What are the potential pitfalls of using timestamps in PHP for time delays?

Using timestamps for time delays in PHP can be problematic because timestamps are based on the server's time zone, which may not always be accurate or consistent. To avoid potential pitfalls, it is recommended to use PHP's built-in functions like `time()` or `strtotime()` to calculate time delays based on the current server time. 

// Calculate time delay using PHP's built-in functions
$delay = 60; // 60 seconds delay
$delay_timestamp = time() + $delay;

// Wait for the specified delay
while (time() < $delay_timestamp) {
    // Do nothing
}

Keywords

timestamps PHP time delays potential pitfalls errors

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