What is the best way to combine array contents in PHP when comparing keys from two arrays?

When comparing keys from two arrays in PHP, the best way to combine array contents is to use the array_merge() function. This function takes multiple arrays as arguments and merges them together, combining the values of matching keys. This allows you to easily merge the contents of two arrays based on their keys. 

$array1 = ['key1' => 'value1', 'key2' => 'value2'];
$array2 = ['key1' => 'new value1', 'key3' => 'value3'];

$combinedArray = array_merge($array1, $array2);

print_r($combinedArray);

Keywords

array_combine array_keys array_merge foreach key_exists

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