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Three ways to force jump in php

藏色散人

Aug 12, 2020 am 09:45 AM

phpJump

How to force jump in php: 1. Realize the jump through the header function; 2. Use the Meta tag to realize the jump. The statement is ""; 3. Use JavaScript to achieve the jump.

Three ways to force jump in php

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Three ways of PHP page jump

PHP page jump 1. header() function

header() function It is a very simple method to jump to pages in PHP. The main function of the header() function is to output the HTTP protocol header (header) to the browser.

The definition of the header() function is as follows:

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

The optional parameter replace indicates whether to replace the previous similar header or add a header of the same type. The default is replacement.

The second optional parameter http_response_code forces the HTTP corresponding code Set to the specified value. The Location type header in the header function is a special header call, often used to implement page jumps. Note: 1. There cannot be a space between location and the ":" sign, otherwise the jump will not occur.

2. There cannot be any output before using the header.

3. The PHP code after the header will also be executed. For example,

< ?php 
//重定向浏览器 
header("Location: http://blog.csdn.net/abandonship"); 
//确保重定向后，后续代码不会被执行 
exit;
?>

PHP page jump 2. Meta tag

Meta tag is a tag in HTML responsible for providing document meta-information. Using this tag in a PHP program can also achieve page jump. If http is defined -equiv is refresh, then when the page is opened, it will jump to the corresponding page within a certain period of time according to the value specified by content. If content="seconds;url=website" is set, it defines how long the page will jump after. Go to the specified URL.

< meta http-equiv="refresh" content="1;url=http://blog.csdn.net/abandonship">

For example, the following program meta.php realizes that the page will automatically jump after staying on the page for one second.

<?php   
$url = "http://blog.csdn.net/abandonship"; 
?> 
<html>   
<head>   
<meta http-equiv="refresh" content="1;url=<?php echo $url; ?>">   
</head>   
<body> 
It&#39;s transit station.
</body>
</html>

PHP page jump 3. JavaScript

<?php  
$url = "http://blog.csdn.net/abandonship";
echo "<script type=&#39;text/javascript&#39;>";
echo "window.location.href=&#39;$url&#39;";
echo "</script>"; 
?>

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