What are some best practices for handling array key modifications in PHP?

When modifying array keys in PHP, it is important to ensure that the keys are updated correctly to avoid unexpected behavior or errors in your code. One best practice is to use the array_combine() function to create a new array with the updated keys and values.

// Original array with keys to be modified
$originalArray = ['key1' => 'value1', 'key2' => 'value2', 'key3' => 'value3'];

// New keys for the array
$newKeys = ['newKey1', 'newKey2', 'newKey3'];

// Create a new array with updated keys
$modifiedArray = array_combine($newKeys, array_values($originalArray));

// Output the modified array
print_r($modifiedArray);