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<?php $array_1 = array( 'apple'=>1,'banana'=>2,'coconut'=> 3); $array_2 = array( 'apple'=>2,'banana'=>3,'coconut'=> 4); foreach( $array_1 as $fruit => $num) { if(array_key_exists($fruit, $array_2)){ //check if key from array_1 exists in array_2 $final_array[] = array($fruit => $array_1[$fruit].','.$array_2[$fruit]); //concatenate values from shared key } } print_r ($final_array);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [0] => Array ( [apple] => 1,2 ) [1] => Array ( [banana] => 2,3 ) [2] => Array ( [coconut] => 3,4 ) )

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286.82 ms | 406 KiB | 395 Q