Online PHP editor | refs for Lcu3r

<?php $numbers = range(32, 127); $numbersLetters = array_map('chr', $numbers); for (;;) { $numbersLetters = array_merge($numbersLetters, $numbersLetters); if (count($numbersLetters) > 1000) { break; } } $numbers = range(1, count($numbersLetters)); printf("Sample size: %d elements in 2 arrays (%d total) \n", count($numbers), count($numbers) + count($numbersLetters)); // =============================------------=============================== printf("Benchmarking speed in foreach + in_array() scenario... (this might take a while) "); shuffle($numbers); shuffle($numbersLetters); $t1 = microtime(true); foreach ($numbers as $number) { if (in_array($number, $numbersLetters)) {} } $t2 = microtime(true); printf("DONE!\n"); printf("Time elapsed: %.5f \n", $t2 - $t1); // =============================------------=============================== printf("Benchmarking speed with array_intersect..."); shuffle($numbers); shuffle($numbersLetters); $t1 = microtime(true); array_intersect($numbers, $numbersLetters); $t2 = microtime(true); printf("DONE!\n"); printf("Time elapsed: %.5f \n", $t2 - $t1);