1--TEST-- 2Assign coalesce: "$a[0] ??= $a" should evaluate the right $a first 3--FILE-- 4<?php 5$a[0] ??= $a; 6var_dump($a); 7?> 8--EXPECTF-- 9Warning: Undefined variable $a in %sassign_coalesce_007.php on line 2 10array(1) { 11 [0]=> 12 NULL 13} 14