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<?php function hasNonEmptyArray(array $array): bool { foreach ($array as $k => $v) { if (is_array($v)) { if (hasNonEmptyArray($v)) { return true; // pass deeper true outcome up the call chain } } else { echo "Found element $k\n"; return true; } } return false; } $array = [ [ 'one' => [], 'two' => [ 'a' => [ 'foo' => [], ], 'b' => [] ], 'three' => [ 'c' => [ 'fizz' => 'buzz' ] ] ] ]; var_export(hasNonEmptyArray($array));
Output for 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
Found element fizz true
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.

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