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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 |
---|---|
194 | * Provided for backcompat reasons |
195 | * |
196 | * @param WP_Image_Editor $image |
197 | * @param string $mime_type |
198 | * @param int $post_id |
199 | * @return boolean |
200 | */ |
201 | function wp_stream_image( $image, $mime_type, $post_id ) { |
202 | if ( $image instanceof WP_Image_Editor ) { |
203 | $image = apply_filters('image_editor_save_pre', $image, $post_id); |
204 |
|
205 | if ( is_wp_error( $image->stream( $mime_type ) ) ) |
206 | return false; |
207 |
|
208 | return true; |
209 | } else { |
210 | _deprecated_argument( __FUNCTION__, '3.5', __( '$image needs to be an WP_Image_Editor object' ) ); |
211 |
|
212 | $image = apply_filters('image_save_pre', $image, $post_id); |
Line | Code |
232 | * |
233 | * @param string $filename |
234 | * @param WP_Image_Editor $image |
235 | * @param string $mime_type |
236 | * @param int $post_id |
237 | * @return boolean |
238 | */ |
239 | function wp_save_image_file( $filename, $image, $mime_type, $post_id ) { |
240 | if ( $image instanceof WP_Image_Editor ) { |
241 | $image = apply_filters('image_editor_save_pre', $image, $post_id); |
242 | $saved = apply_filters('wp_save_image_editor_file', null, $filename, $image, $mime_type, $post_id); |
243 |
|
244 | if ( null !== $saved ) |
245 | return $saved; |
246 |
|
247 | return $image->save( $filename, $mime_type ); |
248 | } else { |
249 | _deprecated_argument( __FUNCTION__, '3.5', __( '$image needs to be an WP_Image_Editor object' ) ); |
250 |
|