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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 |
|---|---|
| 4024 | $safe_tag = strtolower( preg_replace('/[^a-zA-Z0-9_:]/', '', $tag_name) ); |
| 4025 | /** |
| 4026 | * Filters a string cleaned and escaped for output as an HTML tag. |
| 4027 | * |
| 4028 | * @since 2.8.0 |
| 4029 | * |
| 4030 | * @param string $safe_tag The tag name after it has been escaped. |
| 4031 | * @param string $tag_name The text before it was escaped. |
| 4032 | */ |
| 4033 | return apply_filters( 'tag_escape', $safe_tag, $tag_name ); |
| 4034 | } |
| 4035 | |
| 4036 | /** |
| 4037 | * Convert full URL paths to absolute paths. |
| 4038 | * |
| 4039 | * Removes the http or https protocols and the domain. Keeps the path '/' at the |
| 4040 | * beginning, so it isn't a true relative link, but from the web root base. |
| 4041 | * |
| 4042 | * @since 2.1.0 |