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<?php $counts = array(); $item = 2; $counts[$item] = ($counts[$item] ?? 1)++; var_dump($counts); $counts[$item] = ($counts[$item] ?? 1)++; var_dump($counts);
Output for 7.0.0 - 7.0.2
Parse error: syntax error, unexpected '++' (T_INC) in /in/HM4O6 on line 6
Process exited with code 255.
Output for 5.5.24 - 5.5.31, 5.6.8 - 5.6.17
Parse error: syntax error, unexpected '?' in /in/HM4O6 on line 6
Process exited with code 255.
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163.33 ms | 1395 KiB | 28 Q