errors = array(); $this->sanitized = array(); $this->format = $format; } public function validate($request) { /** Validate the given request * value dict against the validator rules. * * @param $request a dict like $_REQUEST, $_GET or $_POST * @returns true if valid, false else. */ $this->errors = array(); $sanitized = array(); foreach($this->format as $fieldname => $validators) { $err = false; $sanitized_f = false; foreach($validators as $validator) { if ($validator == 'required') { if (! isset($request[$fieldname])) { $err = 'n\'est pas renseigné'; break; } else { $sanitized_f = $request[$fieldname]; } } else { if (isset($request[$fieldname]) and $request[$fieldname]) { $val = $request[$fieldname]; try { $sanitized_f = $this->validate_field($validator, $val); } catch (FieldValidationError $e) { $err = $e->getMessage(); break; } } } } if ($err) { $this->errors[$fieldname] = $err; } else { $sanitized[$fieldname] = $sanitized_f; } } $this->sanitized = $sanitized; return (count($this->errors) == 0); } public function validate_field($validator, $content) { /** Returns sanitized value if ok, throws a FieldValidationError otherwise */ if (isset(self::$field_validators[$validator])) { $f = self::$field_validators[$validator]; return $f($content); } else { throw new FieldValidationError("'$validator' validator does not exist"); } } public function errors() { /** An associative array form-key => error */ return $this->errors; } public function sane_values() { return $this->sanitized; } public function print_errors() { /** raw & quick HTML errors printing, for case that shouldn't happen to users. */ echo '

';
		var_dump($this->errors());
		echo '

'; } public static function register($name, $function) { self::$field_validators[$name] = $function; } } FormValidator::$field_validators = array(); FormValidator::register( 'numeric', function ($v) { $sanitized = floatval($v); if (($sanitized === false) || (!is_numeric($v))) { throw new FieldValidationError('n\'est pas une valeur numérique'); } else { return $sanitized; } } ); FormValidator::register( 'positive', function ($v) { if ($v < 0) { throw new FieldValidationError('est négatif'); } else { return floatval($v); } } ); // Intended to validate checkbox which takes NULL for unchecked FormValidator::register( 'boolean', function ($v) { if ($v == NULL) { return false; } else { return true; } } ); // Validate that it is not a file path FormValidator::register( 'basename', function ($v) { if (!strpos($v, '/') && !strpos($v, '\\')) { return $v; } else { throw new FieldValidationError('est un chemin'); } } ); ?>