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<?php $a = array(true, true, true, "a"); echo $a; ehco array_unique((array) $a)[0];
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
Parse error: syntax error, unexpected 'array_unique' (T_STRING) in /in/Ahes3 on line 4
Process exited with code 255.

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