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Source View: wp_save_image_file

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
211                header('Content-Type: image/gif');
212                return imagegif($image);
213           default:
214                return false;
215      }
216 }
217
218 function wp_save_image_file($filename, $image, $mime_type, $post_id) {
219      $image = apply_filters('image_save_pre', $image, $post_id);
220      $saved = apply_filters('wp_save_image_file', null, $filename, $image, $mime_type, $post_id);
221      if ( null !== $saved )
222           return $saved;
223
224      switch ( $mime_type ) {
225           case 'image/jpeg':
226                return imagejpeg( $image, $filename, apply_filters( 'jpeg_quality', 90, 'edit_image' ) );
227           case 'image/png':
228                return imagepng($image, $filename);
229           case 'image/gif':