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<?php $x = 'a'; $b = 8; $c = 25; echo '1: '; echo (null ?? $x.'_1')."\n"; echo '2: '; echo ('notnull' ?? $x.'_1')."\n"; echo '3: '; echo ('notnull' ?? ($x.'_1'))."\n"; echo '4: '; echo ('notnull' ?? $b + 1)."\n"; echo '5: '; echo ('notnull' ?? $c > 1)."\n"; echo '6: '; echo ('notnull' ?? $b || $c)."\n"; echo ('7: '. 1 + $c ?? 2 + $b ?? 3); echo "\n"; echo '8: '. 1 + null ?? 2 + $b ?? 3; echo "\n";
Output for git.master, git.master_jit, rfc.property-hooks
1: a_1 2: notnull 3: notnull 4: notnull 5: notnull 6: notnull 7: 26 8: 1

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