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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 |
|---|---|
| 517 | * |
| 518 | * @since 1.0.0 |
| 519 | * |
| 520 | * @param string $string Content to filter through kses |
| 521 | * @param array $allowed_html List of allowed HTML elements |
| 522 | * @param array $allowed_protocols Allowed protocol in links |
| 523 | * @return string Filtered content through 'pre_kses' hook |
| 524 | */ |
| 525 | function wp_kses_hook($string, $allowed_html, $allowed_protocols) { |
| 526 | $string = apply_filters('pre_kses', $string, $allowed_html, $allowed_protocols); |
| 527 | return $string; |
| 528 | } |
| 529 | |
| 530 | /** |
| 531 | * This function returns kses' version number. |
| 532 | * |
| 533 | * @since 1.0.0 |
| 534 | * |
| 535 | * @return string KSES Version Number |