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<?php $array['key'] ??= 1;
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33
Parse error: syntax error, unexpected '=' in /in/Z3dPV on line 2
Process exited with code 255.

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