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<?php $object = new DateTime(); var_dump($object::class); echo "\n"; $string = 'whatever'; var_dump(whatever::class); var_dump('whatever'::class); // Why does this work... var_dump($string::class); // ... while this doesn't?
Output for 8.3.0 - 8.3.4, 8.3.6
string(8) "DateTime" string(8) "whatever" string(8) "whatever" Fatal error: Uncaught TypeError: Cannot use "::class" on string in /in/hfvXm:13 Stack trace: #0 {main} thrown in /in/hfvXm on line 13
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 string(8) "DateTime" string(8) "whatever" string(8) "whatever" Fatal error: Uncaught TypeError: Cannot use "::class" on string in /in/hfvXm:13 Stack trace: #0 {main} thrown in /in/hfvXm 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(8) "DateTime" string(8) "whatever" string(8) "whatever" Fatal error: Uncaught TypeError: Cannot use "::class" on value of type string in /in/hfvXm:13 Stack trace: #0 {main} thrown in /in/hfvXm on line 13
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Fatal error: Cannot use ::class with dynamic class name in /in/hfvXm on line 5
Process exited with code 255.
Output for 7.3.0 - 7.3.33
Fatal error: Dynamic class names are not allowed in compile-time ::class fetch in /in/hfvXm on line 5
Process exited with code 255.

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