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run code in 200+ php & hhvm versions
Bugs & Features
<?php $formatted = ['foo' => 'bar', 'foo10' => 'bar10'] $formatted = array_change_key_case($formatted, CASE_UPPER); var_dump($formatted);
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.1.7
Parse error: syntax error, unexpected '$formatted' (T_VARIABLE) in /in/XV73M on line 3
Process exited with code 255.
Output for hhvm-3.15.4
Fatal error: Uncaught Error: syntax error, unexpected T_VARIABLE in /in/XV73M:3 Stack trace: #0 {main}
Process exited with code 255.