Created
August 25, 2015 11:32
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Guzzle's method for "validating" JSON
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| <?php | |
| /** | |
| * Wrapper for JSON decode that implements error detection with helpful error | |
| * messages. | |
| * | |
| * @param string $json JSON data to parse | |
| * @param bool $assoc When true, returned objects will be converted into | |
| * associative arrays. | |
| * @param int $depth User specified recursion depth. | |
| * @param int $options Bitmask of JSON decode options. | |
| * | |
| * @return mixed | |
| * @throws \InvalidArgumentException if the JSON cannot be parsed. | |
| * @link http://www.php.net/manual/en/function.json-decode.php | |
| */ | |
| function json_decode($json, $assoc = false, $depth = 512, $options = 0) | |
| { | |
| static $jsonErrors = [ | |
| JSON_ERROR_DEPTH => 'JSON_ERROR_DEPTH - Maximum stack depth exceeded', | |
| JSON_ERROR_STATE_MISMATCH => 'JSON_ERROR_STATE_MISMATCH - Underflow or the modes mismatch', | |
| JSON_ERROR_CTRL_CHAR => 'JSON_ERROR_CTRL_CHAR - Unexpected control character found', | |
| JSON_ERROR_SYNTAX => 'JSON_ERROR_SYNTAX - Syntax error, malformed JSON', | |
| JSON_ERROR_UTF8 => 'JSON_ERROR_UTF8 - Malformed UTF-8 characters, possibly incorrectly encoded' | |
| ]; | |
| $data = \json_decode($json, $assoc, $depth, $options); | |
| if (JSON_ERROR_NONE !== json_last_error()) { | |
| $last = json_last_error(); | |
| throw new \InvalidArgumentException( | |
| 'Unable to parse JSON data: ' | |
| . (isset($jsonErrors[$last]) ? $jsonErrors[$last] : 'Unknown error') | |
| ); | |
| } | |
| return $data; | |
| } |
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