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<?php declare(strict_types = 1); /** * @return string[] */ function helper(): array { return []; } $typed_string = helper(); $typed_string = mb_strtolower(array_pop($typed_string)); var_export($typed_string);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Fatal error: Uncaught TypeError: mb_strtolower(): Argument #1 ($string) must be of type string, null given in /in/nEK5c:11 Stack trace: #0 /in/nEK5c(11): mb_strtolower(NULL) #1 {main} thrown in /in/nEK5c on line 11
Process exited with code 255.
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: mb_strtolower() expects parameter 1 to be string, null given in /in/nEK5c:11 Stack trace: #0 /in/nEK5c(11): mb_strtolower(NULL) #1 {main} thrown in /in/nEK5c on line 11
Process exited with code 255.
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