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<?php function callee(&$obj) { } function caller() { callee($this); } caller();
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Fatal error: Uncaught Error: Using $this when not in object context in /in/QXYLB:8 Stack trace: #0 /in/QXYLB(11): caller() #1 {main} thrown in /in/QXYLB on line 8
Process exited with code 255.

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