Are there any specific PHP functions or methods that can simplify the process of alternating colors in a loop?

When looping through a list of items and wanting to alternate the background color of each item, you can use the modulus operator (%) to determine if the current iteration is even or odd. Based on this condition, you can apply different background colors to achieve the alternating effect. 

$items = ['Item 1', 'Item 2', 'Item 3', 'Item 4', 'Item 5'];

foreach ($items as $key => $item) {
    $bgColor = $key % 2 == 0 ? 'lightgrey' : 'white';
    
    echo "<div style='background-color: $bgColor;'>$item</div>";
}

Keywords

PHP loop alternating colors simplify functions

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