The ZF framework uses an example of a validator

  This article mainly introduces the ZF framework for use with the validator (custom calibrator and validator chain), need friends can refer to the following

  Code as follows: <?php require_once ("zend/loader.php"); The introduction of the validator class and the function Class (INT) of the calibrator, and the custom interface class; Zend_loader::loadclass (' zend_validate '); Zend_loader::loadclass (' Zend_validate_int '); Zend_loader::loadclass (' Zend_validate_interface '); Add custom Validator Feature Class (gongbeinum) [Common multiple] class Gongbeinum implements Zend_validate_interface { //Declaration interface error message Reporting properties   Protected $_messages = Array ();  //the validation method in the interface  public function IsValid ($num)  {  if (! $num%3==0) &&! ($num%5==0))     {   //if the checksum fails, the error message returns the value to the error message report properties     $this-> _messages[] = "The number you entered is not a common multiple of 3 and 5!" ";    //terminating procedure    return false;  }  //Back true   return true; &NBSP}  //The error method that defines the interface  public function getmessages ()  {  return $this-> _messages;  }  / /Definition Fetch error message (can not)  public function geterrors ()  {  &NBSP}}//class definition detection Common multiple method function Check_num ($num) { // Instantiate Validator class   $Validate = new Zend_validate ();  //Add Validator Feature class, add customThe function class of the validator, form the calibrator chain   $Validate-> addvalidator (New Zend_validate_int ())      -> Addvalidator (new Gongbeinum ());  //Check parameter  if (! $Validate-> isValid ($num))    { //If error loop error message and output    foreach ($ Validate-> getmessages () as $value)      {    echo $value. "<br>";     return false;   &NBSP} &nbsp}  //Specify the value of the judgment $num 1 = ' 15 '; Run Check method Check_num ($num 1);?>