How to Merge Two Arrays and Eliminate Duplicate Email Values in PHP?

Merging Arrays and Eliminating Duplicate Email Values

Merging arrays and removing duplicate values is a common task when dealing with data. In this case, we are given two arrays of objects containing email addresses. The objective is to merge these arrays while eliminating any duplicated email values.

To achieve this, we employ a two-step approach:

1. Merging the Arrays:

   • We can use the array_merge() function to combine the two arrays into a single array. This function seamlessly merges the two arrays, creating a new array that contains elements from both original arrays.

2. Eliminating Duplicates:

   • Once the arrays are merged, we need to remove any duplicate values. This is where the array_unique() function comes into play. The array_unique() function takes an array as input and returns a new array with duplicate values removed.

By combining these two functions, we can achieve our goal of merging the arrays and removing duplicate email values. The following PHP code demonstrates this process:

$array1 = [
    (object) ["email" => "gffggfg"],
    (object) ["email" => "example@example.com"],
    (object) ["email" => "wefewf"],
];
$array2 = [
    (object) ["email" => "example@example.com"],
    (object) ["email" => "wefwef"],
    (object) ["email" => "wefewf"],
];

$mergedArray = array_unique(array_merge($array1, $array2));

print_r($mergedArray);

The output of the above code will be an array containing the unique objects from both input arrays, with duplicate email values removed.

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