<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";> <html xmlns="http://www.w3.org/1999/xhtml";> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Test for Tedd</title> </head> <body> <?php # Ok tedd, if you insist .. $iterations = 20000; $test_string = md5('test'); // a 32 character string $test_array = array(); for ($i = 0; $i < $iterations; ++$i) $test_array[] = str_shuffle($test_string); # <--------- Comma ob_start(); $s_t = microtime(true); foreach ($test_array as $array_value) { echo $test_string, $array_value; } $e_t = microtime(true); ob_end_clean(); echo '<p>Comma took: <strong>'.(abs($e_t - $s_t)*1000/$iterations).'</strong> milliseconds on average.</p>'; # <---------- Concatenation ob_start(); $s_t = microtime(true); foreach ($test_array as $array_value) { echo $test_string.$array_value; } $e_t = microtime(true); ob_end_clean(); echo '<p>Concatenation: <strong>'.(abs($e_t - $s_t)*1000/$iterations).'</strong> milliseconds on average.</p>'; # <---------- Interpolation ob_start(); $s_t = microtime(true); foreach ($test_array as $array_value) { echo "{$test_string}{$array_value}"; } $e_t = microtime(true); ob_end_clean(); echo '<p>Interpolation: <strong>'.(abs($e_t - $s_t)*1000/$iterations).'</strong> milliseconds on average.</p>'; # <---------- HereDoc ob_start(); $s_t = microtime(true); foreach ($test_array as $array_value) { echo <<<TEST $test_string$array_value TEST; } $e_t = microtime(true); ob_end_clean(); echo '<p>Heredoc: <strong>'.(abs($e_t - $s_t)*1000/$iterations).'</strong> milliseconds on average.</p>'; /* I usually get results similar to these ones: Comma took: 0.0191585 milliseconds on average. Concatenation: 0.0195376 milliseconds on average. Interpolation: 0.0279227 milliseconds on average. Heredoc: 0.0247411 milliseconds on average. */ ?> </body> </html> -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
