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Source View: wp_create_thumbnail

To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).

Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: apply_filters( "hook_name", "what_to_filter" ).

Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.

Source View

Line Code
18  * @param mixed $file Filename of the original image, Or attachment id.
19  * @param int $max_side Maximum length of a single side for the thumbnail.
20  * @param mixed $deprecated Never used.
21  * @return string Thumbnail path on success, Error string on failure.
22  */
23 function wp_create_thumbnail( $file, $max_side, $deprecated = '' ) {
24      if ( !empty( $deprecated ) )
25           _deprecated_argument( __FUNCTION__, '1.2' );
26      $thumbpath = image_resize( $file, $max_side, $max_side );
27      return apply_filters( 'wp_create_thumbnail', $thumbpath );
28 }
29
30 /**
31  * Crop an Image to a given size.
32  *
33  * @since 2.1.0
34  *
35  * @param string|int $src_file The source file or Attachment ID.
36  * @param int $src_x The start x position to crop from.