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<?php $arr = [['bla' => 1], ['bla' => 3]]; $arr2 = [['blu' => 2], ['blu' => 4]]; $newArr = []; foreach ($arr as $key => $value) { $newArr[] = $value + $arr2[$key]; } var_dump($newArr);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 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 - 8.5.1
array(2) { [0]=> array(2) { ["bla"]=> int(1) ["blu"]=> int(2) } [1]=> array(2) { ["bla"]=> int(3) ["blu"]=> int(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.

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