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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 |
|---|---|
| 206 | } |
| 207 | |
| 208 | /** |
| 209 | * Filter Twenty Seventeen content width of the theme. |
| 210 | * |
| 211 | * @since Twenty Seventeen 1.0 |
| 212 | * |
| 213 | * @param $content_width integer |
| 214 | */ |
| 215 | $GLOBALS['content_width'] = apply_filters( 'twentyseventeen_content_width', $content_width ); |
| 216 | } |
| 217 | add_action( 'after_setup_theme', 'twentyseventeen_content_width', 0 ); |
| 218 | |
| 219 | /** |
| 220 | * Register custom fonts. |
| 221 | */ |
| 222 | function twentyseventeen_fonts_url() { |
| 223 | $fonts_url = ''; |
| 224 | |