php base64img to file

1function base64_to_jpeg($base64_string, $output_file) {
2    // open the output file for writing
3    $ifp = fopen( $output_file, 'wb' ); 
4
5    // split the string on commas
6    // $data[ 0 ] == "data:image/png;base64"
7    // $data[ 1 ] == <actual base64 string>
8    $data = explode( ',', $base64_string );
9
10    // we could add validation here with ensuring count( $data ) > 1
11    fwrite( $ifp, base64_decode( $data[ 1 ] ) );
12
13    // clean up the file resource
14    fclose( $ifp ); 
15
16    return $output_file; 
17}