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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 |
---|---|
5333 |
|
5334 | /** |
5335 | * Filters a sanitized text field string. |
5336 | * |
5337 | * @since 2.9.0 |
5338 | * |
5339 | * @param string $filtered The sanitized string. |
5340 | * @param string $str The string prior to being sanitized. |
5341 | */ |
5342 | return apply_filters( 'sanitize_text_field', $filtered, $str ); |
5343 | } |
5344 |
|
5345 | /** |
5346 | * Sanitizes a multiline string from user input or from the database. |
5347 | * |
5348 | * The function is like sanitize_text_field(), but preserves |
5349 | * new lines (\n) and other whitespace, which are legitimate |
5350 | * input in textarea elements. |
5351 | * |