- array_map: documentation ( source)
- usleep: documentation ( source)
- microtime: documentation ( source)
- array_fill: documentation ( source)
<?php
function someOp($i) {
usleep(1);
return $i;
}
$arr = array_fill(0, 1000, '');
$newarr = [];
$start_time = microtime(true);
$newarr = array_map('someOp', $arr);
$time = microtime(true) - $start_time;
echo $time."\n";