Online PHP editor | refs for Ce3l0

<?php $iterations = 10000; $options = array('apple', 'banana', 'carrot' ,'date', 'endive'); $color = NULL; // Fill an array with random keys. This ensures // that (a) we use the same keys, and (b) // slowness in the randomizer doesn't impact the // loops (which can happen if entropy collection kicks in) $samples = array(); for ($i = 0; $i < $iterations; ++$i) { $samples[] = $options[rand(0, 4)]; } // Test a switch statement. $start_switch = microtime(TRUE); for ($i = 0; $i < $iterations; ++$i) { $option = $samples[$i]; switch ($option) { case 'apple': $color = 'red'; break; case 'banana': $color = 'yellow'; break; case 'carrot': $color = 'orange'; break; case 'date': $color = 'brown'; break; case 'endive': $color = 'green'; break; } } $end_switch = microtime(TRUE); $total_switch = $end_switch - $start_switch; printf("Switch:\t%0.6f sec to process %d" . PHP_EOL, $total_switch, $iterations); // Test an array lookup. $start_map = microtime(TRUE); for ($i = 0; $i < $iterations; ++$i) { $map = array( 'apple' => 'red', 'banana' => 'yellow', 'carrot' => 'orange', 'date' => 'brown', 'endive' => 'green' ); $color = $map[$samples[$i]]; } $end_map = microtime(TRUE); $total_map = $end_map - $start_map; printf("Map:\t%0.6f sec to process %d" . PHP_EOL, $total_map, $iterations);