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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This file is part of the Valdi package.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * (c) Philip Lehmann-Böhm <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * For the full copyright and license information, please view the LICENSE  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * file that was distributed with this source code.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Valdi;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Valdi\Validator\ValidatorInterface;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * The Validator is used to chain Validators together and validate a set of data  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * with it.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class Validator { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Holds the available validators.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $availableValidators;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Creates instances of the available validators.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param array $validators  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * the validators to load, key = name, value = classname within the  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * namespace "\Valdi\Validator"  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function createValidators(array $validators) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->availableValidators = array();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($validators as $name => $type) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $class                            = '\\Valdi\\Validator\\' . $type;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->availableValidators[$name] = new $class();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Validates a single rule.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $validator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * the validator to use  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string[] $parameters  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * the validation parameters, depending on the validator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $value  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * the value to validate  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return boolean  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * true if the value is valid  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function isValidRule($validator, $parameters, $value) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!array_key_exists($validator, $this->availableValidators)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            throw new ValidatorException('"' . $validator . '" not found as available validator.'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->availableValidators[$validator]->isValid($value, $parameters);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Validates a value via the given rules.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param array $fieldRules  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * the validation rules  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $value  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * the value to validate  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return string[]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * the fields where the validation failed  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function isValidField($fieldRules, $value) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $result = array();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        foreach ($fieldRules as $rule) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $name = $rule;  | 
            
                            
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                            $parameters = array();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (is_array($rule)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $parameters = $rule;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $name       = array_shift($parameters);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $valid = $this->isValidRule($name, $parameters, $value);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if (!$valid) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $result[] = $name;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $result;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Constructor.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function __construct() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $validators = array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'afterDateTime' => 'AfterDateTime', 'alphabetical' => 'Alphabetical',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'alphaNumerical' => 'AlphaNumerical', 'beforeDateTime' => 'BeforeDateTime',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'between' => 'Between', 'boolean' => 'Boolean',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'contains' => 'Contains', 'dateTime' => 'DateTime',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'dateTimeBetween' => 'DateTimeBetween', 'email' => 'Email',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'floating' => 'Floating', 'inSet' => 'InSet',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'integer' => 'Integer', 'inTheFuture' => 'InTheFuture',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'inThePast' => 'InThePast', 'ip' => 'IP',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'ipv4' => 'IPv4', 'ipv6' => 'IPv6',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'lengthBetween' => 'LengthBetween', 'max' => 'Max',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'maxLength' => 'MaxLength', 'min' => 'Min',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'minLength' => 'MinLength', 'olderThan' => 'OlderThan',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'regexp' => 'Regexp', 'required' => 'Required',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'slug' => 'Slug', 'url' => 'Url',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'value' => 'Value', 'youngerThan' => 'YoungerThan'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->createValidators($validators);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Adds additional validator. It can override existing validators as well.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $name  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * the name of the new validator.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param ValidatorInterface $validator  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * the validator to add  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function addValidator($name, ValidatorInterface $validator) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->availableValidators[$name] = $validator;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Performs the actual validation.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param array $rules  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * the validation rules: an array with a field name as key and an array  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * of rules to use for this field; each rule is either a string with the  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * validator name or an array with the validator name as first element and  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 | 
                     * parameters as following elements; example:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    134
                 | 
                                    
                                                     | 
                
                 | 
                     * array('a' => array('required'), 'b' => array(array('min', 1))) | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    135
                 | 
                                    
                                                     | 
                
                 | 
                     * @param array $data  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    136
                 | 
                                    
                                                     | 
                
                 | 
                     * the data to validate as a map  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    137
                 | 
                                    
                                                     | 
                
                 | 
                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    138
                 | 
                                    
                                                     | 
                
                 | 
                     * @return array<string,boolean|array>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    139
                 | 
                                    
                                                     | 
                
                 | 
                     * the validation result having the keys "valid" (true or false) and  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    140
                 | 
                                    
                                                     | 
                
                 | 
                     * the key "errors" containing all failed fields as keys with arrays of the  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    141
                 | 
                                    
                                                     | 
                
                 | 
                     * failed validator names; example where the field "b" from the above sample  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    142
                 | 
                                    
                                                     | 
                
                 | 
                     * failed due to the min validator:  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    143
                 | 
                                    
                                                     | 
                
                 | 
                     * array('valid' => false, errors => array('b' => array('min'))) | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    144
                 | 
                                    
                                                     | 
                
                 | 
                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    145
                 | 
                                    
                                                     | 
                
                 | 
                    public function isValid(array $rules, array $data) { | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    146
                 | 
                                    
                                                     | 
                
                 | 
                        $errors = array();  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    147
                 | 
                                    
                                                     | 
                
                 | 
                        foreach ($rules as $field => $fieldRules) { | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    148
                 | 
                                    
                                                     | 
                
                 | 
                            $value       = isset($data[$field]) ? $data[$field] : null;  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    149
                 | 
                                    
                                                     | 
                
                 | 
                            $fieldErrors = $this->isValidField($fieldRules, $value);  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    150
                 | 
                                    
                                                     | 
                
                 | 
                            if (!empty($fieldErrors)) { | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    151
                 | 
                                    
                                                     | 
                
                 | 
                                $errors[$field] = $fieldErrors;  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    152
                 | 
                                    
                                                     | 
                
                 | 
                            }  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    153
                 | 
                                    
                                                     | 
                
                 | 
                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    154
                 | 
                                    
                                                     | 
                
                 | 
                        return array(  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    155
                 | 
                                    
                                                     | 
                
                 | 
                            'valid' => count($errors) === 0,  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    156
                 | 
                                    
                                                     | 
                
                 | 
                            'errors' => $errors  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    157
                 | 
                                    
                                                     | 
                
                 | 
                        );  | 
            
            
                                                                        
                            
            
                                    
            
            
                | 
                    158
                 | 
                                    
                                                     | 
                
                 | 
                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
                | 
                    159
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
                | 
                    160
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    161
                 | 
                                    
                                                     | 
                
                 | 
                 | 
            
            
                        
This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line.
To visualize
will produce issues in the first and second line, while this second example
will produce no issues.