- var_dump: documentation ( source)
- version_compare: documentation ( source)
<?php
my_version_compare("2.5.1", "2.5.2"); # => -1 (smaller)
my_version_compare("2.5.2", "2.5.2"); # => 0 (equal)
my_version_compare("2.5.5", "2.5.2"); # => 1 (bigger)
my_version_compare("2.5.11", "2.5.2"); # => 1 (bigger, eleven is bigger than two)
function my_version_compare($version1, $version2) {
var_dump(version_compare($version1, $version2));
}