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<?php $a=array(2=>"14"); echo isset(($a[2]['foo'])) ? 'set':'not set';echo "\n"; echo isset($a[2]['foo']) ? 'set':'not set';echo "\n"; echo empty($a[2]['foo']) ? 'empty':'not empty';echo "\n"; echo $a[2]['foo'] ? 'truthy':'fruity';echo "\n";
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
not set not set empty Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/MH7J9:6 Stack trace: #0 {main} thrown in /in/MH7J9 on line 6
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 not set not set empty Fatal error: Uncaught TypeError: Cannot access offset of type string on string in /in/MH7J9:6 Stack trace: #0 {main} thrown in /in/MH7J9 on line 6
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
not set not set empty Warning: Illegal string offset 'foo' in /in/MH7J9 on line 6 truthy
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Cannot use isset() on the result of an expression (you can use "null !== expression" instead) in /in/MH7J9 on line 3
Process exited with code 255.

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