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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 |
|---|---|
| 376 | * |
| 377 | * @global int $content_width Content width. |
| 378 | * |
| 379 | * @return void |
| 380 | */ |
| 381 | function twenty_twenty_one_content_width() { |
| 382 | // This variable is intended to be overruled from themes. |
| 383 | // Open WPCS issue: {@link https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards/issues/1043}. |
| 384 | // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedVariableFound |
| 385 | $GLOBALS['content_width'] = apply_filters( 'twenty_twenty_one_content_width', 750 ); |
| 386 | } |
| 387 | add_action( 'after_setup_theme', 'twenty_twenty_one_content_width', 0 ); |
| 388 | |
| 389 | /** |
| 390 | * Enqueue scripts and styles. |
| 391 | * |
| 392 | * @since Twenty Twenty-One 1.0 |
| 393 | * |
| 394 | * @return void |