The most advanced PHP regexp library. Clean, descriptive wrapper functions enhancing PCRE extension methods.

v0.9.1 2019-06-11 22:25 UTC

This package is auto-updated.

Last update: 2020-01-04 16:16:35 UTC



T-Regx | Powerful Regular Expressions library

The most advanced PHP regexp library. Clean, descriptive, fast wrapper functions enhancing PCRE methods.

See documentation.

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  1. Installation
  2. API
  3. Quick Examples
  4. Overview
  5. Supported PHP versions
  6. Comparison
  7. License


Installation for PHP 7.1 and later:

composer require rawr/t-regx


Full API documentation is available at t-regx.com.

Quick Examples

Automatic delimiters

These calls are identical:


💡 See more about automatic delimiters


pattern('\d{3}')->match('My phone is 456-232-123')->first();  // '456'
pattern('\d{3}')->match('My phone is 456-232-123')->all();    // ['456', '232', '123']
pattern('\d{3}')->match('My phone is 456-232-123')->only(2);  // ['456', '232']

You can pass any callable to the first() method:

pattern('\d{3}')->match('My phone is 456-232-123')->first('str_split');   // ['4', '5', '6']
pattern('\d{3}')->match('My phone is 456-232-123')->first('strlen')       // 3

💡 See more about first(), all() and only($limit).


    ->replace('P. Sherman, 42 Wallaby way')

// 'P. Sh__$1__man, 42 Wall__$1__y w__$1__'
    ->replace('P. Sherman, 42 Wallaby way')

// 'P. ShERman, 42 Wallaby way'

💡 See more about replace()->with() / replace()->withReferences() and replace()->callback().

💡 See also: replace()->by()->group() and replace()->by()->map().

Prepared Patterns

Pattern::inject('(You|she) (are|is) @link (yours|hers)', [
    'link' => 'https://t-regx.com/docs/prepared-patterns'

Above pattern can match both:

You are https://t-regx.com/docs/prepared-patterns hers
She is https://t-regx.com/docs/prepared-patterns yours

Check out prepared patterns with Pattern::prepare() and Pattern::inject()!

Optional matches

Not sure if your pattern is matched or not?

$result = pattern('word')->match($text)

$result   // 'WORD'

💡 See more about orThrow(), orElse(callback) or orReturn(var).


Why T-Regx stands out?

💡 See documentation at t-regx.com

  • Working with the developer

    • Not even touching your error handlers in any way
    • Converts all PCRE notices/error/warnings to exceptions
    • Calling preg_last_error() after each call, to validate your method
    • Tracking offset and subjects while replacing strings
    • Fixing error with multi-byte offset (utf-8 safe)
  • Automatic delimiters for your pattern

    Surrounding slashes or tildes (/pattern/ or ~patttern~) are not compulsory. T-Regx's smart delimiter will conveniently add one of many delimiters for you, if they're not already present.

  • Converting Warnings to Exceptions

    • Warning or errors during preg:: are converted to exceptions.
    • preg_() can never fail, because it throws SafeRegexException on warning/error.
    • In some cases, preg_() methods might fail, return false/null and NOT trigger a warning. Separate exception, SuspectedReturnSafeRegexException is then thrown by T-Regx.
  • Written with clean API

    • Descriptive interface
    • SRP methods, UTF-8 support
    • No Reflection used, No (...varargs), No (boolean arguments, true), (No flags, 1), [No [nested, [arrays]]]
  • Protects your from fatal errors

    • Certain arguments cause fatal errors with preg_() methods.
    • T-Regx will throw a catchable exception in those cases.

Ways of using T-Regx

// Class static method style
use TRegx\CleanRegex\Pattern;

// Global function style

💡 See more about entry points and pattern().

Safe regexps without changing your API?

Would you like to protect yourself from any notices, errors and warnings?

Just swap preg_ to preg:: and yay! All warnings and errors are converted to exceptions!

try {
    if (preg::match_all('/^https?:\/\/(www)?\./', $url) > 0) {

    return preg::replace_callback('/(regexp/i', $myCallback, 'I very much like regexps');
catch (SafeRegexException $e) {
    $e->getMessage(); // `preg_replace_callback(): Compilation failed: missing ) at offset 7`

if (preg::match('/\s+/', $input) === false) {
    // Never happens

preg:: is an exact copy of preg_ methods, but catches all warnings, exceptions and calls preg_last_error() after each call.

The last line never happens, because if match failed (invalid regex syntax, malformed utf-8 subject, backtrack limit exceeded, any other error) - then SafeRegexException is thrown.

You can try/catch it, which is impossible with warnings.

Supported PHP versions

T-Regx has 2 production branches: master and master-php5.3. As you might expect, master is the most recent release. Ever so often master is being merged master-php5.3 and the most recent changes are also available for PHP 5.3+ - < 7.1.0.

  • master-php5.3 runs on PHP 5.3 - it just works
  • master runs on PHP 7.1.3 - withscalar params, nullable types, return type hints, PREG_EMPTY_AS_NULL, error_clear_last(), preg_replace_callback_array, etc.

Continuous integration builds are running for:

  • PHP 5.3.0, PHP 5.3.29 (oldest and most recent)
  • PHP 5.4.45 (newest)
  • PHP 5.5.38 (newest)
  • PHP 5.6.24 (newest)
  • PHP 7.0 (7.0.3, 7.0.31 - oldest and most recent)
  • PHP 7.1 (7.1.0, 7.1.12, 7.1.13, 7.1.21)
  • PHP 7.2 (7.2.0, 7.2.15)
  • PHP 7.3 (7.3.0, 7.3.1, 7.3.2, 7.3.0RC1, 7.3.3, 7.3.4, 7.3.5)
  • PHP 7.4
  • PHP 8.0

What's better

Ugly api


Pretty api

T-Regx is developed thanks to



T-Regx is MIT licensed.