What is the significance of using the modulo operator (%) in PHP when checking for multiples?

When checking for multiples in PHP, using the modulo operator (%) can help determine if a number is a multiple of another number. The modulo operator returns the remainder of a division operation, so if the result is 0, then the number is a multiple. This is a simple and efficient way to check for multiples in PHP. 

// Check if $number is a multiple of 5
if ($number % 5 == 0) {
    echo $number . ' is a multiple of 5';
} else {
    echo $number . ' is not a multiple of 5';
}

Keywords

modulo operator % multiples PHP significance

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