phpversion

Function name: phpversion()

Function description: Get the version number of the current PHP.

usage:

 string phpversion ( void )

Example:

 echo "当前PHP版本号是：" . phpversion();

Output:

当前PHP版本号是：7.4.10

Notes:

• This function requires no parameters.
• The returned version number is a string indicating the current version of PHP.
• The format of the version number is usually "major version. minor version. revision", such as "7.4.10".
• If the version number cannot be obtained, the function returns false.
• This function is available in PHP 4 and above.