<?php $time_start = microtime(true); $test1 = ''; for($t=0; $t<10; $t++) { for($i=0; $i<255; $i++) { $tmp = unpack('H*', chr($i)); $test1 .= '\\x'.array_shift($tmp); } } $time_end = microtime(true); $time = $time_end - $time_start; echo "$time seconds\n"; $time_start = microtime(true); $test2 = ''; for($t=0; $t<10; $t++) { for($i=0; $i<255; $i++) { $test2 .= '\\x'.str_pad(base_convert($i, 10, 16), 2, 0, STR_PAD_LEFT); } } $time_end = microtime(true); $time = $time_end - $time_start; echo "$time seconds\n"; echo ($test1 === $test2) ? 'OK' : 'NOT OK'; ?>
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