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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 |
---|---|
6905 |
|
6906 | if ( ! did_action( 'wp_loaded' ) ) { |
6907 | /** |
6908 | * Filters the list of protocols allowed in HTML attributes. |
6909 | * |
6910 | * @since 3.0.0 |
6911 | * |
6912 | * @param string[] $protocols Array of allowed protocols e.g. 'http', 'ftp', 'tel', and more. |
6913 | */ |
6914 | $protocols = array_unique( (array) apply_filters( 'kses_allowed_protocols', $protocols ) ); |
6915 | } |
6916 |
|
6917 | return $protocols; |
6918 | } |
6919 |
|
6920 | /** |
6921 | * Returns a comma-separated string or array of functions that have been called to get |
6922 | * to the current point in code. |
6923 | * |