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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 |
|---|---|
| 209 | */ |
| 210 | public function set_quality( $quality ) { |
| 211 | /** |
| 212 | * Filter the default quality setting. |
| 213 | * |
| 214 | * @since 3.5.0 |
| 215 | * |
| 216 | * @param int $quality Quality level between 0 (low) and 100 (high). |
| 217 | */ |
| 218 | $this->quality = apply_filters( 'wp_editor_set_quality', $quality ); |
| 219 | |
| 220 | return ( (bool) $this->quality ); |
| 221 | } |
| 222 | |
| 223 | /** |
| 224 | * Returns preferred mime-type and extension based on provided |
| 225 | * file's extension and mime, or current file's extension and mime. |
| 226 | * |
| 227 | * Will default to $this->default_mime_type if requested is not supported. |