PHP simple fetch and judge the method of the source of the submission PHP calls the parent class method PHP calls the class method PHP functions and methods of the area

This paper presents a simple method for PHP to obtain and judge the source of the submission. Share to everyone for your reference, as follows:

echo $_server[' Http_referer '];

This gets the URL of the previous page

For example, get:

$url = http://www.weisuyun.com/nihao.html

Other pages submitted to not accept
The code is as follows:

if (Strpos ($url, ' http://www.weisuyun.com ')) {echo ' source is correct ';} Else{echo ' source unknown ';}

The Strpos method returns the position of the specified string where the specified string first appears, no returns false, and the subscript starts at 0

Add:

Stripos () -finds the position of the first occurrence of a string in another string (case insensitive)
Strripos () -finds the last occurrence of a string in another string (case insensitive)
Strrpos () -finds the last occurrence of a string in another string (case-sensitive)

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I hope this article is helpful to you in PHP programming.

The above describes the PHP simple access and determine the source of the method of submission, including PHP, the content of the method, I hope that the PHP tutorial interested in a friend helpful.

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