phpinfo
To know, what are the {php} extensions loaded & version of extensions :
<?php
foreach (get_loaded_extensions() as $i => $ext)
{
echo $ext .' => '. phpversion($ext). '<br/>';
}
?>
phpversion
(PHP 4, PHP 5)
phpversion — Restituisce la versione del PHP
Descrizione
string phpversion
( void
)
Restituisce una stringa contenente la versione dell'interprete PHP.
Nota:
Questa informazione รจ anche disponibile come costante predefinita
PHP_VERSION.
Example #1 Esempio di uso di phpversion()
<?php
// Ad esempio visualizza 'Current PHP version: 4.1.1'
echo 'Current PHP version: ' . phpversion();
?>
Vedere anche version_compare(), phpinfo(), phpcredits(), php_logo_guid() e zend_version().
add a note
User Contributed Notes
phpversion - [6 notes]
pavankumar at tutorvista dot com ¶
2 years ago
bitworks at web dot de ¶
3 years ago
to realize if the actual version ist newer than '5.2.10'
simply use:
<?php
if (strnatcmp(phpversion(),'5.2.10') >= 0)
{
# equal or newer
}
else
{
# not sufficiant
}
?>
dmitry DOT seredinov AT gmail DOT com ¶
4 years ago
To simple receive a major PHP version value (e.g., 5.2), you can use next:
<?php
// Output below will looks like '5.2', depends to your version
echo floatval(phpversion());
?>
cHao ¶
1 month ago
If you're trying to check whether the version of PHP you're running on is sufficient, don't screw around with `strcasecmp` etc. PHP already has a `version_compare` function, and it's specifically made to compare PHP-style version strings.
<?php
if (version_compare(phpversion(), '5.3.10', '<')) {
// php version isn't high enough
}
?>
Sam Yong - hellclanner at live dot com ¶
3 years ago
Take note that if you pass phpversion() with an empty string, eg.
<?php
echo phpversion('');
?>
It will not return anything, since it cannot find an extension with the name string(0) ''.
pl DOT baasch AT skycube DOT net ¶
4 years ago
In a addition to phpversion,..
if you've got a system like ubuntu or some else, you get
<?php
echo phpversion(); // 5.2.4-2ubuntu5.2
?>
To fix this, use the following:
<?php
echo substr(phpversion(),0,strpos(phpversion(), '-'));
?>