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<?php $a = 'foo'; echo PHP_EOL, 'unset cast', PHP_EOL; var_dump((unset) $a); var_dump($a); echo PHP_EOL, 'unset call', PHP_EOL; unset($a); var_dump($a);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Fatal error: The (unset) cast is no longer supported in /in/idI6O on line 5
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 Fatal error: The (unset) cast is no longer supported in /in/idI6O on line 5
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: The (unset) cast is deprecated in /in/idI6O on line 5 unset cast NULL string(3) "foo" unset call Notice: Undefined variable: a in /in/idI6O on line 9 NULL
Output for 7.3.32 - 7.3.33
unset cast NULL string(3) "foo" unset call NULL
Output for 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
unset cast NULL string(3) "foo" unset call Notice: Undefined variable: a in /in/idI6O on line 9 NULL
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