error_get_last

(PHP 5 >= 5.2.0)

error_get_lastObtém o último erro ocorrido

Descrição

array error_get_last ( void )

Obtém informação sobre o último erro que ocorreu.

Valor Retornado

Retorna um array associativo descrevendo o último erro com chaves "type", "message", "file" e "line". Retorna NULL se não tiver ocorrido um erro até a chamada da função.

Exemplos

Exemplo #1 Um exemplo da error_get_last()

<?php
echo $a;
print_r(error_get_last());
?>

O exemplo acima irá imprimir algo similar à:

Array
(
    [type] => 8
    [message] => Undefined variable: a
    [file] => C:\WWW\index.php
    [line] => 2
)

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User Contributed Notes 12 notes

up
7
nicolas dot grekas+php at gmail dot com
10 months ago
To clear error_get_last(), or put it in a well defined state, you should use the code below. It works even when a custom error handler has been set.

<?php

// var_dump or anything else, as this will never be called because of the 0
set_error_handler('var_dump', 0);
@
$undef_var;
restore_error_handler();

// error_get_last() is now in a well known state:
// Undefined variable: undef_var

... // Do something

$e = error_get_last();

...

?>
up
3
php at joert dot net
3 years ago
To simulate this function in a horrid way for php <5.2, you can use something like this.
<?php
if( !function_exists('error_get_last') ) {
   
set_error_handler(
       
create_function(
           
'$errno,$errstr,$errfile,$errline,$errcontext',
           
'
                global $__error_get_last_retval__;
                $__error_get_last_retval__ = array(
                    \'type\'        => $errno,
                    \'message\'        => $errstr,
                    \'file\'        => $errfile,
                    \'line\'        => $errline
                );
                return false;
            '
       
)
    );
    function
error_get_last() {
        global
$__error_get_last_retval__;
        if( !isset(
$__error_get_last_retval__) ) {
            return
null;
        }
        return
$__error_get_last_retval__;
    }
}
?>
up
3
Skrol29
4 years ago
Function error_get_last() will return an error information even if the error is hidden because you've used character @, because of  the "error_reporting" directive in the php.ini file, or because you've used function error_reporting().

Examples:

<?php
error_reporting
(E_ALL ^ E_NOTICE);
$y = $x;
$err = error_get_last();
var_export($err);
?>
Will display: array ( 'type' => 8, 'message' => 'Undefined variable: x', 'file' => 'test.php', 'line' => 4, )

<?php
$y
= @$x;
$err = error_get_last();
var_export($err);
?>
Will display: array ( 'type' => 8, 'message' => 'Undefined variable: x', 'file' => 'test.php', 'line' => 4, )
up
2
mail at mbaierl dot com
6 years ago
This function is pretty useless, as it can not be reset, so there is no way to know if the error really happened on the line before this function call.
up
1
michael at getsprink dot com
5 years ago
The error_get_last() function will give you the most recent error even when that error is a Fatal error.

Example Usage:

<?php

register_shutdown_function
('handleFatalPhpError');

function
handleFatalPhpError() {
  
$last_error = error_get_last();
   if(
$last_error['type'] === E_ERROR) {
      echo
"Can do custom output and/or logging for fatal error here...";
   }
}

?>
up
1
iant at clickwt dot com
4 years ago
Beware that registing a shutdown function to catch errors won't work if other shutdown functions throw errors.

<?php

register_shutdown_function
('cleanupObjects');
register_shutdown_function('handleFatalPhpError');

function
cleanupObjects() {
  
trigger_error('An insignificant problem', E_USER_WARNING);
}

function
handleFatalPhpError() {
  
$last_error = error_get_last();
   if(
$last_error['type'] === E_ERROR || $last_error['type'] === E_USER_ERROR) {
      echo
"Can do custom output and/or logging for fatal error here...";
   }
}

trigger_error('Something serious', E_USER_ERROR);

?>

In the above code, $last_error will contain the warning, becuase cleanupObjects() is called first.
up
1
dmgx dot michael at gmail dot com
3 years ago
If an error handler (see set_error_handler ) successfully handles an error then that error will not be reported by this function.
up
1
vike2000 at google mail domain
1 year ago
To know if something happened between two statements one can of course use a special string with user_error() (in lieu of a built-in special reset mentioned by mail at mbaierl dot com): <?php
@user_error($error_get_last_mark='error_get_last mark');
$not_set;
$error_get_last=error_get_last();
$something_happened=($error_get_last['message']!=$error_get_last_mark); ?>

If your <?php set_error_handler(function) ?> function returns true then you'll have to roll you own error_get_last functionality. (Shortly mentioned by dmgx dot michael at gmail dot com).

To manual moderators: Re php.net/manual/add-note.php: Since i guess the above technically sorts under "References to other notes" i feel the need to defend myself with that i'm thinking it might show for usability where other's say it fails and no, i haven't got any other medium to reach the readers of the php manual notes.
Also, you could have some examples of what notes you think is okay. Thanks for your moderation.
up
1
Brad
6 years ago
Like $php_errormsg, the return value of this function may not be updated if a user-defined error handler returns non-FALSE. Tested on PHP 5.2.6.

<?php
var_dump
(PHP_VERSION);
// Outputs: string(5) "5.2.6"

@trigger_error("foo");
$e=error_get_last();
var_dump($e['message']);
// Outputs: string(3) "foo"

set_error_handler(create_function('$a,$b',''));

@
trigger_error("bar");
$e=error_get_last();
var_dump($e['message']);
// Outputs: string(3) "foo"

set_error_handler(create_function('$a,$b','return false;'));

@
trigger_error("baz");
$e=error_get_last();
var_dump($e['message']);
// Outputs: string(3) "baz"
?>
up
1
Brad
6 years ago
It can't be completely reset, but you can "clear" it well enough for all practical purposes:
<?php
@trigger_error("");
// do stuff...
$e=error_get_last();
if(
$e['message']!==''){
   
// An error occurred
}
?>
up
0
scott at eyefruit dot com
4 years ago
If you have the need to check whether an error was a fatal error  before PHP 5.2 (in my case, within an output buffer handler), you can use the following hack:

<?php
# Check if there was a PHP fatal error.
# Using error_get_last is the "right" way, but it requires PHP 5.2+. The back-up is a hack.
if (function_exists('error_get_last')) {
   
$lastPHPError = error_get_last();
   
$phpFatalError = isset($lastPHPError) && $lastPHPError['type'] === E_ERROR;
} else {
   
$phpFatalError = strstr($output, '<b>Fatal error</b>:') && ! strstr($output, '</html>');
}
?>

This is, of course, language-dependent, so it wouldn't be good in widely-distributed code, but it may help in certain cases (or at least be the base of something that would work).
up
0
phil at wisb dot net
5 years ago
While mail at mbaierl dot com makes the point that this function isn't best for reporting the possible error condition of the most recently executed step, there are situations in which it is especially helpful to know the last error—regardless of when it occurred.

As an example, imagine if you had some code that captured the output from dynamic pages, and cached it for faster delivery to subsequent visitors. A final sanity check would be to see if an error has occurred anywhere during the execution of the script. If there has been an error, we probably don't want to cache that page.
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