How to get the url before jump in php

php method to get the url before jumping: 1. JAVASCRIPT client method to get the URL with QUESTRING parameter; 2. Regular analysis method, set or get the entire URL as a string, the code is [alert(window. location.href)].

php method to get the url before jump:

1: Get the JAVASCRIPT client of the URL with QUESTRING parameter Solution, equivalent to asp's request.querystring, PHP's $_GET

1. Function:

2. Then get the corresponding parameter value by calling this function:

Use this to obtain the parameter with the same name in the url string

2. Regular analysis method.

function GetQueryString(name) {
var reg = new
RegExp("(^|&)" + name +
"=([^&]*)(&|$)","i");
var r =
window.location.search.substr(1).match(reg);
if (r!=null) return
(r[2]); return null;
}
alert(GetQueryString("参数名1"));
alert(GetQueryString("参数名2"));
alert(GetQueryString("参数名3"));

Other parameter acquisition introduction:

//Set or get the file name or path specified by the object.

alert(window.location.pathname);

//Set or get the entire URL as a string.

alert(window.location.href);

//Set or get the port number associated with the URL.

alert(window.location.port);

//Set or get the protocol part of the URL.

alert(window.location.protocol);

//Set or get the segment after the pound sign "#" in the href attribute.

alert(window.location.hash);

//Set or get the hostname and port number of location or URL.

alert(window.location.host);

//Set or get the part following the question mark in the href attribute.

alert(window.location.search);

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