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What are the differences between a standard UUID/GUID and a randomly generated string in PHP?

A standard UUID/GUID is a universally unique identifier generated using a specific algorithm, ensuring uniqueness across systems. On the other hand, a randomly generated string in PHP is not guaranteed to be unique and may result in collisions if not properly managed. To ensure uniqueness, it is recommended to use a standard UUID/GUID instead of a randomly generated string.

php 
// Using standard UUID/GUID
$uuid = uniqid();

// Using randomly generated string
$random_string = bin2hex(random_bytes(16));

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