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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 |
|---|---|
| 6892 | |
| 6893 | if ( ! did_action( 'wp_loaded' ) ) { |
| 6894 | /** |
| 6895 | * Filters the list of protocols allowed in HTML attributes. |
| 6896 | * |
| 6897 | * @since 3.0.0 |
| 6898 | * |
| 6899 | * @param string[] $protocols Array of allowed protocols e.g. 'http', 'ftp', 'tel', and more. |
| 6900 | */ |
| 6901 | $protocols = array_unique( (array) apply_filters( 'kses_allowed_protocols', $protocols ) ); |
| 6902 | } |
| 6903 | |
| 6904 | return $protocols; |
| 6905 | } |
| 6906 | |
| 6907 | /** |
| 6908 | * Returns a comma-separated string or array of functions that have been called to get |
| 6909 | * to the current point in code. |
| 6910 | * |