Examples of using the zf framework validator (custom validator and validator chain)

This article describes how to use the zf framework validator (user-defined validator and validator chain). For more information, see The code is as follows:
Require_once ("Zend/Loader. php ");
// Introduce the validator class and the validator function class (Int), and the custom interface class;
Zend_Loader: loadClass ('zend _ validate ');
Zend_Loader: loadClass ('zend _ Validate_Int ');
Zend_Loader: loadClass ('zend _ Validate_Interface ');
// Added the UDF class GongBeiNum [public Multiple]
Class GongBeiNum implements Zend_Validate_Interface
{
// Declare the error message report attribute in the interface
Protected $ _ messages = array ();
// Declare the verification method in the interface
Public function isValid ($ num)
{
If (! ($ Num % 3 = 0 )&&! ($ Num % 5 = 0 ))
{
// If the verification fails, the error message returned value is used to report the attribute to the error message.
$ This-> _ messages [] = "the value you entered is not a public multiple of 3 and 5! ";
// Terminate the program
Return false;
}
// Returns true
Return true;
}
// Define the interface error reporting method
Public function getMessages ()
{
Return $ this-> _ messages;
}
// Define the extraction error message (optional)
Public function getErrors ()
{

}
}
// Out-of-class definition detection public multiples method
Function check_num ($ num)
{
// Instantiate the validator class
$ Validate = new Zend_Validate ();
// Add the validator function class and the custom validator function class to form the validator chain
$ Validate-> addValidator (new Zend_Validate_Int ())
-> AddValidator (new GongBeiNum ());
// Check parameters
If (! $ Validate-> isValid ($ num ))
{
// If the error loop error message is returned
Foreach ($ Validate-> getMessages () as $ value)
{
Echo $ value ."
";
Return false;
}
}
}

// Specify the judgment value
$ Num1 = '15 ';
// Run the verification method
Check_num ($ num1 );
?>