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<?php $name = 'mickmackusa'; $dob = fn(?int $age): ?int => !$age ? null : ( fn($newAge) => (print "$name's age is $newAge\n") ? $newAge : null )(2021 - $age); var_export($dob(null)); echo "\n---\n"; var_export($dob(31));
Output for 7.4.33, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.15, 8.5.0
NULL --- mickmackusa's age is 1990 1990
Output for 8.3.28
/bin/php-8.3.28: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.3.28) /bin/php-8.3.28: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.3.28)
Process exited with code 1.
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105.07 ms | 407 KiB | 5 Q