PHP Experience-Get PHP version information and version comparison

Original: PHP Experience-Get PHP version information and version comparison

Accidentally see someone else write a code:

<? PHP if (version_comparephp_version, ">")) {     die ("PHP 5.2 or greater is required!!!" ); }?>

Find the version information to get PHP so simple ~ ~ ~

Php_version is a constant and he can get PHP version information.

Version_compare is a version comparison tool, and of course it can be used as a comparison tool for other versions:

<?PHPif(Version_compare(php_version, ' 6.0.0 ') >= 0) {     Echo' I am at least PHP version 6.0.0, my version: '.php_version. "\ n"; } if(Version_compare(php_version, ' 5.3.0 ') >= 0) {     Echo' I am at least PHP version 5.3.0, my version: '.php_version. "\ n"; } if(Version_compare(php_version, ' 5.0.0 ', ' >= ')) {     Echo' I am using PHP 5, my version: '.php_version. "\ n"; } if(Version_compare(php_version, ' 5.0.0 ', ' < ')) {     Echo' I am using PHP 4, my version: '.php_version. "\ n"; } ?>

PHP Experience-Get PHP version information and version comparison