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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 |
|---|---|
| 1738 | * @param string $path Optional. Path relative to the includes url. |
| 1739 | * @return string Includes url link with optional path appended. |
| 1740 | */ |
| 1741 | function includes_url($path = '') { |
| 1742 | $url = site_url() . '/' . WPINC . '/'; |
| 1743 | |
| 1744 | if ( !empty($path) && is_string($path) && strpos($path, '..') === false ) |
| 1745 | $url .= ltrim($path, '/'); |
| 1746 | |
| 1747 | return apply_filters('includes_url', $url, $path); |
| 1748 | } |
| 1749 | |
| 1750 | /** |
| 1751 | * Retrieve the url to the content directory. |
| 1752 | * |
| 1753 | * @package WordPress |
| 1754 | * @since 2.6.0 |
| 1755 | * |
| 1756 | * @param string $path Optional. Path relative to the content url. |