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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.
This hook occurs 2 times in this file.
Line | Code |
---|---|
197 | * Provided for backcompat reasons |
198 | * |
199 | * @param WP_Image_Editor $image |
200 | * @param string $mime_type |
201 | * @param int $post_id |
202 | * @return boolean |
203 | */ |
204 | function wp_stream_image( $image, $mime_type, $post_id ) { |
205 | if ( $image instanceof WP_Image_Editor ) { |
206 | $image = apply_filters('image_editor_save_pre', $image, $post_id); |
207 |
|
208 | if ( is_wp_error( $image->stream( $mime_type ) ) ) |
209 | return false; |
210 |
|
211 | return true; |
212 | } else { |
213 | _deprecated_argument( __FUNCTION__, '3.5', __( '$image needs to be an WP_Image_Editor object' ) ); |
214 |
|
215 | $image = apply_filters('image_save_pre', $image, $post_id); |
Line | Code |
235 | * |
236 | * @param string $filename |
237 | * @param WP_Image_Editor $image |
238 | * @param string $mime_type |
239 | * @param int $post_id |
240 | * @return boolean |
241 | */ |
242 | function wp_save_image_file( $filename, $image, $mime_type, $post_id ) { |
243 | if ( $image instanceof WP_Image_Editor ) { |
244 | $image = apply_filters('image_editor_save_pre', $image, $post_id); |
245 | $saved = apply_filters('wp_save_image_editor_file', null, $filename, $image, $mime_type, $post_id); |
246 |
|
247 | if ( null !== $saved ) |
248 | return $saved; |
249 |
|
250 | return $image->save( $filename, $mime_type ); |
251 | } else { |
252 | _deprecated_argument( __FUNCTION__, '3.5', __( '$image needs to be an WP_Image_Editor object' ) ); |
253 |
|