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run code in 300+ PHP versions simultaneously
<?php $formatted = ['foo' => 'bar', 'foo10' => 'bar10'] $formatted = array_change_key_case($formatted, CASE_UPPER); var_dump($formatted);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
Parse error: syntax error, unexpected '$formatted' (T_VARIABLE) in /in/XV73M on line 3
Process exited with code 255.
preferences:
171.88 ms | 1399 KiB | 36 Q