What potential pitfalls should be considered when using PHP to manipulate arrays with duplicate values?

When manipulating arrays with duplicate values in PHP, potential pitfalls to consider include inadvertently overwriting values, unintended modifications to the array structure, and difficulties in accurately identifying and handling duplicates. To solve this issue, you can use functions like array_unique() to remove duplicate values before performing any manipulations on the array. 

// Sample array with duplicate values
$array = [1, 2, 3, 2, 4, 5, 3];

// Remove duplicate values
$uniqueArray = array_unique($array);

// Perform array manipulation on $uniqueArray
foreach ($uniqueArray as $value) {
    // Manipulate array elements here
}

Keywords

PHP arrays duplicate values manipulation errors

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