A library to validate a json schema.

Installs: 3 406 149

Dependents: 118

Suggesters: 5

Stars: 648

Watchers: 55

Forks: 171

Open Issues: 21

2.0.4 2016-05-24 17:38 UTC


Build Status Latest Stable Version Total Downloads

A PHP Implementation for validating JSON Structures against a given Schema.

See json-schema for more details.



$ git clone https://github.com/justinrainbow/json-schema.git


Composer (will use the Composer ClassLoader)
$ wget http://getcomposer.org/composer.phar
$ php composer.phar require justinrainbow/json-schema:~2.0



// Get the schema and data as objects
// If you use $ref or if you are unsure, resolve those references here
// This modifies the $schema object
$refResolver = new JsonSchema\RefResolver(new JsonSchema\Uri\UriRetriever(), new JsonSchema\Uri\UriResolver());
$schema = $refResolver->resolve('file://' . realpath('schema.json'));

$data = json_decode(file_get_contents('data.json'));

// Validate
$validator = new JsonSchema\Validator();
$validator->check($data, $schema);

if ($validator->isValid()) {
    echo "The supplied JSON validates against the schema.\n";
} else {
    echo "JSON does not validate. Violations:\n";
    foreach ($validator->getErrors() as $error) {
        echo sprintf("[%s] %s\n", $error['property'], $error['message']);

Running the tests

$ vendor/bin/phpunit