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PHP page Jump mode

2022-07-24 20:26:00 【Yu Lei [xingshuo century]】

The first way ：header()

header() The main function is to HTTP Protocol header (header) Output to browser .
grammar ：

void header ( string $string [, bool $replace = true [, int $http_response_code ]] )

Optional parameters replace Indicate whether to replace the previous similar header or add a header of the same type , The default is replace .
The second optional parameter http_response_code Force will HTTP The corresponding code is set to the specified value . header Function Location The header of type is a special header call , Commonly used to achieve page Jump . Be careful ：1.location and “:” No spaces between numbers , Otherwise, they won't jump .

give an example ：

<html>

<?php

/* This will give an error. Note the output

* above, which is before the header() call */

header('Location: http://www.example.com/');

exit;

?>

Be careful ：

header No output before execution
location and : There must be no space between them
header After php The code also executes , So pay attention to the use exit;

The second way ：meta label

Meta The label is HTML The label responsible for providing document meta information in , stay PHP Use this label in the program , You can also realize page Jump . If defined http-equiv by refresh, The page will be opened according to content The specified value jumps to the corresponding page within a certain time .

< meta http-equiv="refresh"

content="1;url=http://

www.baidu.com">