What is the difference between strtotime and microtime functions in PHP?

The strtotime function in PHP is used to parse any English textual datetime description into a Unix timestamp, while the microtime function is used to get the current Unix timestamp with microseconds. The main difference between the two functions is that strtotime returns a timestamp based on a textual description, while microtime returns a timestamp with microseconds precision.

// Using strtotime function
$timestamp = strtotime("now");
echo $timestamp;

// Using microtime function
$timestamp = microtime(true);
echo $timestamp;