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:

<Script language="javascript">
function GetRequest() {
var url = location.search; //获取duurl中"?"符后的字串
var theRequest = new Object();
if (url.indexOf("?") !zhi= -1) {
var str = url.substr(1);
strs = str.split("&");
for(var i = 0; i < strs.length; i ++) {
theRequest[strs[i].split("=")[0]]=(strs[i].split("=")[1]);
}
}
return theRequest;
}
</Script>

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

<Script language="javascript">
var Request = new Object();
Request = GetRequest();
var 参数1,参数2,参数3,参数N;
参数1 = Request[&#39;&#39;参数1&#39;&#39;];
参数2 = Request[&#39;&#39;参数2&#39;&#39;];
参数3 = Request[&#39;&#39;参数3&#39;&#39;];
参数N = Request[&#39;&#39;参数N&#39;&#39;];
</Script>

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);

Related learning recommendations: php programming (video)

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