<?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) - $start;
}, 'array_map');
- Output for 5.4.0 - 5.4.29
- Parse error: syntax error, unexpected '$v' (T_VARIABLE), expecting ';' in /in/ordOJ on line 17
Process exited with code 255. - Output for 5.3.0 - 5.3.28
- Parse error: syntax error, unexpected T_VARIABLE, expecting ';' in /in/ordOJ on line 17
Process exited with code 255. - Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
- Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/ordOJ on line 13
Process exited with code 255. - Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
- Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/ordOJ on line 13
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error, expecting `')'' in /in/ordOJ on line 13
Process exited with code 255.
preferences:
239.33 ms | 1395 KiB | 119 Q