PHP5中文手册·Gets the current PHP version -- 追寻梦想＞编程乐园＞PHP 编程

说明

string phpversion ([ string $extension ] )

Returns a string containing the version of the currently running PHP parser or extension.

参数

extension: An optional extension name.

返回值

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.

范例

Example#1 phpversion() example


<?php
// 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');
?>

注释

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


	PHP5中文手册 phpinfo putenv PHP Options/Info PHP Manual phpversion (PHP 4, PHP 5) phpversion — Gets the current PHP version 说明 string phpversion ([ string `$extension` ] ) Returns a string containing the version of the currently running PHP parser or extension. 参数 `extension` An optional extension name. 返回值 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. 范例 Example#1 phpversion() example `<?php // 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'); ?>` 注释 Note: This information is also available in the predefined constant `PHP_VERSION`. 参见 version_compare() phpinfo() phpcredits() php_logo_guid() zend_version() phpinfo putenv PHP Options/Info PHP Manual

phpversion

说明

参数

返回值

范例

注释

参见