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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 |
|---|---|
| 195 | * Sets Image Compression quality on a 1-100% scale. |
| 196 | * |
| 197 | * @since 3.5.0 |
| 198 | * @access public |
| 199 | * |
| 200 | * @param int $quality Compression Quality. Range: [1,100] |
| 201 | * @return boolean |
| 202 | */ |
| 203 | public function set_quality( $quality ) { |
| 204 | $this->quality = apply_filters( 'wp_editor_set_quality', $quality ); |
| 205 | |
| 206 | return ( (bool) $this->quality ); |
| 207 | } |
| 208 | |
| 209 | /** |
| 210 | * Returns preferred mime-type and extension based on provided |
| 211 | * file's extension and mime, or current file's extension and mime. |
| 212 | * |
| 213 | * Will default to $this->default_mime_type if requested is not supported. |