<?php function do_action_ref_array( $callback, $args ) { call_user_func_array( $callback, array_slice( $args, 0, 2 ) ); } $function = function( $arg1, &$arg2 ) { var_dump( $arg1, $arg2 ); return $arg1; }; $a = 1; $b = 2; $args = [$a, &$b]; do_action_ref_array( $function, $args );
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