How Can I Echo an Image Every Nth Iteration in a PHP Loop?

PHP: Determining Every Nth Iteration of a Loop

In your code, you're trying to echo an image every three posts by checking the value of $counter. However, your current implementation doesn't accurately determine the every third iteration.

A simple and effective way to achieve this is to utilize the modulus division operator, which calculates the remainder of a division. To check for every third iteration, you can use the following condition:

if ($counter % 3 == 0) {
    echo 'image file';
}

How it works: The modulus operator (%) returns the remainder when you divide the left operand by the right operand. In this case, $counter % 3 will be zero when $counter is a multiple of three. Therefore, the condition will be true for every third iteration, and it will echo the image.

However, note that modulus division by 0 is undefined. If you start your counter at 0, it may lead to unexpected results. To avoid this issue, ensure that your counter starts at a non-zero value, such as 1.

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