How can the code snippet be optimized to avoid potential errors or bugs related to array manipulation?

The code snippet can be optimized by adding checks to ensure that the array keys exist before manipulating them. This will help avoid potential errors or bugs related to array manipulation, such as trying to access a key that does not exist. 

// Check if the keys exist before manipulating the array
if (isset($array['key1']) && isset($array['key2'])) {
    // Perform array manipulation here
    $temp = $array['key1'];
    $array['key1'] = $array['key2'];
    $array['key2'] = $temp;
} else {
    // Handle the case where the keys do not exist
    echo "One or both keys do not exist in the array.";
}

Keywords

array manipulation optimization errors bugs PHP functions

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