http://blog.csdn.net/eflyq/article/details/19130141...

<?PHP$t1=microtime(true);for($i=1;$i<=1000;$i++){echo$i."*";}echo"<br>";$t2=microtime(true);echo$t1."<br>";echo$t2."<br>";echo"消耗时间：".ro...

<?php/*1.对象本身不能直接当函数用，如果被当做函数用，会直接回调__invoke方法*2.验证变量的内容能否作为函数调用*3.try{}catch(Exception$e){}catch(){}finally{}*4.microtime()函数返回当前时间戳和微妙数**/classhttpExceptio...

<?php$b_time=microtime(true);$a=array("1","2","1","2","1","2","1","2","1","2","1","2","2","1","2","1","2","1","2","1","2","1","2","2","1","2","1","2","1","2"...