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yiisoft/strings
===============

Yii Strings Helper

2.7.0(5mo ago)492.6M—5.9%17[5 issues](https://github.com/yiisoft/strings/issues)20BSD-3-ClausePHPPHP 8.1 - 8.5CI passing

Since Aug 31Pushed 3mo ago19 watchersCompare

[ Source](https://github.com/yiisoft/strings)[ Packagist](https://packagist.org/packages/yiisoft/strings)[ Docs](https://www.yiiframework.com/)[ GitHub Sponsors](https://github.com/sponsors/yiisoft)[ OpenCollective](https://opencollective.com/yiisoft)[ RSS](/packages/yiisoft-strings/feed)WikiDiscussions 2.x Synced 1mo ago

READMEChangelog (10)Dependencies (6)Versions (20)Used By (20)

 [ ![Yii](https://camo.githubusercontent.com/8317c17418b39410a660f5149071d26c5023c0d5fb2b7ebb771324812f666d73/68747470733a2f2f796969736f66742e6769746875622e696f2f646f63732f696d616765732f7969695f6c6f676f2e737667) ](https://github.com/yiisoft)

Yii Strings
===========

[](#yii-strings)

[![Latest Stable Version](https://camo.githubusercontent.com/add4ca30c124aca76fe04eb2d94edbe369184f717c9ab08d324befe6b25947d1/68747470733a2f2f706f7365722e707567782e6f72672f796969736f66742f737472696e67732f76)](https://packagist.org/packages/yiisoft/strings)[![Total Downloads](https://camo.githubusercontent.com/ca934d755385c78e261a9511e29d5cd70bf11437c7b799ec05eb3585663f58d8/68747470733a2f2f706f7365722e707567782e6f72672f796969736f66742f737472696e67732f646f776e6c6f616473)](https://packagist.org/packages/yiisoft/strings)[![Build status](https://github.com/yiisoft/strings/actions/workflows/build.yml/badge.svg)](https://github.com/yiisoft/strings/actions/workflows/build.yml)[![Code coverage](https://camo.githubusercontent.com/ac0eb89e80224461ef3d981d74c0ca1e609bd84d259947166dac7d1693f82359/68747470733a2f2f636f6465636f762e696f2f67682f796969736f66742f737472696e67732f67726170682f62616467652e7376673f746f6b656e3d4745504d4241484e4358)](https://codecov.io/gh/yiisoft/strings)[![Mutation testing badge](https://camo.githubusercontent.com/ccca708f6fed5027d2d686546c82593f8428f8da55e6adcf74dd24645a69f178/68747470733a2f2f696d672e736869656c64732e696f2f656e64706f696e743f7374796c653d666c61742675726c3d687474707325334125324625324662616467652d6170692e737472796b65722d6d757461746f722e696f2532466769746875622e636f6d253246796969736f6674253246737472696e67732532466d6173746572)](https://dashboard.stryker-mutator.io/reports/github.com/yiisoft/strings/master)[![static analysis](https://github.com/yiisoft/strings/workflows/static%20analysis/badge.svg)](https://github.com/yiisoft/strings/actions?query=workflow%3A%22static+analysis%22)[![type-coverage](https://camo.githubusercontent.com/29f7fa39d5f96a4c8716f1f491873ec6634ae89ef8b21035d2c4f3fdbf7acff7/68747470733a2f2f73686570686572642e6465762f6769746875622f796969736f66742f737472696e67732f636f7665726167652e737667)](https://shepherd.dev/github/yiisoft/strings)

The package provides:

- `StringHelper` that has static methods to work with strings;
- `NumericHelper` that has static methods to work with numeric strings;
- `Inflector` provides methods such as `toPlural()` or `toSlug()` that derive a new string based on the string given;
- `WildcardPattern` is a shell wildcard pattern to match strings against;
- `CombinedRegexp` is a wrapper that optimizes multiple regular expressions matching and `MemoizedCombinedRegexp` is a decorator that caches results of `CombinedRegexp` to speed up matching.

Requirements
------------

[](#requirements)

- PHP 8.1 - 8.5.
- `mbstring` PHP extension.

Installation
------------

[](#installation)

The package could be installed with [Composer](https://getcomposer.org):

```
composer require yiisoft/strings
```

StringHelper usage
------------------

[](#stringhelper-usage)

String helper methods are static so usage is like the following:

```
echo \Yiisoft\Strings\StringHelper::countWords('Strings are cool!'); // 3
```

Overall the helper has the following method groups.

### Bytes

[](#bytes)

- byteLength
- byteSubstring

### File paths

[](#file-paths)

- baseName
- directoryName

### Substrings

[](#substrings)

- substring
- replaceSubstring
- startsWith
- startsWithIgnoringCase
- endsWith
- endsWithIgnoringCase
- findBetween
- findBetweenFirst
- findBetweenLast

### Truncation

[](#truncation)

- truncateBegin
- truncateMiddle
- truncateEnd
- truncateWords
- truncateWordsByLength
- trim
- ltrim
- rtrim

### Counting

[](#counting)

- length
- countWords

### Lowercase and uppercase

[](#lowercase-and-uppercase)

- lowercase
- uppercase
- uppercaseFirstCharacter
- uppercaseFirstCharacterInEachWord

### URL friendly base64

[](#url-friendly-base64)

- base64UrlEncode
- base64UrlDecode

### Other

[](#other)

- matchAnyRegex
- parsePath
- split

NumericHelper usage
-------------------

[](#numerichelper-usage)

Numeric helper methods are static so usage is like the following:

```
echo \Yiisoft\Strings\NumericHelper::toOrdinal(3); // 3rd
```

The following methods are available:

- toOrdinal
- normalize
- isInteger
- convertHumanReadableSizeToBytes
- trimDecimalZeros

Inflector usage
---------------

[](#inflector-usage)

```
echo (new \Yiisoft\Strings\Inflector())
    ->withoutIntl()
    ->toSlug('Strings are cool!'); // strings-are-cool
```

Overall the inflector has the following method groups.

### Plurals and singulars

[](#plurals-and-singulars)

- toPlural
- toSingular

### Transliteration

[](#transliteration)

- toTransliterated

### Case conversion

[](#case-conversion)

- pascalCaseToId
- toPascalCase
- toCamelCase

### Words and sentences

[](#words-and-sentences)

- toSentence
- toWords
- toHumanReadable

### Classes and database tables

[](#classes-and-database-tables)

- classToTable
- tableToClass

### URLs

[](#urls)

- toSlug

WildcardPattern usage
---------------------

[](#wildcardpattern-usage)

`WildcardPattern` allows a simple POSIX-style string matching.

```
use \Yiisoft\Strings\WildcardPattern;

$startsWithTest = new WildcardPattern('test*');
if ($startsWithTest->match('testIfThisIsTrue')) {
    echo 'It starts with "test"!';
}
```

The following characters are special in the pattern:

- `\` escapes other special characters if usage of escape character is not turned off.
- `*` matches any string, including the empty string, except delimiters (`/` and `\` by default).
- `**` matches any string, including the empty string and delimiters.
- `?` matches any single character.
- `[seq]` matches any character in seq.
- `[a-z]` matches any character from a to z.
- `[!seq]` matches any character not in seq.
- `[[:alnum:]]` matches [POSIX style character classes](https://www.php.net/manual/en/regexp.reference.character-classes.php).

`ignoreCase()` could be called before doing a `match()` to get a case-insensitive match:

```
use \Yiisoft\Strings\WildcardPattern;

$startsWithTest = new WildcardPattern('test*');
if ($startsWithTest
    ->ignoreCase()
    ->match('tEStIfThisIsTrue')) {
    echo 'It starts with "test"!';
}
```

CombinedRegexp usage
--------------------

[](#combinedregexp-usage)

`CombinedRegexp` optimizes matching multiple regular expressions.

```
use \Yiisoft\Strings\CombinedRegexp;

$patterns = [
    'first',
    'second',
    '^a\d$',
];
$regexp = new CombinedRegexp($patterns, 'i');
$regexp->matches('a5'); // true – matches the third pattern
$regexp->matches('A5'); // true – matches the third pattern because of `i` flag that is applied to all regular expressions
$regexp->getMatchingPattern('a5'); // '^a\d$' – the pattern that matched
$regexp->getMatchingPatternPosition('a5'); // 2 – the index of the pattern in the array
$regexp->getCompiledPattern(); // '~(?|first|second()|^a\d$()())~'
```

MemoizedCombinedRegexp usage
----------------------------

[](#memoizedcombinedregexp-usage)

`MemoizedCombinedRegexp` caches results of `CombinedRegexp` in memory. It is useful when the same incoming string are matching multiple times or different methods of `CombinedRegexp` are called.

```
use \Yiisoft\Strings\CombinedRegexp;
use \Yiisoft\Strings\MemoizedCombinedRegexp;

$patterns = [
    'first',
    'second',
    '^a\d$',
];
$regexp = new MemoizedCombinedRegexp(new CombinedRegexp($patterns, 'i'));
$regexp->matches('a5'); // Fires `preg_match` inside the `CombinedRegexp`.
$regexp->matches('first'); // Fires `preg_match` inside the `CombinedRegexp`.
$regexp->matches('a5'); // Does not fire `preg_match` inside the `CombinedRegexp` because the result is cached.
$regexp->getMatchingPattern('a5'); // The result is cached so no `preg_match` is fired.
$regexp->getMatchingPatternPosition('a5'); // The result is cached so no `preg_match` is fired.

// The following code fires only once matching mechanism.
if ($regexp->matches('second')) {
    echo sprintf(
        'Matched the pattern "%s" which is on the position "%s" in the expressions list.',
        $regexp->getMatchingPattern('second'),
        $regexp->getMatchingPatternPosition('second'),
    );
}
```

Documentation
-------------

[](#documentation)

- [Internals](docs/internals.md)

If you need help or have a question, the [Yii Forum](https://forum.yiiframework.com/c/yii-3-0/63) is a good place for that. You may also check out other [Yii Community Resources](https://www.yiiframework.com/community).

License
-------

[](#license)

The Yii Strings is free software. It is released under the terms of the BSD License. Please see [`LICENSE`](./LICENSE.md) for more information.

Maintained by [Yii Software](https://www.yiiframework.com/).

Support the project
-------------------

[](#support-the-project)

[![Open Collective](https://camo.githubusercontent.com/a2b15f8e2268d4e3842e00d41ff7a57cce2ad8bd8d8769c5dc4fa05a546a4f62/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f4f70656e253230436f6c6c6563746976652d73706f6e736f722d3765616466313f6c6f676f3d6f70656e253230636f6c6c656374697665266c6f676f436f6c6f723d376561646631266c6162656c436f6c6f723d353535353535)](https://opencollective.com/yiisoft)

Follow updates
--------------

[](#follow-updates)

[![Official website](https://camo.githubusercontent.com/d6b0929173e28cc627430d2519ca1853466a70f37395877eaf4820cb3e1e1909/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f506f77657265645f62792d5969695f4672616d65776f726b2d677265656e2e7376673f7374796c653d666c6174)](https://www.yiiframework.com/)[![Twitter](https://camo.githubusercontent.com/d077c362ac639792171af8bc002ee827816733dfc0925f70b557e6d151022226/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f747769747465722d666f6c6c6f772d3144413146323f6c6f676f3d74776974746572266c6f676f436f6c6f723d314441314632266c6162656c436f6c6f723d3535353535353f7374796c653d666c6174)](https://twitter.com/yiiframework)[![Telegram](https://camo.githubusercontent.com/4e38dd12535575c39c65bea7119b95e663abb2d1f4e3d669a27bbda07ef603f0/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f74656c656772616d2d6a6f696e2d3144413146323f7374796c653d666c6174266c6f676f3d74656c656772616d)](https://t.me/yii3en)[![Facebook](https://camo.githubusercontent.com/48204e301b34b29b0815854544f04c337fc0692096cab35e9a1f8c53a42c2307/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f66616365626f6f6b2d6a6f696e2d3144413146323f7374796c653d666c6174266c6f676f3d66616365626f6f6b266c6f676f436f6c6f723d666666666666)](https://www.facebook.com/groups/yiitalk)[![Slack](https://camo.githubusercontent.com/1a3645ba1c97e6684d0349bc478201e1621ba0d3efad516d81035364d442bad7/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f736c61636b2d6a6f696e2d3144413146323f7374796c653d666c6174266c6f676f3d736c61636b)](https://yiiframework.com/go/slack)

###  Health Score

65

—

FairBetter than 99% of packages

Maintenance72

Regular maintenance activity

Popularity55

Moderate usage in the ecosystem

Community44

Growing community involvement

Maturity81

Battle-tested with a long release history

 Bus Factor2

2 contributors hold 50%+ of commits

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~131 days

Recently: every ~190 days

Total

16

Last Release

118d ago

Major Versions

1.2.0 → 2.0.02021-02-10

PHP version history (4 changes)1.0.0PHP ^7.4|^8.0

2.2.0PHP ^8.0

2.6.0PHP ~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0

2.7.0PHP 8.1 - 8.5

### Community

Maintainers

![](https://www.gravatar.com/avatar/261a6249c6f605f3956a2fae40fbb813f6b2e1e6f2bf806180c851a965426e54?d=identicon)[cebe](/maintainers/cebe)

![](https://www.gravatar.com/avatar/fc29e4e7068a00fe9b9db37b8aadda1db6020adcacef810461e47b99c2b150e6?d=identicon)[samdark](/maintainers/samdark)

![](https://www.gravatar.com/avatar/ccb75e3312d6bd454ea445ea308139fd185a4ca906ca5df21cc66e6a35de25a3?d=identicon)[SilverFire](/maintainers/SilverFire)

![](https://www.gravatar.com/avatar/99106256c24a8cb23871b99fa90e48f37f1aa71608c185759b7d2a88683a5918?d=identicon)[hiqsol](/maintainers/hiqsol)

---

Top Contributors

[![samdark](https://avatars.githubusercontent.com/u/47294?v=4)](https://github.com/samdark "samdark (92 commits)")[![vjik](https://avatars.githubusercontent.com/u/525501?v=4)](https://github.com/vjik "vjik (53 commits)")[![xepozz](https://avatars.githubusercontent.com/u/6815714?v=4)](https://github.com/xepozz "xepozz (25 commits)")[![devanych](https://avatars.githubusercontent.com/u/20116244?v=4)](https://github.com/devanych "devanych (8 commits)")[![machour](https://avatars.githubusercontent.com/u/304450?v=4)](https://github.com/machour "machour (7 commits)")[![dependabot[bot]](https://avatars.githubusercontent.com/in/29110?v=4)](https://github.com/dependabot[bot] "dependabot[bot] (6 commits)")[![dependabot-preview[bot]](https://avatars.githubusercontent.com/in/2141?v=4)](https://github.com/dependabot-preview[bot] "dependabot-preview[bot] (4 commits)")[![StyleCIBot](https://avatars.githubusercontent.com/u/11048387?v=4)](https://github.com/StyleCIBot "StyleCIBot (4 commits)")[![terabytesoftw](https://avatars.githubusercontent.com/u/42547589?v=4)](https://github.com/terabytesoftw "terabytesoftw (4 commits)")[![viktorprogger](https://avatars.githubusercontent.com/u/7670669?v=4)](https://github.com/viktorprogger "viktorprogger (4 commits)")[![kamarton](https://avatars.githubusercontent.com/u/9432032?v=4)](https://github.com/kamarton "kamarton (3 commits)")[![luizcmarin](https://avatars.githubusercontent.com/u/67489841?v=4)](https://github.com/luizcmarin "luizcmarin (3 commits)")[![mspirkov](https://avatars.githubusercontent.com/u/63721828?v=4)](https://github.com/mspirkov "mspirkov (2 commits)")[![Copilot](https://avatars.githubusercontent.com/in/1143301?v=4)](https://github.com/Copilot "Copilot (2 commits)")[![Fantom409](https://avatars.githubusercontent.com/u/14968877?v=4)](https://github.com/Fantom409 "Fantom409 (2 commits)")[![mapeveri](https://avatars.githubusercontent.com/u/6276555?v=4)](https://github.com/mapeveri "mapeveri (2 commits)")[![Arhell](https://avatars.githubusercontent.com/u/26163841?v=4)](https://github.com/Arhell "Arhell (2 commits)")[![romkatsu](https://avatars.githubusercontent.com/u/1677515?v=4)](https://github.com/romkatsu "romkatsu (2 commits)")[![salehhashemi1992](https://avatars.githubusercontent.com/u/81674631?v=4)](https://github.com/salehhashemi1992 "salehhashemi1992 (1 commits)")[![roxblnfk](https://avatars.githubusercontent.com/u/4152481?v=4)](https://github.com/roxblnfk "roxblnfk (1 commits)")

---

Tags

hacktoberfestinflectornumericalpattern-matchingstringyii3helperstringyii

###  Code Quality

TestsPHPUnit

Static AnalysisRector

### Embed Badge

![Health badge](/badges/yiisoft-strings/health.svg)

```
[![Health](https://phpackages.com/badges/yiisoft-strings/health.svg)](https://phpackages.com/packages/yiisoft-strings)
```

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