How to Validate XML Files in PHP

We can quickly and easily validate XML files using ready-to-run PHP code examples.

Rather than write a lot of new code, we’ll use a few lines of PHP to call a free XML data validation API.

We can install the SDK with Composer by running the below command from our command line:

composer require cloudmersive/cloudmersive_document_convert_api_client

Next, we can copy the below PHP examples to call our function (we’ll use our XML file path in the $input_file variable to make our validation check):

<?php
require_once(__DIR__ . '/vendor/autoload.php');

// Configure API key authorization: Apikey
$config = Swagger\Client\Configuration::getDefaultConfiguration()->setApiKey('Apikey', 'YOUR_API_KEY');



$apiInstance = new Swagger\Client\Api\ValidateDocumentApi(
    
    
    new GuzzleHttp\Client(),
    $config
);
$input_file = "/path/to/inputfile"; // \SplFileObject | Input file to perform the operation on.

try {
    $result = $apiInstance->validateDocumentXmlValidation($input_file);
    print_r($result);
} catch (Exception $e) {
    echo 'Exception when calling ValidateDocumentApi->validateDocumentXmlValidation: ', $e->getMessage(), PHP_EOL;
}
?>

Finally, we can turn our attention to authorization — we’ll just need a free Cloudmersive API key (800 API calls per month, no commitments) and we’re good to go.

No more code required!