mysqli_stmt::bind_param

mysqli_stmt_bind_param

(PHP 5, PHP 7)

mysqli_stmt::bind_param -- mysqli_stmt_bind_paramBinds variables to a prepared statement as parameters

Descrierea

Stil obiect-orientat

bool mysqli_stmt::bind_param ( string $types , mixed &$var1 [, mixed &$... ] )

Stil procedural

bool mysqli_stmt_bind_param ( mysqli_stmt $stmt , string $types , mixed &$var1 [, mixed &$... ] )

Bind variables for the parameter markers in the SQL statement that was passed to mysqli_prepare().

Notă:

If data size of a variable exceeds max. allowed packet size (max_allowed_packet), you have to specify b in types and use mysqli_stmt_send_long_data() to send the data in packets.

Notă:

Care must be taken when using mysqli_stmt_bind_param() in conjunction with call_user_func_array(). Note that mysqli_stmt_bind_param() requires parameters to be passed by reference, whereas call_user_func_array() can accept as a parameter a list of variables that can represent references or values.

Parametri

stmt

Numai stilul procedural: Un identificator al declarației întors de mysqli_stmt_init().

types

A string that contains one or more characters which specify the types for the corresponding bind variables:

Type specification chars
Character Description
i corresponding variable has type integer
d corresponding variable has type double
s corresponding variable has type string
b corresponding variable is a blob and will be sent in packets

var1

The number of variables and length of string types must match the parameters in the statement.

Valorile întoarse

Întoarce valoarea TRUE în cazul succesului sau FALSE în cazul eșecului.

Exemple

Example #1 Stil obiect-orientat

<?php
$mysqli 
= new mysqli('localhost''my_user''my_password''world');

/* check connection */
if (mysqli_connect_errno()) {
    
printf("Connect failed: %s\n"mysqli_connect_error());
    exit();
}

$stmt $mysqli->prepare("INSERT INTO CountryLanguage VALUES (?, ?, ?, ?)");
$stmt->bind_param('sssd'$code$language$official$percent);

$code 'DEU';
$language 'Bavarian';
$official "F";
$percent 11.2;

/* execute prepared statement */
$stmt->execute();

printf("%d Row inserted.\n"$stmt->affected_rows);

/* close statement and connection */
$stmt->close();

/* Clean up table CountryLanguage */
$mysqli->query("DELETE FROM CountryLanguage WHERE Language='Bavarian'");
printf("%d Row deleted.\n"$mysqli->affected_rows);

/* close connection */
$mysqli->close();
?>

Example #2 Stil procedural

<?php
$link 
mysqli_connect('localhost''my_user''my_password''world');

/* check connection */
if (!$link) {
    
printf("Connect failed: %s\n"mysqli_connect_error());
    exit();
}

$stmt mysqli_prepare($link"INSERT INTO CountryLanguage VALUES (?, ?, ?, ?)");
mysqli_stmt_bind_param($stmt'sssd'$code$language$official$percent);

$code 'DEU';
$language 'Bavarian';
$official "F";
$percent 11.2;

/* execute prepared statement */
mysqli_stmt_execute($stmt);

printf("%d Row inserted.\n"mysqli_stmt_affected_rows($stmt));

/* close statement and connection */
mysqli_stmt_close($stmt);

/* Clean up table CountryLanguage */
mysqli_query($link"DELETE FROM CountryLanguage WHERE Language='Bavarian'");
printf("%d Row deleted.\n"mysqli_affected_rows($link));

/* close connection */
mysqli_close($link);
?>

Exemplele de mai sus vor afișa:

1 Row inserted.
1 Row deleted.

A se vedea și

add a note add a note

User Contributed Notes 47 notes

up
59
jk at jankriedner dot de
6 years ago
There are some things to note when working with mysqli::bind_param() and array-elements.
Re-assigning an array will break any references, no matter if the keys are identical.
You have to explicitly reassign every single value in an array, for the references to be kept.
Best shown in an example:
<?php
function getData() {
    return array(
       
0=>array(
           
"name"=>"test_0",
           
"email"=>"test_0@example.com"
       
),
       
1=>array(
           
"name"=>"test_1",
           
"email"=>"test_1@example.com"
       
)
    );
}
$db  = new mysqli("localhost","root","","tests");
$sql = "INSERT INTO `user` SET `name`=?,`email`=?";
$res = $db->prepare($sql);
// If you bind array-elements to a prepared statement, the array has to be declared first with the used keys:
$arr = array("name"=>"","email"=>"");
$res->bind_param("ss",$arr['name'],$arr['email']);
//So far the introduction...

/*
    Example 1 (wont work as expected, creates two empty entries)
    Re-assigning the array in the while()-head generates a new array, whereas references from bind_param stick to the old array
*/
foreach( getData() as $arr ) {
   
$res->execute();
}

/*
    Example 2 (will work as expected)
    Re-assigning every single value explicitly keeps the references alive
*/
foreach( getData() as $tempArr ) {
    foreach(
$tempArr as $k=>$v) {
       
$arr[$k] = $v;
    }
   
$res->execute();
}
?>

Coming to the problem calling mysqli::bind_param() with a dynamic number of arguments via call_user_func_array() with PHP Version 5.3+, there's another workaround besides using an extra function to build the references for the array-elements.
You can use Reflection to call mysqli::bind_param(). When using PHP 5.3+ this saves you about 20-40% Speed compared to passing the array to your own reference-builder-function.
Example:
<?php
$db    
= new mysqli("localhost","root","","tests");
$res    = $db->prepare("INSERT INTO test SET foo=?,bar=?");
$refArr = array("si","hello",42);
$ref    = new ReflectionClass('mysqli_stmt');
$method = $ref->getMethod("bind_param");
$method->invokeArgs($res,$refArr);
$res->execute(); 
?>
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14
Kai Sellgren
8 years ago
A few notes on this function.

If you specify type "i" (integer), the maximum value it allows you to have is 2^32-1 or 2147483647. So, if you are using UNSIGNED INTEGER or BIGINT in your database, then you are better off using "s" (string) for this.

Here's a quick summary:
(UN)SIGNED TINYINT: I
(UN)SIGNED SMALLINT: I
(UN)SIGNED MEDIUMINT: I
SIGNED INT: I
UNSIGNED INT: S
(UN)SIGNED BIGINT: S

(VAR)CHAR, (TINY/SMALL/MEDIUM/BIG)TEXT/BLOB should all have S.

FLOAT/REAL/DOUBLE (PRECISION) should all be D.

That advice was for MySQL. I have not looked into other database software.
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16
Anonymous
6 years ago
Blob and null handling aside, a couple of notes on how param values are automatically converted and forwarded on to the Mysql engine based on your type string argument:

1) PHP will automatically convert the value behind the scenes to the underlying type corresponding to your binding type string.  i.e.:

<?php

$var
= true;
bind_param('i', $var); // forwarded to Mysql as 1

?>

2) Though PHP numbers cannot be reliably cast to (int) if larger than PHP_INT_MAX, behind the scenes, the value will be converted anyway to at most long long depending on the size.  This means that keeping in mind precision limits and avoiding manually casting the variable to (int) first, you can still use the 'i' binding type for larger numbers.  i.e.:

<?php

$var
= '429496729479896';
bind_param('i', $var); // forwarded to Mysql as 429496729479900

?>

3) You can default to 's' for most parameter arguments in most cases.  The value will then be automatically cast to string on the back-end before being passed to the Mysql engine.  Mysql will then perform its own conversions with values it receives from PHP on execute.  This allows you to bind not only to larger numbers without concern for precision, but also to objects as long as that object has a '__toString' method.

This auto-string casting behavior greatly improves things like datetime handling.  For example: if you extended DateTime class to add a __toString method which outputs the datetime format expected by Mysql, you can just bind to that DateTime_Extended object using type 's'.  i.e.:

<?php

// DateTime_Extended has __toString defined to return the Mysql formatted datetime
$var = new DateTime_Extended;
bind_param('s', $var); // forwarded to Mysql as '2011-03-14 17:00:01'

?>
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9
user at mail dot com
6 years ago
I had a problem with the LIKE operator

This code did not work:

<?php
$test
= $sql->prepare("SELECT name FROM names WHERE name LIKE %?%");
$test->bind_param("s", $myname);
?>

The solution is:

<?php
$test
= $sql->prepare("SELECT name FROM names WHERE name LIKE ?");
$param = "%" . $myname . "%";
$test->bind_param("s", $param);
?>
up
17
Guido
5 years ago
Dear all,

I was searching for a class which supports multiple calls to bind_param, because I have scenarios where I build huge SQL statements over different functions with variable numbers of parameters. But I didn't found one. So I have just written up this little piece of code I would like to share with you. There is enough room to optimize these classes, but it shows the general idea. And for me it works. In mbind_param_do() it seems to depend from the PHP version if makeValuesReferenced() must be used or if $params can be used directly. In my case I have to use it.

The cool thing about this solution: You don't have to care about a lot if you are using my mbind_ functions or not. You may also use default bind_param and the execute will still work.

<?php

class db extends mysqli {
    public function
prepare($query) {
        return new
stmt($this,$query);
    }
}

class
stmt extends mysqli_stmt {
    public function
__construct($link, $query) {
       
$this->mbind_reset();
       
parent::__construct($link, $query);
    }

    public function
mbind_reset() {
        unset(
$this->mbind_params);
        unset(
$this->mbind_types);
       
$this->mbind_params = array();
       
$this->mbind_types = array();
    }
   
   
//use this one to bind params by reference
   
public function mbind_param($type, &$param) {
       
$this->mbind_types[0].= $type;
       
$this->mbind_params[] = &$param;
    }
   
   
//use this one to bin value directly, can be mixed with mbind_param()
   
public function mbind_value($type, $param) {
       
$this->mbind_types[0].= $type;
       
$this->mbind_params[] = $param;
    }
   
   
    public function
mbind_param_do() {
       
$params = array_merge($this->mbind_types, $this->mbind_params);
        return
call_user_func_array(array($this, 'bind_param'), $this->makeValuesReferenced($params));
    }
   
    private function
makeValuesReferenced($arr){
       
$refs = array();
        foreach(
$arr as $key => $value)
       
$refs[$key] = &$arr[$key];
        return
$refs;

    }
   
    public function
execute() {
        if(
count($this->mbind_params))
           
$this->mbind_param_do();
           
        return
parent::execute();
    }
   
    private
$mbind_types = array();
    private
$mbind_params = array();
}

$search1 = "test1";
$search2 = "test2";

$_db = new db("host","user","pass","database");
$query = "SELECT name FROM table WHERE col1=? AND col2=?";
$stmt = $_db->prepare($query);

$stmt->mbind_param('s',$search1);
//this second call is the cool thing!!!
$stmt->mbind_param('s',$search2);

$stmt->execute();

//this would still work!
//$search1 = "test1changed";
//$search2 = "test2changed";
//$stmt->execute();

...

$stmt->store_result();
$stmt->bind_result(...);
$stmt->fetch();
?>
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10
canche_x at yahoo dot com
7 years ago
Hi, I just write a function to do all my sql statements based on all the others comments in this page, maybe it can be useful for someone else :)

Usage:

execSQL($sql, $parameters, $close);

$sql = Statement to execute;
$parameters = array of type and values of the parameters (if any)
$close = true to close $stmt (in inserts) false to return an array with the values;

Examples:

execSQL("SELECT * FROM table WHERE id = ?", array('i', $id), false);

execSQL("SELECT * FROM table", array(), false);

execSQL("INSERT INTO table(id, name) VALUES (?,?)", array('ss', $id, $name), true);

<?php

function execSQL($sql, $params, $close){
          
$mysqli = new mysqli("localhost", "user", "pass", "db");
          
          
$stmt = $mysqli->prepare($sql) or die ("Failed to prepared the statement!");
          
          
call_user_func_array(array($stmt, 'bind_param'), refValues($params));
          
          
$stmt->execute();
          
           if(
$close){
              
$result = $mysqli->affected_rows;
           } else {
              
$meta = $stmt->result_metadata();
           
               while (
$field = $meta->fetch_field() ) {
                  
$parameters[] = &$row[$field->name];
               } 
       
           
call_user_func_array(array($stmt, 'bind_result'), refValues($parameters));
              
            while (
$stmt->fetch() ) { 
              
$x = array(); 
               foreach(
$row as $key => $val ) { 
                 
$x[$key] = $val
               } 
              
$results[] = $x
            }

           
$result = $results;
           }
          
          
$stmt->close();
          
$mysqli->close();
          
           return 
$result;
   }
  
    function
refValues($arr){
        if (
strnatcmp(phpversion(),'5.3') >= 0) //Reference is required for PHP 5.3+
       
{
           
$refs = array();
            foreach(
$arr as $key => $value)
               
$refs[$key] = &$arr[$key];
            return
$refs;
        }
        return
$arr;
    }
?>

Regards
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3
tomasz at marcinkowski dot pl
3 years ago
When trying to bind a string param you get a "Number of variables doesn't match number of parameters in prepared statement" error, make sure you're not wrapping the question mark with quotes.

By mistake I had a query like:
SELECT something FROM table WHERE param_name = "?"

Binding it with <?php $stmt->bind('s', $param_value); ?> had been failing on me. All I had to do was to remove quotes around "?".
Hope this saves someone's time.
up
3
michael dot martinek at gmail dot com
9 years ago
Small correction. This version removes the NULL element from the array, so it doesn't fall on to the next ? when passed to mysql_stmt_bind_param(). Note that $saParams is still passed by reference, but now it is being modified.

<?php

function preparse_prepared($sQuery, &$saParams)
{
   
$nPos = 0;

   
$sRetval = $sQuery;
    foreach (
$saParams as $x_Key => $Param)
    {
       
//if we find no more ?'s we're done then
       
if (($nPos = strpos($sQuery, '?', $nPos + 1)) === false)
        {
            break;
        }

       
//this test must be done second, because we need to increment offsets of $nPos for each ?.
        //we have no need to parse anything that isn't NULL.
       
if (!is_null($Param))
        {
            continue;
        }

               
       
//null value, replace this ? with NULL.
       
$sRetval = substr_replace($sRetval, 'NULL', $nPos, 1);

       
//unset this element now
       
unset($saParams[$x_Key]);
    }
           
           
    return
$sRetval;
}

?>
up
7
bboymarco
2 years ago
I did for myself a really useful function (cause I didn't want to use eval() or reflection) that create for you a prepared statement with an indefinite number of parameters and return an indefinite number of result columns. Last two arguments are optional so when you don't have parameters to send to MySQL you can avoid them. I decided to share it here cause it may  be helpful and save some time and brainstorming:

function prepared_stmt($con, $query, $type = "", $param = array()){

    if($stmt = mysqli_prepare($con, $query)){

        $refarg = array($stmt, $type);//First two parameter of mysqli_stmt_bind_param

        foreach ($param as $key => $value)//create array of parameters' references

            $refarg[] =& $param[$key];
       
        if($type != "")//Jump instruction if argument $type is missing
           
            call_user_func_array("mysqli_stmt_bind_param", $refarg);//bind parameters with dinamic length

        if(mysqli_stmt_execute($stmt)){//check if execution go fine
           
            $cols = mysqli_field_count($con);//retrive the number of columns of the resultset
           
            $result = array_fill(0, $cols, NULL);//create an empty array with the same length of the columns
                   
            $ref = array($stmt);//first argument of mysqli_stmt_bind_result

            foreach ($result as $key => $value)//create array of empty cells' references

                $ref[] =& $result[$key];

            call_user_func_array("mysqli_stmt_bind_result", $ref);//bind results with dinamic length

            return $ref;//return statement and columns references
           
           
        }//if

        else
           
            return false;
       
       

    }//if
   
    else
       
        return false;

}//prepared_stmt

Example of call:

$hello = prepared_stmt($con, "SELECT Example FROM table WHERE Col=?", "s", array("LOL");
//count($hello) is equal to 2
//$hello[0] Statement reference
//$hello[1] Example column field where to find values after fetching

while(mysqli_stmt_fetch($hello[0]))
         echo $hello[1] . "<br>";//This will print all value of the Example column
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2
travis at twooutrally dot com
1 year ago
Parameter type matters more than you might think!

A cautionary tail to any who would seek to find less than thorough solutions for automating prepared statements. Take the following mysqli_stmt extension method for example.

<?php

public function param_type($param)
{
    if (
ctype_digit((string) $param)
        return
$param <= PHP_INT_MAX ? 'i' : 's';

    if (
is_numeric($param))
        return
'd';

    return
's';
}

?>

At face value this seems like a perfectly straightforward and innocuous function. Something like this served as a small piece in a larger automation extension which dutifully served its purpose efficiently handling hundreds of thousands of queries a day.

Now I know what you're thinking: it doesn't handle blob types. Well we didn't work with blob types (and still don't) so that's never been an issue. This problem was far more insidious and ultimately pernicious than that.

So what went wrong? The problem began to surface when we started automating SELECT queries on a newly created index for a column designed to store telephone numbers. The column was of type VARCHAR but the data stored was always formatted as an integer. Not a problem when performing a write operation but as soon as we went to read from the table on this index everything went to hell.

We're not entirely sure, but as near as we can tell the act of binding a parameter to a VARCHAR index as 'i' instead of 's' on a read query is detrimental in the following way: MySQL will ignore the b-tree on the index and perform a full table scan. With smaller tables this may never present itself as a significant performance issue. When your tables get into the tens of millions of rows, however...
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11
fabio at kidopi dot com dot br
7 years ago
I used to have problems with call_user_func_array and bind_param after migrating to php 5.3.

The problem is that 5.3 requires array values as reference while 5.2 works with real values.

so i created a secondary function to help me with this...

<?php
function refValues($arr){
    if (
strnatcmp(phpversion(),'5.3') >= 0) //Reference is required for PHP 5.3+
   
{
       
$refs = array();
        foreach(
$arr as $key => $value)
           
$refs[$key] = &$arr[$key];
        return
$refs;
    }
    return
$arr;
}
?>

and changed my previous function from:

<?php
call_user_func_array
(array($this->stmt, "bind_param"),$this->valores);
?>

to:

<?php
call_user_func_array
(array($this->stmt, "bind_param"),refValues($this->valores));
?>

in this way my db functions keep working in php 5.2/5.3 servers.

I hope this help someone.
up
6
Anonymous
6 years ago
You can bind to variables with NULL values, and on update and insert queries, the corresponding field will be updated to NULL no matter what bind string type you associated it with.  But, for parameters meant for the WHERE clause (ie where field = ?), the query will have no effect and produce no results.

When comparing a value against NULL, the MYSQL syntax is either "value IS NULL" or "value IS NOT NULL".  So, you can't pass in something like "WHERE (value = ?)" and expect this to work using a null value parameter.

Instead, you can do something like this in your WHERE clause:

"WHERE (IF(ISNULL(?), field1 is null, field1 = ?))"

Then, pass in the value you want to test twice:

bind_param('ss', $value1, $value1);
up
2
michael dot martinek at gmail dot com
9 years ago
I've found that you can't pass NULL values in using mysql_stmt_bind_param. Recently I ran into this problem because I wrote some MySQL routines that would update existing data, but only when the value wasn't NULL.

My solution to work around this is simple:

<?php

function preparse_prepared($sQuery, &$saParams)
{
   
$nPos = 0;

   
$sRetval = $sQuery;
    foreach (
$saParams as $Param)
    {
       
//if we find no more ?'s we're done then
       
if (($nPos = strpos($sQuery, '?', $nPos + 1)) === false)
        {
            break;
        }

       
//this test must be done second, because we need to increment offsets of $nPos for each ?.
        //we have no need to parse anything that isn't NULL.
       
if (!is_null($Param))
        {
            continue;
        }

               
       
//null value, replace this ? with NULL.
       
$sRetval = substr_replace($sRetval, 'NULL', $nPos, 1);
    }
           
           
    return
$sRetval;
}

?>

This will iterate the given list of parameters and replace any null values in the query with an actual null value. You'll want to use the resulting $sQuery to pass to mysqli_prepare(). For that, I use another routine that generates a list of the values (s, i, etc).

For example:

<?php

                    array_unshift
($saParams, $this->getPreparedTypeString($saParams));
                   
array_unshift($saParams, $stmt);
                   
                   
call_user_func_array('mysqli_stmt_bind_param', $saParams);

?>

Where getPreparedTypeString is defined as:

<?php

       
public static function getPreparedTypeString(&$saParams)
        {
           
$sRetval = '';

           
//if not an array, or empty.. return empty string
           
if (!is_array($saParams) || !count($saParams))
            {
                return
$sRetval;
            }

           
//iterate the elements and figure out what they are, and append to result
           
foreach ($saParams as $Param)
            {
                if (
is_int($Param))
                {
                   
$sRetval .= 'i';
                }
                else if (
is_double($Param))
                {
                   
$sRetval .= 'd';
                }
                else if (
is_string($Param))
                {
                   
$sRetval .= 's';
                }
            }

            return
$sRetval;
        }

?>

To clarify why I pass array values by reference: They aren't being modified, so I don't want copies of them begin made in memory as they may be large. In other languages, this is much more efficient. Not sure if PHP handles passing values on a "copy on edit" basis.. but I'm guessing not.
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13
nick9v at hotmail dot com
5 years ago
When dealing with a dynamic number of field values while preparing a statement I find this class useful.

<?php
class BindParam{
    private
$values = array(), $types = '';
   
    public function
add( $type, &$value ){
       
$this->values[] = $value;
       
$this->types .= $type;
    }
   
    public function
get(){
        return
array_merge(array($this->types), $this->values);
    }
}
?>

Usage is pretty simple. Create an instance and use the add method to populate. When you're ready to execute simply use the get method.

<?php
$bindParam
= new BindParam();
$qArray = array();

$use_part_1 = 1;
$use_part_2 = 1;
$use_part_3 = 1;

$query = 'SELECT * FROM users WHERE ';
if(
$use_part_1){
   
$qArray[] = 'hair_color = ?';
   
$bindParam->add('s', 'red');
}
if(
$use_part_2){
   
$qArray[] = 'age = ?';
   
$bindParam->add('i', 25);
}
if(
$use_part_3){
   
$qArray[] = 'balance = ?';
   
$bindParam->add('d', 50.00);
}

$query .= implode(' OR ', $qArray);

//call_user_func_array( array($stm, 'bind_param'), $bindParam->get());

echo $query . '<br/>';
var_dump($bindParam->get());
?>

This gets you the result that looks something like this:

SELECT * FROM users WHERE hair_color = ? OR age = ? OR balance = ?
array(4) { [0]=> string(3) "sid" [1]=> string(3) "red" [2]=> int(25) [3]=> float(50) }

[Editor's note: changed BindParam::add() to accept $value by reference and thereby prevent a warning in newer versions of PHP.]
up
2
robstocki at battlesecure dot com
5 years ago
Here is the procedural version of a select statement when wanting to use %LIKE% in the query and not an '=':
<?php
function db_connect(){
//    set $db as global for access outside function
   
global $db;
   
#    Use procedural methods for database connection and manipulation
//    Connect to Database
   
@$db = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);

//    Check connection
   
if(mysqli_connect_errno()) {
        echo
'<br />Error: Could not connect to database.  Please try again later.<br />';
        exit;
    }
   
}

//    Connect to Database
   
db_connect();
    
   
$theRecordInTheTableIs = "%".$_POST['theRecordInTheTableIs']."%";    //    concat $_POST variable with % on each side for use in prepared statement
   
$theRelatedRecordLooks = "%".$_POST['theRelatedRecordLooks']."%";    //    concat $_POST variable with % on each side for use in prepared statement
   

//    Create Query
   
$q      =     '';        //    create variable for input
   
$q     .=     " SELECT ";
   
$q     .=     " * ";
   
$q     .=     " FROM ";
   
$q     .=     " myFavTable ";
   
$q     .=     " WHERE ";
   
$q    .=     " theRecordInTheTableIs LIKE ? ";
   
$q    .=     " AND ";
   
$q    .=     " theRelatedRecordLooks LIKE ? ";
   
//    Prepare the statement
   
$stmt = mysqli_prepare($db, $q);

//    bind the paramaters
   
mysqli_stmt_bind_param($stmt, 'ss', $theRecordInTheTableIs,$theRelatedRecordLooks);   
                                                           
//    Execute the query                                                                               
   
mysqli_stmt_execute($stmt);

// bind result variables 
   
mysqli_stmt_bind_result($stmt, $col0, $col1, $col2, $col3, $col4, $col5, $col6, $col7, $col8, $col9, $col10);

   
//    Display the query
//    start the table

echo '<table>
    <tr>
        <td>Col0 Title</td>
        <td>Col1 Title</td>
        <td>Col2 Title</td>
        <td>Col3 Title</td>
        <td>Col4 Title</td>
        <td>Col5 Title</td>
        <td>Col6 Title</td>
        <td>Col7 Title</td>
        <td>Col8 Title</td>
        <td>Col9 Title</td>
        <td>Col10 Title</td>
    </tr>'
;

// fetch values
   
while (mysqli_stmt_fetch($stmt)) {
        echo
"     <tr>
        <td>
{$col0}</td>
        <td>
{$col1}</td>
        <td>
{$col2}</td>
        <td>
{$col3}</td>
        <td>
{$col4}</td>
        <td>
{$col5}</td>
        <td>
{$col6}</td>
        <td>
{$col7}</td>
        <td>
{$col8ss="keyword">{$col3$coIpan class="string">" FROM "Oud">{$col8()) {
nbsp;  span class="keyword">,
cloalues, $co/l10        <td>Cord">;
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}
&ys;
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}
    </tr>'mysqli_stmt_bind_parammysqli_stmt_bind_param)
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lRECT * FR I find this class useful.

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DB_PASSWORD
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bindParam;

span class="keyword">ss="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="keyws="ke  &keyword">()) {

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lt">$q   
&nm qli_stmt_ex/>            <td>Col9 Title</td>
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,
'ss';
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.= < echo ;
tles'ss4935=& class="note" id="108790">
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5
robstocki at batlass="string"rd">; } &n $bindParam-&spa>linkI find this class useful.
gt;
       ural methods for database connection and manipulation
; 'hair_color = ?'
; 'hair_color = ?'; 'hair_color = ?';     -&lan> find this class useful.
gt;
  &nbsnbsp; -&ault"n find this class useful.

  &nbsnbsp; ; <"F;/tdDescriptionsp; ; <"F;/tdbr />sp; ; <"Or"gulal Note.$stmt; gt;
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(mysqli_stmt_bind)"s="defa/span>- ;
   
//    bind the paramaters
  & classme&nbo;
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  &nbseyword">-&spa>nbsp$stmt
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  &nbs  &n>
;
   

Usage is pretty MySQLithods for database connection &">" ANDnbsp;       &nbbad_nbsp; 
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      ;
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. $db, " ANDnbsp;       &nbbad_nbspclass="comment">//  &nbs. (;

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    ;
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1 robstocki at batA lo
&nm dfind it h r />&ngetoutpared. is &par. isnbsp; Ikeywell:t">$bindParam. } ;
   
'hair_color = ?'
; 'hair_color = ?'; ;
   
'hair_color = ?'
; 'hair_color = ?'; ;
   
'hair_color = ?'
; 'hair_color = ?'; ;
   
'hair_color = ?'
; 'hair_color = ?'
    </tr>'mysqli_stmt_bind_values
  &ass="defauarrspan>lpan class="keyword">;
  &ass="defauarrBindNotelpan class="keyword">;
. />
Usage is pretty stdCsageecute
@ />
Usage is pretty m Col10 Title</td>
    </tr>';
  &ass="defaDB_USERNAMEpan class="keyword">;
  &ass="defaDB_PASSWORDpan class="keyword">;
  &ass="defaDB_DEFAULT_DBs="string">'hair_color = ?'$sRetval 'ss'. " theRelatedRecoord">; 'hair_color = ?'$sRetval ;
.= $sRetval " theRelatedRecordLooks L$m Col10 Title</td>
. ;
   
mysqli_stmt_bind)) {
'ss';
   
'hair_color = ?'
; 'ss'. //if we find no more ?'s wet">$stmt;
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  &nb
l
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;
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;
;
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;
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; 'ss''ss'. //if we find no more ?'s wet">$stmt;
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up
1
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0
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. (. . . //if we find no more ?'s wet">Insert$stmt. . . } -n>text" up;totally pasang. span cey aren't being modified, so I d" [1]=> string(3) "red11653=> int(25) [3]=> float(50) }
robstocki at batIlhas to do a mon>;adv"usss dfid="Hcom(A m. < class="string">'t)>&nmaklupa#10s easier fe">asf/>Hcos,usoaI wrop;uesedfoupow/>Anm  objectsp;   &NOTE2: Tsis fid="Hco cur * tly only/aupport esedspan> text" yumpcanamodify ithto/aupport;addieHcoaldwan> &it:bsp; &/class="keyword">. } gt;
  &nbsord">; <"  id,saer"oFwordcounxry"         "sp; &nbcute. gt;
     $d. //if we find no more ?'s wer =s="default">mysqli_stmt_bind)"m108790">
mysqli_stmt_bindif(!bcute. mysqli_stmt_bind) {.=
mysqli_an>br />Thelg">'ts crom woThtmt &nset,saer"ofir ? worn id,sjust&up e nbs tring">'t.   &$pD(//iterate the elerow=s="default">mysqli_stmt_bind) {; . mysqli_stmt_bindepared statement
;   &>; . mysqli_stmt_bindepared statement
;
&esis'; &be vald la; &non!!!Parammysqli_p;  $d. s &nb;
   
; . } 's=esedfid="Hco:sp;   &/class="keyword">. }
s &nb;
   
<  &nbbr =s="default">mysqli_stmt_bindoanbsp;       &nblan>lpan class="keyword">;
  &ass="defaun
} gt;
     $esis find this class useful.
. .                 &nbbr =s="default">mysqli_stmt_bind)"sp; &n. mysqli_stmt_bind) {.=
'tdcouldnclablu class=",saheckhde">ebsors. (. //iterate the elecan>// ol7bss="comment">//iterate the elel=s="default">mysqli_stmt_bind) {; //&nb.anbsp;       &nbcan>//&nb.anbsp;     nbsp; //&nb.anbsp;       &nbvan>//&nb.anbsp;     nbsp; ; //&nb.anbsp;       &nbcan>//&nb.anbsp;     nbsp; span>$'an>//&nb.anbsp;       &nbcan>//&nb.anbsp;     nbsp;
en ltri10(mysqli_stmt_bind)"sp; &n. mysqli_stmt_bindspan>;   &ass="defa
;
&
. lpan class="keyword">;
  &ass="defa$ltrspan class="keyword">;
(//iterate the elerow=s="default">mysqli_stmt_bind) {(//iterate the elecan>// ol7bss="comment">//iterate the elel=s="default">mysqli_stmt_bind) {; //&nb.anbsp;       &nbcan>//&nb.anbsp;     nbsp; //&nb.anbsp;       &nbvan>//&nb.anbsp;     nbsp; <>  &$et" find this class useful.
. .
up
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robstocki at batIt may seem obviou text" it'shnbsth ult#1087h-paltri10Tm. Tois examplg sorken weup/fe">me (line 12). . } a to />} gt;
  &nbsord">; <"fiote.an>// ol7bss="comment">//iteraord">; <"Walte=man>// an>; <"liote.an>// ol7bss="comment">//iteraord">; <"Williams.an>//&nb)t">$bin,i
gt;
  &nbsord">; <"fiote.an>// ol7bss="comment">//iteraord">; <"Ray">; <"liote.an>// ol7bss="comment">//iteraord">; <"Paseur"class=class="n>//&nb)t">$bin,i
gt;
  &nbsord">; <"fiote.an>// ol7bss="comment">//iteraord">; <"Bill"class=class="n>// an>; <"liote.an>// ol7bss="comment">//iteraord">; <"O'Reiup!" n>//&nb)t">$bin)t">$bin; />} . gt;
  &nbsord">; <"INSERT INTO my_t10} . ecute. .                 &nbbr =s="default">mysqli_stmt_bind)"
robstocki at batTsi might b/Ohelpful de">yworonr. Idd=dpaaobstoc /o man $vsesedpult"p; &s : . } gt;
  &nbs>  &$IKE ? find this class useful.
.               ord">; <"CALL>ptem_add(?, ?, ?, ?)"         )l } . />. 't_P  &ecute. . ; <'mydescripB_US;         oanbsp;       &nSring">'t_P  &_Type         ::ecute. } . . ; <'myeaS;         o>'t_P  &_Type         ::ecute. } . . ; <'mypd"ce;         oclass="class="class="class="/span class="keyword  &nSring">'t_P  &_Type         ::ecute. ;
. . ; <'myactive;         oclass="class="class="class="/span class="keyword  &nSring">'t_P  &_Type         ::ecute.
. . ;
. . ; <'myactive;         oss="comment">//itera  &n0         )l . . ; <'mydescripB_US;         on>; <'ws-pever'bsp;
't */   &nbsass="defabbt"xpan class="keyword">;
. 't_P  & />}   &nbsass="defab_
a to onl
. .
; <"lan>" n>// ol7bss="comment">//iteraass="defa$lan>         oanbsp;     ord">; <"span>" n>// ol7bss="comment">//iteraass="defa$span>bsp;
;         () ; <""         ">(. //iterate the eleiote find this class useful.
//iteraass="defa$lr         )
; <'ean>'bsp; .= ;
(iasmt        &nbesis find this class useful.
. . . . ; <"span>"         rd">nbsp;        an>bsp; .= .= ;
rd">(;
nbsp;       &nbwsis find this class useful.
. ;         ()l (. //iterate the eleiote find this class useful.
//iteraass="defa$lr         )
span>rd">(. . ; <'span>'bsp; .= . ss="comment">//iteraord">; <'bsp;           )_nbsp;       &nbtr         )l 't_P  &_Type />} ; <'i;         l ; <'d'bsp; ; <'s;         l ; <'b;         l } .
robstocki at batI want="sto ptocswoedpult"p; &s de">yeveralsqspaiec /o assingle fid="Hcom/o fiup esem (pasertI/in "tal hav">; woedsote fields de">examplg),"wh;/t at woedsote timedd=k">; woedean> I
enayou'vedg;voa l;voofdpult"p; &s. Here'smassimple solu"HcomI cote up with:/>} . }
rd">('t         o>span>rd">(nbsp;       &nimpler"ecute; <';         oanbsp;       &na to _ltan> ecute(/cute. //iterate the eleand tNote find this class useful.
//iteraass="defa$and tType         )baramspan>rd">(. . nbsp;       &nnul =s="default">mysqli_stmt_bind"sp; &nclass="}/p; &nbaram.= ('t         o>ss="comment">//iteraord">; <'bsp;           )_"bsp;   &$trgs         );} . 't find this class useful.
gt;
  &nbs>  &$d.               ord">; <'INSERT INTO =my& (ltan>1,dltan>2) VALUES (?, ?)'bsp; } . ; <'p&nbs1' find this class useful.
//iteraord">; <'s;         ,
; <'p&nbs2' find this class useful.
//iteraord">; <'i;         )"/>} . ('t         o>ss="comment">//iteraass="defaup&nbss         )"/>} . ; <'p&nbs1'bsp; nbsp;     ord">; <'p  &ntmy&;         learam. ; <'p&nbs2'bsp; ss="comment">//itera  &n42gt;. 't         . } . } } Isp; &be overwrittenaaf; &nadc up /o ; &nP  &ssto providpaaosensi0. < (oesenwisesitIsp; &be usld acswoedpult"p; & span> w>enayou  ;woedsting">'t)_"soayou neld to reinitializeawoedean> Iif dum want /o ; &nbit /o anoesendsting">'t.y
robstocki at batI al"spdy have/add Ieveryth">; nic/Oand easy. Bupaw>enait cote to prspan">;,a;ind">; and e ">;,aIdfou clitIsas a "spl ch upenge to boip esingshp?id. />} http://bugsv cl.net/bugv class=43568 >} es) up :/>} . } />. } . . ; <'c up yworProc(?,?)'bsp; ; <'ss;         oa to onbsp;     ord">; <'p&nbs1'bsp; ; <'p&nbs2'bsp; } . } } } } . } . . .= baram.=
. lpan class="keyword">;
.                 &nbc upbsp; nbsp;       &nblan>lpan class="keyword">;
(/cute. . .=   &$i find this class useful.
  &$bsp; ioteI find this class useful.
gt;
  &nbsord">; <'bsp;' find this class useful.
  &$i find this class useful.
  &$bsp; ioteI find this class useful.
gt;
  &nbs>  &$p&nbss         en>.   &$bsp; iotes         erd">span>$bsp;   &$bsp; iote find this class useful.
  &$"keyword">.= gt;
  &nbs>  &c up_an>.   &nbsord">; <'bsp;           )_nbsp;       &nbbsp; iotes         )";
. ;
.
-1
robstocki at batI just wro; &aafid="Hcom/o ; &nbaaltri10loclass="bv."> ){l'l);$i++)['.$i.']'l /p; &nbaram<$and ts />a to o "one", "two", "two aial/);lclass=">lo$and ts)"/>}
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robstocki at batW>enaI rd"ld to usesnickv9'sobstochB &nP&nbs, I hadnto makesa/sm up ch nge to get it /o nbsk:/>} . } }
.= (. ecutespan>rd">(. I find this class useful.
gt;
  &nbs>  &$lan>         l
. } } uspan> insteadnofduspan>), n;vojust insesedpult"p; & list./>} } given
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robstocki at batStfdpult"p; & ;ind">; style:/>} . } .= .   &nbsass="defabdb         l  &nbsass="defabmap find this class useful.

; <'%;' find this class useful.
//iteraord">; <'i;         o>ss="comment">//iteraan>; <'%f' find this class useful.
//iteraord">; <'d'bsp;
ss="comment">//iteraan>; <'%s' find this class useful.
//iteraord">; <'s;         ,>ss="comment">//iteraan>;
  &$wsis find this class useful.
. gt;
  &nbsass="defabdb         l
                &nbqspan         oaspan>rd">(//iteraord">; <'/(' find this class useful.
  &impler"ecute; <'|;         oanbsp;       &na to _; &s         &rd">(. ; <')/;         learam(108790">
} . ecute. mysqli_stmt_bind)" robstocki at bat/////////////////////////////// &esisdfid="Hcoality. 'tdabot" 3re"> &as dumpspsh. 't Iu claltri10't , oneanbs templa; &u clam. . } gt;
  &nbsord">; <'mahe>l;         l />} . gt;
  &nbsord">; <'mahe>l;         l />} } . . ;
::ecute
. ;
   
; ;
)l />} . t_r$stmt;
)l
} l . . ;
::ecute
. ;
   
; } . t_r$stmt;
)l
} l ciplg trinds ;
trinic fid="Hcom108790">
;
&) { ecute. ;
::ecute
. (!bcute. gt;
     IKE ? "
                &nblink         oanbsp;       &nbbr =s="default">mysqli_stmt_bind)) {
;
::ecute
. ; 't : uio0;         )lm ; (;
;
  &nbsord">; <'m sp; &s="default"'bsp; ;
gt;
     m sp; &stmt_ex_metan
;
a to onl mysqli_stmt_bind)) { gt;
  &nbs  &nbfield find this class useful.
. . span>$n>. ;
  &nbsord">; <'m sp; &s="deftmt_ex'bsp; ;
   
<  &nbet"xpan class="keyword">;
a to onl (//iterate the eleceyan>// ol7bss="comment">//iteraass="defa$lt =s="default">mysqli_stmt_bind)"{ . ss="comment">//iteraass="defa$lt =s="default">mysqli_stmt_bind="} ;
   
<  &nbtmt_exsbsp;
mysqli_stmt_bind        &nbtmt_ex=s="default">mysqli_stmt_bind)l ;
;
::ecute
. .= .
robstocki at batMiguel Hard"ck's Sring">'t_P  &nbstoc,&as postld insesese ge=my,saupows fe">asrelatively painleocvwa ebr writ/> &wg tri; &"> &; &nbault"p; &s de">any cont>'tdcom/>examplg,uesedfoupow/>'ttext" uooksOapaw>ich qspanastd">; (GET)bault"p; &s an>d'tdpanord &n/o figurlaot" w>ich columns shbsp; b/OR cluded.class="Ts>;P  &Man $vrv cl f;/t;is simply Miguel'cv clasmypas postld insesi discussHco.sp;   &span>. } ; <"dbCono>DB_USP&nbssv cl"         )l/>} ; <"P  &Man $vrv cl"         )l/>} . />. 't_P  &ecute. gt;
  &nbsord">; <""         "sp; &nbaram. _list find this class useful.
gt;
  &nbsord">; <""         "sp; &nbaram<"d>(iasmt;        &nb_GET         en>; <'iote;         ]) ) {. ; <'iote;         oanbsp;       &nSring">'t_P  &_Type         ::ecute. } . ; <'iote;         onbsp;       &nb_GET         en>; <'iote;         ]);(iasmt        &nb_GET         en>; <'add/sss;         ]) ) {. ; <'add/sss;         oanbsp;       &nSring">'t_P  &_Type         ::ecute. } . ; <'add/sss;         onbsp;       &nb_GET         en>; <'add/sss;         ]); list ->esedcodpaabovepsp; &alwo suleave//>Tmuend">; iomasan>ich wThtmmovepnowearam. gt;
  &nbs  &neubord                 &nbcolumn_list         oanbsp;       &n0         oanbsp;       &nordleoecute
. . _list find this class useful.
gt;
  &nbs>  &eubord                  an>_list         oanbsp;       &n0         oanbsp;       &nordleoecute
. . gt;
  &nbsord">; <"pasertIinto =my&_t10//&nb.anbsp;       &nbcolumn_list find this class useful.
<(" n>//&nb.anbsp;        an>_list find this class useful.
mysqli_stmt_bind"sp; &nbaram. @ />. . gt;
  &nbs>  &$IKE ? find this class useful.
.                 &nbbr =s="default">mysqli_stmt_bind)"/>} . . ;
;
. gt;
  &nbs>  &TRUEpan class="keyword">;
  &$ltot_idI find this class useful.
gt;
     $IKE ? find this class useful.
. ; <"OKbsp;   &$ltot_idnbsp;     ord">; <"         "sp; &n}/p; &nlass={>. .
robstocki at batUsld esedhi't Iabovep- esp>esedc up_an>; bybspfT * Fa < . } } DB_US         " ;
l
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. DB_US find this class useful.
/>. ;
(/cute. DB_ebsnobsp; tf("Cbsp; n;voteno>DBn/o esedDB: %s\n", IKE ? _cono>DB_ebsor&)); c/ TMI . tf find this class useful.
; <"Cbsp; n;voteno>DBn/o esedDB"         )l

span>$an><,>span>$iotenl
"sel>DBnid,;p;pagote, role_idIfrom an>;i = ? aad gote = ?"l "faass";class="c/""keywor$nbsp de">furesenanbsk nbsp;       &nbesis find this class useful.
. DB_US         " nbsp;       &nbinfobsp; ; <'and ts'bsp; t_r(binfo);class="c/"debug (/cute. gt;
  &nbs>  &$IKE ? find this class useful.
.                 &nbinfobsp; ; <'qspan'bsp; gt;
  &nbs>  &c up_an>. ; ; <'and ts'bsp; ;
.
(/cute. ; <'close'bsp; gt;
  &nbsord">; <" ue"         ) {
gt;
     $IKE ? find this class useful.
. ;
. .= .= ;
. tf find this class useful.
; <"Pclass="sSring">'t Ebsor:rd">.=
; < \n"         )l"} . paserts, lass=esed$nbsp is speywold de">furesenaproceoc">; <
. } 't haadle.class="If just want="saa>pasert,;p;pdcpost;= ue />} (rd">.= (. ; <'and ts'bsp;
; <'is;         oaspan>rd">((. ; <'qspan'bsp; ss="comment">//iteraord">; <"sel>DBnid,;p;pagote, role_idIfrom an>;i = ? aad gote = ?"         " . ; <'close'bsp; ss="comment">//iteraord">; <"faass"         "class="nbsp;     an>furesenanbsk gt;
     ass=nxecute
. . ;
. .= ;
. ;
&) ) {
lpan class="keyword">;
; <'id'bsp; ss="comment">//itera  &nbcol>;
; <'p;pagote'bsp; ss="comment">//itera  &nbcol2gt;;
; <'role_id'bsp; ss="comment">//itera  &nbcol3bsp; lpan class="keyword">;
; <'ebsor'bsp; ss="comment">//itera  &n0         " ;
. .= .
robstocki at batI dicla; class="string">'t de">pasert">; iomassimple t10'tifi>; ). All my blobs have/sm uper sizesaes-nsesedMAX-ALLOWED-PACKETespan>< ena;ind">; my BLOBbault"p; &, I neld to ptocsitpas a STRING, oesenwisesit's uncatld to zero length iommy t10. } gt;
  &nbsass="defabbt"xpan class="keyword">;
. ;
&>ss="comment">//iteraord">; <'ss;         oanbsp;       &n$id         oanbsp;       &n$ima find this class useful.
} .
robstocki at batYumpcan, iomfact,;p;pdIKE ? _="default"p; &nto ptocsa NULL span> /o esedd (ses=esedd="t $v de">pt) /o esedltri10m>;anyway.y