What is the purpose of using array_combine in PHP and what potential pitfalls should be considered when using it?

The purpose of using array_combine in PHP is to create an array by using one array for keys and another for its values. This function takes two arrays as input and combines them into a single associative array, where the values from the first array become the keys and the values from the second array become the values. One potential pitfall to consider when using array_combine is that the two input arrays must have the same number of elements, otherwise an error will occur. It is important to ensure that both arrays are properly formatted and have matching keys and values to avoid any unexpected behavior. 

// Example usage of array_combine
$keys = array('a', 'b', 'c');
$values = array(1, 2, 3);

$combinedArray = array_combine($keys, $values);

print_r($combinedArray);

Keywords

array_combine PHP associative arrays key mismatch data loss

Related Questions