(PHP 3, PHP 4, PHP 5)

phpversion -- Gets the current PHP version


string phpversion ( [string extension] )

Returns a string containing the version of the currently running PHP parser. If the optional extension parameter is specified, phpversion() returns the version of that extension, or FALSE if there is no version information associated or the extension isn't enabled.

Note: This information is also available in the predefined constant PHP_VERSION.

Example 1. phpversion() example

// prints e.g. 'Current PHP version: 4.1.1'
echo 'Current PHP version: ' . phpversion();

// prints e.g. '2.0' or nothing if the extension isn't enabled
echo phpversion('tidy');

See also version_compare(), phpinfo(), phpcredits(), php_logo_guid(), and zend_version().

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