- strpos: documentation ( source)
- phpversion: documentation ( source)
- print_r: documentation ( source)
- array_keys: documentation ( source)
- timezone_abbreviations_list: documentation ( source)
<?php
$pos = strpos('PHP 5.6.10', phpversion());
echo phpversion();
if($pos !== false){
print "<pre>";
$arr = timezone_abbreviations_list();
print_r(array_keys($arr)); die;
}
?>