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<?php $unflattened_array = [ '["2", "3"]', '["4"]', '["4", "3"]' ]; $flattened_array = []; foreach ($unflattened_array as $items) { array_push($flattened_array, ...json_decode($items)); } $flattened_array = array_unique($flattened_array); var_dump($flattened_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
array(3) { [0]=> string(1) "2" [1]=> string(1) "3" [2]=> string(1) "4" }
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.
preferences:
89.27 ms | 407 KiB | 5 Q