Exponential backoff method for retry cases

September 30, 2024
/**
 * @return array<int>
 */
function exponentialBackoff(
    int $times,
    int $delay,
    float $min = 0.9,
    float $max = 1.1
): array {
    $backoff = [];
 
    for ($i = 0; $i < $times; $i++) {
        $backoff[] = (int) ($delay * ($min + mt_rand() / mt_getrandmax() * ($max - $min))) << $i;
    }
 
    return $backoff;
}/**
 * @return array<int>
 */
function exponentialBackoff(
    int $times,
    int $delay,
    float $min = 0.9,
    float $max = 1.1
): array {
    $backoff = [];
 
    for ($i = 0; $i < $times; $i++) {
        $backoff[] = (int) ($delay * ($min + mt_rand() / mt_getrandmax() * ($max - $min))) << $i;
    }
 
    return $backoff;
}