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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 |
|---|---|
| 2671 | * Escape a HTML tag name. |
| 2672 | * |
| 2673 | * @since 2.5.0 |
| 2674 | * |
| 2675 | * @param string $tag_name |
| 2676 | * @return string |
| 2677 | */ |
| 2678 | function tag_escape($tag_name) { |
| 2679 | $safe_tag = strtolower( preg_replace('/[^a-zA-Z0-9_:]/', '', $tag_name) ); |
| 2680 | return apply_filters('tag_escape', $safe_tag, $tag_name); |
| 2681 | } |
| 2682 | |
| 2683 | /** |
| 2684 | * Escapes text for SQL LIKE special characters % and _. |
| 2685 | * |
| 2686 | * @since 2.5.0 |
| 2687 | * |
| 2688 | * @param string $text The text to be escaped. |
| 2689 | * @return string text, safe for inclusion in LIKE query. |