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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 |
---|---|
6611 |
|
6612 | if ( ! did_action( 'wp_loaded' ) ) { |
6613 | /** |
6614 | * Filters the list of protocols allowed in HTML attributes. |
6615 | * |
6616 | * @since 3.0.0 |
6617 | * |
6618 | * @param string[] $protocols Array of allowed protocols e.g. 'http', 'ftp', 'tel', and more. |
6619 | */ |
6620 | $protocols = array_unique( (array) apply_filters( 'kses_allowed_protocols', $protocols ) ); |
6621 | } |
6622 |
|
6623 | return $protocols; |
6624 | } |
6625 |
|
6626 | /** |
6627 | * Return a comma-separated string of functions that have been called to get |
6628 | * to the current point in code. |
6629 | * |