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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 |
---|---|
4528 | $safe_tag = strtolower( preg_replace( '/[^a-zA-Z0-9_:]/', '', $tag_name ) ); |
4529 | /** |
4530 | * Filters a string cleaned and escaped for output as an HTML tag. |
4531 | * |
4532 | * @since 2.8.0 |
4533 | * |
4534 | * @param string $safe_tag The tag name after it has been escaped. |
4535 | * @param string $tag_name The text before it was escaped. |
4536 | */ |
4537 | return apply_filters( 'tag_escape', $safe_tag, $tag_name ); |
4538 | } |
4539 |
|
4540 | /** |
4541 | * Convert full URL paths to absolute paths. |
4542 | * |
4543 | * Removes the http or https protocols and the domain. Keeps the path '/' at the |
4544 | * beginning, so it isn't a true relative link, but from the web root base. |
4545 | * |
4546 | * @since 2.1.0 |