- substr: documentation ( source)
- microtime: documentation ( source)
- var_export: documentation ( source)
- printf: documentation ( source)
<?php
$test = function()
{
$p = 'abcde';
$c = 'abc';
var_export(substr($p, 0, strlen($c)) == $c, true);
};
$s = microtime(1);
for ($i =0; $i < 100; $i++) {
$test();
}
echo printf('%2f', microtime(1) - $s);