How can the PHP code be modified to properly display the contents of the array?

The issue is that the code is trying to directly echo an array, which will not display its contents properly. To fix this, we need to loop through the array and echo each element individually. This can be done using a foreach loop in PHP. 

<?php
// Original array
$colors = array("red", "green", "blue");

// Loop through the array and echo each element
foreach ($colors as $color) {
    echo $color . "<br>";
}
?>

Keywords

PHP array display modification syntax

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