How to jump to different pages in php
How to jump to different pages in php: 1. Jump to the specified page through the header() function; 2. Jump to the specified page through the Meta tag; 3. Jump to the specified page through JavaScript.
The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer
Detailed explanation of several implementation methods of PHP jump page
PHP page jump 1. header() function
The header() function is a very simple method for page jump in PHP. The main function of the header() function is to output the HTTP protocol header (header) to the browser.
The header() function is defined as follows:
void header (string string [,bool replace [,int http_response_code]])
The optional parameter replace specifies 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 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 ":", otherwise it will not jump.
2. There cannot be any output before using the header.
3. The PHP code after the header will also be executed. For example, the code to redirect the browser to the official forum of Lamp Brothers
is as follows:
<?php
//重定向浏览器
header("Location: http://bbs. lampbrother.net");
//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 responsible for providing HTML The tag of document meta information. Using this tag in a PHP program can also achieve page jumps. If http-equiv is defined as refresh, when the page is opened, it will jump to the corresponding page within a certain period of time based on the value specified by content.
If content="seconds;url=website" is set, it defines how long it will take for the page to jump to the specified URL. For example, the meta tag is used to automatically jump to the LAMP Brothers Band official forum after the vaccine is released.
The code is as follows:
<meta http-equiv = "refresh" content = "1;url=http:// bbs.lampbrother.net" >
For example, the following program meta.php implements the page to automatically jump to bbs.lampbrother.net after staying on the page for one second.
The code is as follows:
<?php $url = "http://bbs.lampbrother.net" ; ?> <html> <head> <meta http-equiv = "refresh" content ="1; url = <?php echo $url; ?> "> </head> <body> 页面只停留一秒…… </body> </html>
PHP page jump 3. JavaScript
For example, this code can be placed in any legal position in the program.
The code is as follows:
<?php $ url = "http://bbs.lampbrother.net" ; echo " <script language = 'javascript' type = 'text/javascript' > "; echo " window.location.href = '$url' "; echo " </script > "; ?>
Recommended learning: "PHP Video Tutorial"
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