JSON Lint
=========
[](http://travis-ci.org/Seldaek/jsonlint)
Usage
-----
```php
use Seld\JsonLint\JsonParser;
$parser = new JsonParser();
// returns null if it's valid json, or a ParsingException object.
$parser->lint($json);
// Call getMessage() on the exception object to get
// a well formatted error message error like this
// Parse error on line 2:
// ... "key": "value" "numbers": [1, 2, 3]
// ----------------------^
// Expected one of: 'EOF', '}', ':', ',', ']'
// Call getDetails() on the exception to get more info.
// returns parsed json, like json_decode() does, but slower, throws
// exceptions on failure.
$parser->parse($json);
```
You can also pass additional flags to `JsonParser::lint/parse` that tweak the functionality:
- `JsonParser::DETECT_KEY_CONFLICTS` throws an exception on duplicate keys.
- `JsonParser::ALLOW_DUPLICATE_KEYS` collects duplicate keys. e.g. if you have two `foo` keys they will end up as `foo` and `foo.2`.
- `JsonParser::PARSE_TO_ASSOC` parses to associative arrays instead of stdClass objects.
Example:
```php
$parser = new JsonParser;
try {
$parser->parse(file_get_contents($jsonFile), JsonParser::DETECT_KEY_CONFLICTS);
} catch (DuplicateKeyException $e) {
$details = $e->getDetails();
echo 'Key '.$details['key'].' is a duplicate in '.$jsonFile.' at line '.$details['line'];
}
```
> **Note:** This library is meant to parse JSON while providing good error messages on failure. There is no way it can be as fast as php native `json_decode()`.
>
> It is recommended to parse with `json_decode`, and when it fails parse again with seld/jsonlint to get a proper error message back to the user. See for example [how Composer uses this library](https://github.com/composer/composer/blob/56edd53046fd697d32b2fd2fbaf45af5d7951671/src/Composer/Json/JsonFile.php#L283-L318):
Installation
------------
For a quick install with Composer use:
$ composer require seld/jsonlint
JSON Lint can easily be used within another app if you have a
[PSR-4](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-4-autoloader.md)
autoloader, or it can be installed through [Composer](https://getcomposer.org/)
for use as a CLI util.
Once installed via Composer you can run the following command to lint a json file or URL:
$ bin/jsonlint file.json
Requirements
------------
- PHP 5.3+
- [optional] PHPUnit 3.5+ to execute the test suite (phpunit --version)
Submitting bugs and feature requests
------------------------------------
Bugs and feature request are tracked on [GitHub](https://github.com/Seldaek/jsonlint/issues)
Author
------
Jordi Boggiano - <j.boggiano@seld.be> - <http://twitter.com/seldaek>
License
-------
JSON Lint is licensed under the MIT License - see the LICENSE file for details
Acknowledgements
----------------
This library is a port of the JavaScript [jsonlint](https://github.com/zaach/jsonlint) library.
Generated by dwww version 1.15 on Thu Jun 27 23:24:53 CEST 2024.