php字符截取
substr(变量, 0,506)
生成json<?php $arr=array(); //定义空数组 $one="111"; $two="222"; arra...
用substr函数实现substr(md5(变量),8,16);就可以实现默认的md5(变量)输出的是32位加密方法...
<?php $cars=$_POST['shuju'];$cars=explode(',', $cars);print_r($cars)&n...
需要用到PHP自带函数chr()方法如下:$string=str_replace(chr(0x01),"",$string);...
$conn=new sqlhelper;for ($i = 0; $i <1000 ; $i++) {$sql="insert into system_user(user_shenfe...
https://windows.php.net/downloads/releases/archives/...