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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 |
---|---|
3366 | /** |
3367 | * Filters the URL to the includes directory. |
3368 | * |
3369 | * @since 2.8.0 |
3370 | * |
3371 | * @param string $url The complete URL to the includes directory including scheme and path. |
3372 | * @param string $path Path relative to the URL to the wp-includes directory. Blank string |
3373 | * if no path is specified. |
3374 | */ |
3375 | return apply_filters( 'includes_url', $url, $path ); |
3376 | } |
3377 |
|
3378 | /** |
3379 | * Retrieves the URL to the content directory. |
3380 | * |
3381 | * @since 2.6.0 |
3382 | * |
3383 | * @param string $path Optional. Path relative to the content URL. Default empty. |
3384 | * @return string Content URL link with optional path appended. |