时间:2021-07-01 10:21:17 帮助过:77人阅读
php中比较两个字符串是否相等,==和strcmp( ) 哪个效率高?
0){
$i--;
if($a==$b) ;
}
$time2 = microtime(true);
while($j>0){
$j--;
if(strcmp($a,$b));
}
$time3 = microtime(true);
echo ($time2 - $time1)."\n";
echo ($time3 - $time2);
//result
//$ php demo.php
//1.9449820518494
//7.9897949695587
肯定是== 效率高,因为运算符比函数调用省内存。