Regular Expressions 101

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Community Patterns

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Community Library Entry

Regular Expression
PCRE2 (PHP >=7.3)

^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$

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Description

wttmforums.com

Submitted by anonymous - 3 months ago

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Community Patterns

Match Common Programming Keywords (e.g., class, function)

Match File Paths (Unix Style)

Match Date in ISO 8601 Format

Match Decimal Numbers (Optional Fraction)

Match Valid CSS Units (px, em, %, etc.)

Match Common HTML Attributes

Match URL Query Parameters

Match HTTP Headers

Match Valid MAC Address with Hyphens

Match HTML Document Structure

Match HTML Meta Tags

Match Common Email Providers

Match File Extensions (e.g., .pdf, .docx)

Match Phone Numbers with Country Code

Match UUID v1

Match Simple Passwords (At least 6 Characters)

Match JSON Objects

Match HTML Anchor Tags

Match Git Commit Hashes

Match ASCII Printable Characters

Community Library Entry

Regular ExpressionPCRE2 (PHP >=7.3)

Description

Regular Expression
PCRE2 (PHP >=7.3)