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Tutorials and Sample Regular Expressions

Everything you need to know about writing regular expressions for PHP.

How to match UUIDs?

UUID v1 and v4

Example: aa8d2992-e371-486c-bad7-baa4dae2eef5

Regex: [0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}