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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 |
---|---|
2392 | * Escape a HTML tag name. |
2393 | * |
2394 | * @since 2.5.0 |
2395 | * |
2396 | * @param string $tag_name |
2397 | * @return string |
2398 | */ |
2399 | function tag_escape($tag_name) { |
2400 | $safe_tag = strtolower( preg_replace('/[^a-zA-Z_:]/', '', $tag_name) ); |
2401 | return apply_filters('tag_escape', $safe_tag, $tag_name); |
2402 | } |
2403 |
|
2404 | /** |
2405 | * Escapes text for SQL LIKE special characters % and _. |
2406 | * |
2407 | * @since 2.5.0 |
2408 | * |
2409 | * @param string $text The text to be escaped. |
2410 | * @return string text, safe for inclusion in LIKE query. |