What potential issues can arise when trying to display headers for each new initial letter in an alphabetically sorted array in PHP?

One potential issue that can arise when trying to display headers for each new initial letter in an alphabetically sorted array in PHP is keeping track of when the initial letter changes. To solve this, you can iterate through the sorted array and compare the initial letter of each element with the previous one. If the initial letter changes, display a header for the new initial letter. 

<?php
// Sample alphabetically sorted array
$sortedArray = array("Apple", "Banana", "Carrot", "Grape", "Lemon", "Orange", "Pear");

$currentLetter = '';
foreach ($sortedArray as $element) {
    $initialLetter = strtoupper($element[0]);

    if ($initialLetter != $currentLetter) {
        echo "<h2>$initialLetter</h2>";
        $currentLetter = $initialLetter;
    }

    echo "<p>$element</p>";
}
?>

Keywords

alphabetically sorted array headers initial letter display PHP

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