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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 |
|---|---|
| 2248 | * Escape a HTML tag name. |
| 2249 | * |
| 2250 | * @since 2.5.0 |
| 2251 | * |
| 2252 | * @param string $tag_name |
| 2253 | * @return string |
| 2254 | */ |
| 2255 | function tag_escape($tag_name) { |
| 2256 | $safe_tag = strtolower( preg_replace('/[^a-zA-Z_:]/', '', $tag_name) ); |
| 2257 | return apply_filters('tag_escape', $safe_tag, $tag_name); |
| 2258 | } |
| 2259 | |
| 2260 | /** |
| 2261 | * Escapes text for SQL LIKE special characters % and _. |
| 2262 | * |
| 2263 | * @since 2.5.0 |
| 2264 | * |
| 2265 | * @param string $text The text to be escaped. |
| 2266 | * @return string text, safe for inclusion in LIKE query. |