晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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<h1 align="center">PHPDoc Parser for PHPStan</h1>

<p align="center">
	<a href="https://github.com/phpstan/phpdoc-parser/actions"><img src="https://github.com/phpstan/phpdoc-parser/workflows/Build/badge.svg" alt="Build Status"></a>
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	<a href="https://choosealicense.com/licenses/mit/"><img src="https://poser.pugx.org/phpstan/phpstan/license" alt="License"></a>
	<a href="https://phpstan.org/"><img src="https://img.shields.io/badge/PHPStan-enabled-brightgreen.svg?style=flat" alt="PHPStan Enabled"></a>
</p>

This library `phpstan/phpdoc-parser` represents PHPDocs with an AST (Abstract Syntax Tree). It supports parsing and modifying PHPDocs.

For the complete list of supported PHPDoc features check out PHPStan documentation. PHPStan is the main (but not the only) user of this library.

* [PHPDoc Basics](https://phpstan.org/writing-php-code/phpdocs-basics) (list of PHPDoc tags)
* [PHPDoc Types](https://phpstan.org/writing-php-code/phpdoc-types) (list of PHPDoc types)
* [phpdoc-parser API Reference](https://phpstan.github.io/phpdoc-parser/2.3.x/namespace-PHPStan.PhpDocParser.html) with all the AST node types etc.

This parser also supports parsing [Doctrine Annotations](https://github.com/doctrine/annotations). The AST nodes live in the [PHPStan\PhpDocParser\Ast\PhpDoc\Doctrine namespace](https://phpstan.github.io/phpdoc-parser/2.1.x/namespace-PHPStan.PhpDocParser.Ast.PhpDoc.Doctrine.html).

## Installation

```
composer require phpstan/phpdoc-parser
```

## Basic usage

```php
<?php

require_once __DIR__ . '/vendor/autoload.php';

use PHPStan\PhpDocParser\Ast\PhpDoc\ParamTagValueNode;
use PHPStan\PhpDocParser\Ast\PhpDoc\PhpDocNode;
use PHPStan\PhpDocParser\Ast\Type\IdentifierTypeNode;
use PHPStan\PhpDocParser\Lexer\Lexer;
use PHPStan\PhpDocParser\ParserConfig;
use PHPStan\PhpDocParser\Parser\ConstExprParser;
use PHPStan\PhpDocParser\Parser\PhpDocParser;
use PHPStan\PhpDocParser\Parser\TokenIterator;
use PHPStan\PhpDocParser\Parser\TypeParser;

// basic setup

$config = new ParserConfig(usedAttributes: []);
$lexer = new Lexer($config);
$constExprParser = new ConstExprParser($config);
$typeParser = new TypeParser($config, $constExprParser);
$phpDocParser = new PhpDocParser($config, $typeParser, $constExprParser);

// parsing and reading a PHPDoc string

$tokens = new TokenIterator($lexer->tokenize('/** @param Lorem $a */'));
$phpDocNode = $phpDocParser->parse($tokens); // PhpDocNode
$paramTags = $phpDocNode->getParamTagValues(); // ParamTagValueNode[]
echo $paramTags[0]->parameterName; // '$a'
echo $paramTags[0]->type; // IdentifierTypeNode - 'Lorem'
```

### Format-preserving printer

This component can be used to modify the AST
and print it again as close as possible to the original.

It's heavily inspired by format-preserving printer component in [nikic/PHP-Parser](https://github.com/nikic/PHP-Parser).

```php
<?php

require_once __DIR__ . '/vendor/autoload.php';

use PHPStan\PhpDocParser\Ast\NodeTraverser;
use PHPStan\PhpDocParser\Ast\NodeVisitor\CloningVisitor;
use PHPStan\PhpDocParser\Ast\PhpDoc\PhpDocNode;
use PHPStan\PhpDocParser\Ast\Type\IdentifierTypeNode;
use PHPStan\PhpDocParser\Lexer\Lexer;
use PHPStan\PhpDocParser\ParserConfig;
use PHPStan\PhpDocParser\Parser\ConstExprParser;
use PHPStan\PhpDocParser\Parser\PhpDocParser;
use PHPStan\PhpDocParser\Parser\TokenIterator;
use PHPStan\PhpDocParser\Parser\TypeParser;
use PHPStan\PhpDocParser\Printer\Printer;

// basic setup with enabled required lexer attributes

$config = new ParserConfig(usedAttributes: ['lines' => true, 'indexes' => true, 'comments' => true]);
$lexer = new Lexer($config);
$constExprParser = new ConstExprParser($config);
$typeParser = new TypeParser($config, $constExprParser);
$phpDocParser = new PhpDocParser($config, $typeParser, $constExprParser);

$tokens = new TokenIterator($lexer->tokenize('/** @param Lorem $a */'));
$phpDocNode = $phpDocParser->parse($tokens); // PhpDocNode

$cloningTraverser = new NodeTraverser([new CloningVisitor()]);

/** @var PhpDocNode $newPhpDocNode */
[$newPhpDocNode] = $cloningTraverser->traverse([$phpDocNode]);

// change something in $newPhpDocNode
$newPhpDocNode->getParamTagValues()[0]->type = new IdentifierTypeNode('Ipsum');

// print changed PHPDoc
$printer = new Printer();
$newPhpDoc = $printer->printFormatPreserving($newPhpDocNode, $phpDocNode, $tokens);
echo $newPhpDoc; // '/** @param Ipsum $a */'
```

## Code of Conduct

This project adheres to a [Contributor Code of Conduct](CODE_OF_CONDUCT.md). By participating in this project and its community, you are expected to uphold this code.

## Building

Initially you need to run `composer install`, or `composer update` in case you aren't working in a folder which was built before.

Afterwards you can either run the whole build including linting and coding standards using

    make

or run only tests using

    make tests

haha - 2025