PHP: how to prevent external malicious submission and call the ajax interface, phpajax

PHP: how to prevent external malicious submission and call the ajax interface, phpajax

The ajax interface we have written on our own website. If you use it for yourself, you can define the origin domain name and determine the origin.

Note: replace www.jb51.net with your own domain name.

Copy codeThe Code is as follows: // determine the origin
If (! Isset ($ _ SERVER ['HTTP _ referer']) |! Stripos ($ _ SERVER ['HTTP _ referer'], 'www .jb51.net ')){
Echo 'canonical' t access ';
Exit ();
}

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