Get URL file name suffix

To be as efficient as possible, retrieve the file extension from a standard url, and then extend the code to get other data, such as directory path, the principle is to use the explode function of PHP to separate strings.
Example: http://www.abc.com/abc/de/fg.php? Id = 1 need to retrieve php or. php
It is very easy to look at the Code directly.

Copy codeThe Code is as follows:
<? Php
$ Url = "http://www.abc.com/abc/de/fg.php? Id = 1 ";

// This is self-written.
Function getUrl ($ url ){
$ Date = explode ('? ', $ Url );
$ Date = basename ($ date [0]);
$ Date = explode ('.', $ date );
Return $ date [1];
}

Var_dump (getUrl ($ url ));

// The following two are obtained online.
Function getExt ($ url ){
$ Arr = parse_url ($ url );

$ File = basename ($ arr ['path']);
$ Ext = explode (".", $ file );
Return $ ext [1];
}

Var_dump (getExt ($ url ));

 

Function getName ($ url ){

$ W_param = pathinfo ($ url );

$ Str = $ w_param ['extension'];

List ($ type, $ vars) = explode ('? ', $ Str );

Return $ type;

}
Echo 'start3'. date ("Y-m-d H: I: s ");
?>