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php custom exception

Abdul Bari Shaikh answered on August 24, 2022 Popularity 8/10 Helpfulness 5/10

answer php custom exception

php custom exception

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<?php
/**
* Here defining a class for custom exception
*/
class CustException extends Exception
{
// Here we are redefining the exception message so it is not optional
public function __construct($exmsg, $val = 0, Exception $old = null) {
// random code goes here
$exmsg = 'Default';
// ensure assignment of all values correctly
parent::__construct($exmsg, $val, $old);
}
// representing the custom string object
public function __toString() {
return __CLASS__ . ": [{$this->code}]: {$this->message}\n";
}
public function custFunc() {
echo "Insert any custom message here\n";
}
}
/**
* This class to test the exception
*/
class ExceptionTest
{
public $var;
const NO_EXCEPTION = 0;
const CUST_EXCEPTION = 1;
const DEF_EXCEPTION = 2;
function __construct($val = self::NO_EXCEPTION) {
switch ($val) {
case self::CUST_EXCEPTION:
// throw custom exception
throw new CustException('1 is considered as invalid', 5);
break;
case self::DEF_EXCEPTION:
// throw default one.
throw new Exception('2 is considered an invalid parameter', 6);
break;
default:
// Will not throw any exception and creates an object here
$this->var = $val;
break;
}
}
}
// Example 1
try {
$new = new ExceptionTest(ExceptionTest::CUST_EXCEPTION);
} catch (CustException $exp) { // This exception will be caught
echo "Test custom exception is caught\n", $exp;
$exp->custFunc();
} catch (Exception $exp) { // This is skipped
echo "Default exception is caught here\n", $exp;
}

Popularity 8/10 Helpfulness 5/10 Language php

Source: Grepper

Tags: exception php

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Contributed on Aug 24 2022

Abdul Bari Shaikh

0 Answers Avg Quality 2/10

php custom exception

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