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<?php $a ="zz"; $b = "zz"; $a++; $b--; var_dump($a); var_dump($b); $c = "zz"; $c += 1; var_dump($c); $d = "zz"; $d -= 1; var_dump($d);
Output for 8.3.0 - 8.3.6
Deprecated: Decrement on non-numeric string has no effect and is deprecated in /in/gT8a8 on line 7 string(3) "aaa" string(2) "zz" Fatal error: Uncaught TypeError: Unsupported operand types: string + int in /in/gT8a8:13 Stack trace: #0 {main} thrown in /in/gT8a8 on line 13
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
string(3) "aaa" string(2) "zz" Fatal error: Uncaught TypeError: Unsupported operand types: string + int in /in/gT8a8:13 Stack trace: #0 {main} thrown in /in/gT8a8 on line 13
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
string(3) "aaa" string(2) "zz" Warning: A non-numeric value encountered in /in/gT8a8 on line 13 int(1) Warning: A non-numeric value encountered in /in/gT8a8 on line 17 int(-1)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 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, 7.0.0 - 7.0.33
string(3) "aaa" string(2) "zz" int(1) int(-1)

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