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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 |
---|---|
335 | * |
336 | * @since 3.5.0 |
337 | * |
338 | * @param mixed $override Value to return instead of saving. Default null. |
339 | * @param string $filename Name of the file to be saved. |
340 | * @param WP_Image_Editor $image WP_Image_Editor instance. |
341 | * @param string $mime_type Image mime type. |
342 | * @param int $post_id Post ID. |
343 | */ |
344 | $saved = apply_filters( 'wp_save_image_editor_file', null, $filename, $image, $mime_type, $post_id ); |
345 |
|
346 | if ( null !== $saved ) { |
347 | return $saved; |
348 | } |
349 |
|
350 | return $image->save( $filename, $mime_type ); |
351 | } else { |
352 | /* translators: 1: $image, 2: WP_Image_Editor */ |
353 | _deprecated_argument( __FUNCTION__, '3.5.0', sprintf( __( '%1$s needs to be a %2$s object.' ), '$image', 'WP_Image_Editor' ) ); |