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<?php $string = 'cba'; var_dump(isset($string['test'])); // true var_dump(!empty($string['test'])); //true var_dump($string['test']); // a
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
bool(false) bool(false) Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/GdhWZ:6 Stack trace: #0 {main} thrown in /in/GdhWZ on line 6
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
bool(false) bool(false) Warning: Illegal string offset 'test' in /in/GdhWZ on line 6 string(1) "c"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.3 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
bool(true) bool(true) string(1) "c"
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/GdhWZ on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.2
bool(false) bool(false) string(1) "c"

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