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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 |
---|---|
2331 | * Escape a HTML tag name. |
2332 | * |
2333 | * @since 2.5.0 |
2334 | * |
2335 | * @param string $tag_name |
2336 | * @return string |
2337 | */ |
2338 | function tag_escape($tag_name) { |
2339 | $safe_tag = strtolower( preg_replace('/[^a-zA-Z_:]/', '', $tag_name) ); |
2340 | return apply_filters('tag_escape', $safe_tag, $tag_name); |
2341 | } |
2342 |
|
2343 | /** |
2344 | * Escapes text for SQL LIKE special characters % and _. |
2345 | * |
2346 | * @since 2.5.0 |
2347 | * |
2348 | * @param string $text The text to be escaped. |
2349 | * @return string text, safe for inclusion in LIKE query. |