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<?php function coalesce(&...$args) { foreach ($args as &$arg) { if (!empty($arg)) { return $arg; } } return $default; } echo coalesce($happy, false, 'boring', 'default');
Output for 8.3.0 - 8.3.6
Fatal error: Uncaught Error: coalesce(): Argument #2 could not be passed by reference in /in/JAhcY:14 Stack trace: #0 {main} thrown in /in/JAhcY on line 14
Process exited with code 255.
Output for 8.1.23 - 8.1.28, 8.2.10 - 8.2.18
Fatal error: Uncaught Error: coalesce(): Argument #2 cannot be passed by reference in /in/JAhcY:14 Stack trace: #0 {main} thrown in /in/JAhcY on line 14
Process exited with code 255.
Output for 5.4.0 - 5.4.31
Parse error: syntax error, unexpected '.', expecting variable (T_VARIABLE) in /in/JAhcY on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '.', expecting T_VARIABLE in /in/JAhcY on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '.', expecting T_VARIABLE in /in/JAhcY on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_VARIABLE' in /in/JAhcY on line 4
Process exited with code 255.

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