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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 |
---|---|
3679 | $callback = apply_filters( 'wp_die_json_handler', '_json_wp_die_handler' ); |
3680 | } elseif ( defined( 'REST_REQUEST' ) && REST_REQUEST && wp_is_jsonp_request() ) { |
3681 | /** |
3682 | * Filters the callback for killing WordPress execution for JSONP REST requests. |
3683 | * |
3684 | * @since 5.2.0 |
3685 | * |
3686 | * @param callable $callback Callback function name. |
3687 | */ |
3688 | $callback = apply_filters( 'wp_die_jsonp_handler', '_jsonp_wp_die_handler' ); |
3689 | } elseif ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) { |
3690 | /** |
3691 | * Filters the callback for killing WordPress execution for XML-RPC requests. |
3692 | * |
3693 | * @since 3.4.0 |
3694 | * |
3695 | * @param callable $callback Callback function name. |
3696 | */ |
3697 | $callback = apply_filters( 'wp_die_xmlrpc_handler', '_xmlrpc_wp_die_handler' ); |