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<?php class subclass{ public function __construct(){ echo 'sub_class'; } } class baseclass{ public function __construct(){ $this = new subclass(); } } $v = new baseclass(); echo get_class($v);
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.17, 5.5.0
Fatal error: Cannot re-assign $this in /in/YW2XS on line 9
Process exited with code 255.

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