PHP: array_count_values - Manual

byron at byronrode dot co dot za, here are some benchmarks. <?php $haystack = Array(); for ($i = 0; $i < 1000000; $i++) { $haystack[] = rand(1, 2000); } $needle = rand(1, 2000); echo "__array_count_values()__\n"; $start = microtime(true); $startmem = memory_get_usage(); $counts = array_count_values($haystack); $mem = memory_get_usage()-$startmem; echo 'Count:'.$counts[$need