How does the array_combine function work in PHP, and what considerations should be made when using it?

The array_combine function in PHP takes two arrays and creates a new array where the values from the first array are used as keys and the values from the second array are used as values. When using array_combine, it is important to ensure that both input arrays have the same number of elements, as the function will throw an error if they do not match. 

$array1 = array('a', 'b', 'c');
$array2 = array(1, 2, 3);

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

print_r($combinedArray);

Keywords

array_combine PHP function associative arrays key mismatch

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