执行时间 php计算函数的执行时间
php计算函数的执行时间 [代码片段(15行)]
<?php $long_str = "this is a test to see how much time md5 function takes to execute over this string"; // start timing from here $start = microtime(true); // function to test $md5 = md5($long_str); $elapsed = microtime(true) - $start; echo "That took $elapsed seconds.\n"; ?>
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