A simple php custom exception class

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Release： 2016-07-25 09:03:59

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/**
* Customize an exception handling class
*/
class MyException extends Exception
{
// Redefine the constructor to make message a property that must be specified
public function __construct ($message, $code = 0) {
// Customized code
// Make sure all variables are assigned correctly
parent::__construct($message, $code);
}
// Customized string output Style
public function __toString() {
return __CLASS__ . ": [{$this->code}]: {$this->message}n";
}
}
* Create a class for testing exception handling mechanism
*/
class TestException
{
function __construct($str) {
if($str == 1)
throw new MyException('The parameter cannot be 1',1);
elseif( $str == 2)
throw new MyException('The parameter cannot be 2',2);//Throw 2 exceptions
else
echo $str;
}
}
try {
$o = new TestException(2);
} catch (MyException $e) { // Catch exception
echo $e;
}
?>

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一个简单的php自定义异常类

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