How can the issue of duplicate entries in a select dropdown field be resolved in PHP?

Issue: Duplicate entries in a select dropdown field can be resolved by removing duplicates from the array used to populate the dropdown options in PHP. 

// Sample array with duplicate entries
$options = array("Option 1", "Option 2", "Option 1", "Option 3", "Option 2");

// Remove duplicates from the array
$options = array_unique($options);

// Populate select dropdown with unique options
echo "<select>";
foreach ($options as $option) {
    echo "<option value='$option'>$option</option>";
}
echo "</select>";

Keywords

PHP select dropdown duplicate entries array_unique unset

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