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run code in 150+ php & hhvm versions
Bugs & Features
<?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 - 5.4.29
Parse error: syntax error, unexpected ')', expecting ';' in /in/167O6 on line 17
Process exited with code 255.