About Regex Tester

Testen, debuggen und validieren Sie reguläre Ausdrücke mit Echtzeit-Matching. Perfekt für Mustererkennung in Formularen, Datenextraktion und Textverarbeitung. Unterstützt globale, case-insensitive und mehrzeilige Flags.

Key Features

Real-time pattern matching and validation
Support for all PHP regex functions (preg_match, preg_match_all, preg_replace, preg_split)
Multiple pattern modifiers and flags
Detailed match results with highlighting
Copy results and patterns easily

How to Use

Enter your regex pattern (e.g., /\d+/)
Add test text to match against
Select the PHP function to test
Choose modifiers and flags as needed
Click "Process" to see results

Pro Tip: Use the educational sections below to learn regex patterns, see common examples, and avoid typical mistakes. Perfect for beginners and experienced developers alike!

Häufige Regex-Beispiele

E-Mail-Validierung

/\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b/

Telefonnummer

/\+?[1-9]\d{1,14}$|^$\d{3}$\s?\d{3}-\d{4}$/

URL-Validierung

/https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)/

Datumsformat

/^\d{4}-\d{2}-\d{2}$|^\d{2}\/\d{2}\/\d{4}$/

IP-Adresse

/^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/

Kreditkarte

/^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|3[47][0-9]{13}|3[0-9]{13}|6(?:011|5[0-9]{2})[0-9]{12})$/

Regex-Spickzettel

Metazeichen

. - Any character

^ - Start of line

$ - End of line

* - 0 or more

+ - 1 or more

? - 0 or 1

| - OR operator

Quantifizierer

{n} - Exactly n times

{n,} - n or more times

{n,m} - Between n and m

* - 0 or more (greedy)

*? - 0 or more (lazy)

+ - 1 or more (greedy)

+? - 1 or more (lazy)

Anker

^ - Start of string

$ - End of string

\b - Word boundary

\B - Non-word boundary

\A - Start of string

\Z - End of string

\z - Absolute end

Zeichenklassen

[abc] - Any of a, b, c

[a-z] - Any lowercase letter

[A-Z] - Any uppercase letter

\d - Any digit [0-9]

\w - Any word character

\s - Any whitespace

\D - Non-digit

Regex-Tester - Reguläre Ausdrücke Online Testen & Validieren