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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 |
---|---|
4705 | $safe_tag = strtolower( preg_replace( '/[^a-zA-Z0-9_:]/', '', $tag_name ) ); |
4706 | /** |
4707 | * Filters a string cleaned and escaped for output as an HTML tag. |
4708 | * |
4709 | * @since 2.8.0 |
4710 | * |
4711 | * @param string $safe_tag The tag name after it has been escaped. |
4712 | * @param string $tag_name The text before it was escaped. |
4713 | */ |
4714 | return apply_filters( 'tag_escape', $safe_tag, $tag_name ); |
4715 | } |
4716 |
|
4717 | /** |
4718 | * Converts full URL paths to absolute paths. |
4719 | * |
4720 | * Removes the http or https protocols and the domain. Keeps the path '/' at the |
4721 | * beginning, so it isn't a true relative link, but from the web root base. |
4722 | * |
4723 | * @since 2.1.0 |