- var_dump: documentation ( source)
- version_compare: documentation ( source)
<?php
$_wp_version = '3.8';
$a = version_compare( $_wp_version, '3.8', '<' );
var_dump($a);
$_wp_version = '3.4';
$a = version_compare( $_wp_version, '3.8', '<' );
var_dump($a);
$_wp_version = '3.7.1';
$a = version_compare( $_wp_version, '3.8', '<' );
var_dump($a);
$_wp_version = '3.9';
$a = version_compare( $_wp_version, '3.8', '<' );
var_dump($a);