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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 |
|---|---|
| 2367 | * Escape a HTML tag name. |
| 2368 | * |
| 2369 | * @since 2.5.0 |
| 2370 | * |
| 2371 | * @param string $tag_name |
| 2372 | * @return string |
| 2373 | */ |
| 2374 | function tag_escape($tag_name) { |
| 2375 | $safe_tag = strtolower( preg_replace('/[^a-zA-Z_:]/', '', $tag_name) ); |
| 2376 | return apply_filters('tag_escape', $safe_tag, $tag_name); |
| 2377 | } |
| 2378 | |
| 2379 | /** |
| 2380 | * Escapes text for SQL LIKE special characters % and _. |
| 2381 | * |
| 2382 | * @since 2.5.0 |
| 2383 | * |
| 2384 | * @param string $text The text to be escaped. |
| 2385 | * @return string text, safe for inclusion in LIKE query. |