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run code in 300+ PHP versions simultaneously
<?php $a = "foo"; var_dump($a[7] = "abc"); $a[10] += 1; var_dump($a);
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
Warning: Only the first byte will be assigned to the string offset in /in/PmHUQ on line 3 string(1) "a" Fatal error: Uncaught Error: Cannot use assign-op operators with string offsets in /in/PmHUQ:4 Stack trace: #0 {main} thrown in /in/PmHUQ on line 4
Process exited with code 255.
Output for 7.1.0 - 7.1.28, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
string(1) "a" Fatal error: Uncaught Error: Cannot use assign-op operators with string offsets in /in/PmHUQ:4 Stack trace: #0 {main} thrown in /in/PmHUQ on line 4
Process exited with code 255.
Output for 7.0.0 - 7.0.33
string(1) "a" Fatal error: Uncaught Error: Cannot use assign-op operators with overloaded objects nor string offsets in /in/PmHUQ:4 Stack trace: #0 {main} thrown in /in/PmHUQ on line 4
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
string(1) "a" Fatal error: Cannot use assign-op operators with overloaded objects nor string offsets in /in/PmHUQ on line 4
Process exited with code 255.

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