Regular Expressions 101

Order By

Filter by Flavor

Sponsors

There are currently no sponsors. Become a sponsor today!

Community Patterns

Search among 18,020 community submitted regex patterns...

1

Match 24-Hour Time with Optional Seconds

PCRE2 (PHP >=7.3)

touch-notes.com

Submitted by anonymous - 3 months ago

1

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

PCRE2 (PHP >=7.3)

mitroaccess.com

Submitted by anonymous - 3 months ago

1

Match File Paths (Unix Style)

PCRE2 (PHP >=7.3)

Submitted by anonymous - 3 months ago

1

Match Date in ISO 8601 Format

PCRE2 (PHP >=7.3)

ekindesigns.com

Submitted by anonymous - 3 months ago

1

Match Decimal Numbers (Optional Fraction)

PCRE2 (PHP >=7.3)

Submitted by anonymous - 3 months ago

1

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

PCRE2 (PHP >=7.3)

amazingtoptens.com

Submitted by anonymous - 3 months ago

1

Match Common HTML Attributes

PCRE2 (PHP >=7.3)

NoteAbleLists.com

Submitted by anonymous - 3 months ago

1

Match URL Query Parameters

PCRE2 (PHP >=7.3)

IsHimMarketing.com

Submitted by anonymous - 3 months ago

1

Match HTTP Headers

PCRE2 (PHP >=7.3)

Submitted by anonymous - 3 months ago

1

Match Valid MAC Address with Hyphens

PCRE2 (PHP >=7.3)

Submitted by anonymous - 3 months ago

1

Match HTML Document Structure

PCRE2 (PHP >=7.3)

Submitted by anonymous - 3 months ago

1

Match HTML Meta Tags

PCRE2 (PHP >=7.3)

Submitted by anonymous - 3 months ago

1

Match Common Email Providers

PCRE2 (PHP >=7.3)

Submitted by anonymous - 3 months ago

1

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

PCRE2 (PHP >=7.3)

WebRetailBlog.com

Submitted by anonymous - 3 months ago

1

Match Phone Numbers with Country Code

PCRE2 (PHP >=7.3)

Submitted by anonymous - 3 months ago

1

Match UUID v1

PCRE2 (PHP >=7.3)

ScraperSite.com

Submitted by anonymous - 3 months ago

1

Match Simple Passwords (At least 6 Characters)

PCRE2 (PHP >=7.3)

Submitted by anonymous - 3 months ago

1

Match JSON Objects

PCRE2 (PHP >=7.3)

Submitted by anonymous - 3 months ago

1

Match HTML Anchor Tags

PCRE2 (PHP >=7.3)

Submitted by anonymous - 3 months ago

1

Match Git Commit Hashes

PCRE2 (PHP >=7.3)

Submitted by anonymous - 3 months ago

1...8 9 10 11 12...901

Community Library Entry

1

Regular Expression
PCRE2 (PHP >=7.3)

/

\b(?:class|function|return|if|else|while|for|switch|case|break|continue|import|export|let|const|var|new|this|super)\b

/

gm

Open regex in editor

Description

mitroaccess.com

Submitted by anonymous - 3 months ago