PHP text operations to retrieve text

PHP text operations, retrieve text question domain name: http: // localhost/down. php? Add = down/0522/img.png (domain name is random)

$ Img = $ add

Echo $ img;
?>
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$ Img only obtains the image name (img.png)

That is to say, delete (http: // localhost/down? Add = down/0522/) only (img.png)


What to write? Please.

Reply to discussion (solution)

$ Img = basename ($ _ GET ['add']);

$ Img = basename ($ _ GET ['add']);


Thank you. can you tell me how it works? Newbie solving ,,,

Url parameters are obtained through the $ _ GET array, which is the convention of php.
The basename function is used to obtain the file name (that is, remove the path)

Url parameters are obtained through the $ _ GET array, which is the convention of php.
The basename function is used to obtain the file name (that is, remove the path)


Thank you very much.