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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
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.
Line | Code |
---|---|
308 | * |
309 | * @since 3.5.0 |
310 | * |
311 | * @param mixed $override Value to return instead of saving. Default null. |
312 | * @param string $filename Name of the file to be saved. |
313 | * @param WP_Image_Editor $image WP_Image_Editor instance. |
314 | * @param string $mime_type Image mime type. |
315 | * @param int $post_id Post ID. |
316 | */ |
317 | $saved = apply_filters( 'wp_save_image_editor_file', null, $filename, $image, $mime_type, $post_id ); |
318 |
|
319 | if ( null !== $saved ) |
320 | return $saved; |
321 |
|
322 | return $image->save( $filename, $mime_type ); |
323 | } else { |
324 | _deprecated_argument( __FUNCTION__, '3.5.0', __( '$image needs to be an WP_Image_Editor object' ) ); |
325 |
|
326 | /** This filter is documented in wp-admin/includes/image-edit.php */ |