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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 |
---|---|
4690 | $safe_tag = strtolower( preg_replace( '/[^a-zA-Z0-9_:]/', '', $tag_name ) ); |
4691 | /** |
4692 | * Filters a string cleaned and escaped for output as an HTML tag. |
4693 | * |
4694 | * @since 2.8.0 |
4695 | * |
4696 | * @param string $safe_tag The tag name after it has been escaped. |
4697 | * @param string $tag_name The text before it was escaped. |
4698 | */ |
4699 | return apply_filters( 'tag_escape', $safe_tag, $tag_name ); |
4700 | } |
4701 |
|
4702 | /** |
4703 | * Converts full URL paths to absolute paths. |
4704 | * |
4705 | * Removes the http or https protocols and the domain. Keeps the path '/' at the |
4706 | * beginning, so it isn't a true relative link, but from the web root base. |
4707 | * |
4708 | * @since 2.1.0 |