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<?php $obj = new stdClass(); $obj->bar = "xyz"; $data = array("foo" => "bar"); $key = "foo"; $obj->${'data'[$key]}; // Syntax error $obj->{$data[$key]}; // Works $obj->${'key'}; // E_NOTICE. Does not work $obj->{$key}; // Works
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/SD2cC:7 Stack trace: #0 {main} thrown in /in/SD2cC on line 7
Process exited with code 255.
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Warning: Illegal string offset 'foo' in /in/SD2cC on line 7 Notice: Undefined variable: d in /in/SD2cC on line 7 Notice: Undefined property: stdClass::$ in /in/SD2cC on line 7 Notice: Undefined property: stdClass::$foo in /in/SD2cC on line 10 Notice: Undefined property: stdClass::$foo in /in/SD2cC on line 11
Output for 7.3.32 - 7.3.33
Warning: Illegal string offset 'foo' in /in/SD2cC on line 7
Output for 7.0.0 - 7.0.20
Warning: Illegal string offset 'foo' in /in/SD2cC on line 7 Notice: Undefined variable: d in /in/SD2cC on line 7 Fatal error: Uncaught Error: Cannot access empty property in /in/SD2cC:7 Stack trace: #0 {main} thrown in /in/SD2cC on line 7
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Warning: Illegal string offset 'foo' in /in/SD2cC on line 7 Notice: Undefined variable: d in /in/SD2cC on line 7 Fatal error: Cannot access empty property in /in/SD2cC on line 7
Process exited with code 255.
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158.36 ms | 402 KiB | 198 Q