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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 |
---|---|
3253 | /** |
3254 | * Filters the URL to the includes directory. |
3255 | * |
3256 | * @since 2.8.0 |
3257 | * |
3258 | * @param string $url The complete URL to the includes directory including scheme and path. |
3259 | * @param string $path Path relative to the URL to the wp-includes directory. Blank string |
3260 | * if no path is specified. |
3261 | */ |
3262 | return apply_filters( 'includes_url', $url, $path ); |
3263 | } |
3264 |
|
3265 | /** |
3266 | * Retrieves the URL to the content directory. |
3267 | * |
3268 | * @since 2.6.0 |
3269 | * |
3270 | * @param string $path Optional. Path relative to the content URL. Default empty. |
3271 | * @return string Content URL link with optional path appended. |