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<?php $arr1 = [ 0 => 'Data 1 Table 1', 1 => null, 2 => 'Data 2 Table 1', 3 => null, 4 => null, 5 => 'Data 3 Table 1', ]; $arr2 = [ 0 => 'Data 1 Table 2', 1 => 'Data 2 Table 2', 2 => 'Data 3 Table 2', ]; $result = array_replace($arr1,array_combine(array_keys(array_intersect($arr1, [null])), $arr2)); var_dump($result);
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14, 8.5.0
array(6) { [0]=> string(14) "Data 1 Table 1" [1]=> string(14) "Data 1 Table 2" [2]=> string(14) "Data 2 Table 1" [3]=> string(14) "Data 2 Table 2" [4]=> string(14) "Data 3 Table 2" [5]=> string(14) "Data 3 Table 1" }
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 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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