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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 |
|---|---|
| 900 | * |
| 901 | * @since 2.3.0 |
| 902 | * |
| 903 | * @param string $string Content to filter through KSES. |
| 904 | * @param array[]|string $allowed_html An array of allowed HTML elements and attributes, |
| 905 | * or a context name such as 'post'. See wp_kses_allowed_html() |
| 906 | * for the list of accepted context names. |
| 907 | * @param string[] $allowed_protocols Array of allowed URL protocols. |
| 908 | */ |
| 909 | return apply_filters( 'pre_kses', $string, $allowed_html, $allowed_protocols ); |
| 910 | } |
| 911 | |
| 912 | /** |
| 913 | * Returns the version number of KSES. |
| 914 | * |
| 915 | * @since 1.0.0 |
| 916 | * |
| 917 | * @return string KSES version number. |
| 918 | */ |