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<?php function decorate(callable $func): callable { return function (mixed ...$args) use ($func): mixed { echo "Do something before the func call.", PHP_EOL; $result = $func(...$args); echo "Do something after the func call.", PHP_EOL; return $result; }; } // ------------------------------------------------------- $func = function (int $x): void { echo $x, PHP_EOL; }; $func = decorate($func); $func(x: 23);
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.29, 8.4.1 - 8.4.14, 8.4.16, 8.5.0 - 8.5.1
Do something before the func call. 23 Do something after the func call.
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 7.4.33
Parse error: syntax error, unexpected ':', expecting ')' in /in/bbNql on line 22
Process exited with code 255.
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