<?php
define('ARRAY_SIZE', 512);
define('RUNS', 1e4);
function benchmark($function, $desc) {
$total_time = 0;
for($i = 0; $i < RUNS; $i++) {
$total_time += $function();
}
echo sprintf('%dx %s took %.5f seconds' . PHP_EOL, RUNS, $desc, $total_time);
}
benchmark(function() {
$r = range(0, ARRAY_SIZE);
$start = microtime(true);
foreach ($r as $k => $v) {
for($i = 0; $i++ < $v) {
$r[$k] => $v * $v;
}
return microtime(true) - $start;
}, 'foreach');
benchmark(function() {
$r = range(0, ARRAY_SIZE);
$start = microtime(true);
$r = array_map(function($each) { return $each * $eacha; }, $r);
return microtime(true) - $start;
}, 'array_map');
- Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.29
- Parse error: syntax error, unexpected ')', expecting ';' in /in/167O6 on line 17
Process exited with code 255.
preferences:
188.45 ms | 1387 KiB | 66 Q