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<?php class Mammal { function mate(Mammal $with) { $thisClass = get_class($this); $withClass = get_class($with); $class = substr($thisClass, 0, -rand(1, strlen($thisClass) - 1)) . substr($withClass, rand(1, strlen($withClass) - 1)); eval("class $class extends Mammal {}"); return new $class; } } class Panda extends Mammal {} class Dolphin extends Mammal {} class Squirrel extends Mammal {} class Kangaroo extends Mammal {} $mingmong = new Panda; $charles = new Dolphin; $suqidgy = new Squirrel; $wanger = new Kangaroo; $charlimong = $mingmong->mate($charles); $wangy = $wanger->mate($squidgy); $wangimong = $wanger->mate($charlimong); var_dump($wangimong);
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.26, 7.3.0 - 7.3.13, 7.4.0 - 7.4.1
Notice: Undefined variable: squidgy in /in/oVFcu on line 24 Fatal error: Uncaught TypeError: Argument 1 passed to Mammal::mate() must be an instance of Mammal, null given, called in /in/oVFcu on line 24 and defined in /in/oVFcu:4 Stack trace: #0 /in/oVFcu(24): Mammal->mate(NULL) #1 {main} thrown in /in/oVFcu on line 4
Process exited with code 255.
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Notice: Undefined variable: squidgy in /in/oVFcu on line 24 Catchable fatal error: Argument 1 passed to Mammal::mate() must be an instance of Mammal, null given, called in /in/oVFcu on line 24 and defined in /in/oVFcu on line 4
Process exited with code 255.
Output for 5.1.0 - 5.1.6
Notice: Undefined variable: squidgy in /in/oVFcu on line 24 Fatal error: Argument 1 passed to Mammal::mate() must not be null, called in /in/oVFcu on line 24 and defined in /in/oVFcu on line 4
Process exited with code 255.
Output for 5.0.4 - 5.0.5
Notice: Undefined variable: squidgy in /in/oVFcu on line 24 Fatal error: Argument 1 must not be null in /in/oVFcu on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.3
Notice: Undefined variable: squidgy in /in/oVFcu on line 24 Fatal error: Argument 1 must not be null in /in/oVFcu on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/oVFcu 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
Parse error: parse error, unexpected T_STRING, expecting ')' in /in/oVFcu on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/oVFcu on line 4
Process exited with code 255.
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