curl_version

(PHP 4 >= 4.0.2, PHP 5)

curl_versionGibt die cURL-Version zurück

Beschreibung

array curl_version ([ int $age = CURLVERSION_NOW ] )

Gibt Informationen über die cURL-Version zurück.

Parameter-Liste

age

Rückgabewerte

Gibt ein assoziatives Array mit den folgenden Elementen zurück:

Index Beschreibung
version_number cURL 24-Bit Versions-Nummer
version cURL-Version als String
ssl_version_number OpenSSL 24Bt Versions-Nummer
ssl_version OpenSSL-Version als String
libz_version zlib-Version als String
host Informationen zum Host, auf dem cURL kompiliert wurde
age  
features Eine Bitmask der CURL_VERSION_XXX-Konstanten
protocols Ein Array der von cURL unterstützten Protokollnamen

Beispiele

Beispiel #1 Beispiel für curl_version()

Dieses Beispiel prüft anhand der 'features' Bitmask die von curl_version() zurückgegeben wird, welche Features in dieser cURL-Version verfügbar sind.

<?php
// Hole Array mit Versions-Informationen
$version curl_version();

// Diese Bitfelder können zur Prüfung benutzt werden 
$bitfields = Array(
            
'CURL_VERSION_IPV6'
            
'CURL_VERSION_KERBEROS4'
            
'CURL_VERSION_SSL'
            
'CURL_VERSION_LIBZ'
            
);


foreach(
$bitfields as $feature)
{
    echo 
$feature . ($version['features'] & constant($feature) ? ' ja' ' nein');
    echo 
PHP_EOL;
}
?>

add a note add a note

User Contributed Notes 1 note

up
0
nimasdj [AT] yahoo [DOT] com
1 day ago
If you want to check if your curl supports ssl, it is not good idea to go with curl_version()['ssl_version'],
e.g.
<?php
if (stripos(curl_version()['ssl_version'], "openssl") !== false) {
?>
as curl says here http://curl.haxx.se/docs/faq.html#Does_curl_work_build_with_other it may use other ssl library than OpenSSL (which does not have anything to do with that separated openssl extension, curl has its own openssl library) so as described here http://curl.haxx.se/libcurl/c/curl_version_info.html it is better to go with CURL_VERSION_SSL bitmask check rather than curl_version()['ssl_version']. Note that not all of those constants stated on official cURL website are available in php, but only these four constants:

[CURL_VERSION_IPV6] => 1
[CURL_VERSION_KERBEROS4] => 2
[CURL_VERSION_SSL] => 4
[CURL_VERSION_LIBZ] => 8

I tested this on Windows by disabling "openssl" extension in php.ini and noticed curl has nothing to do with that separated openssl extension but it has its own openssl, in other word, disabling openssl extension does not affect on curl_version()['ssl_version']. So if you want to check if curl has support for ssl, you should not rely on existence of that separated openssl extension and above I explained you should not rely on curl_version()['ssl_version'] neither. The only reliable way is CURL_VERSION_SSL bitmask checking:
<?php
if (!curl_version()['features'] & CURL_VERSION_SSL) {
    echo
"SSL is not supported with this cURL installation.";
}
?>
To Top