How to run a external program in PHP?

PHP - How to keep program still run when have error

• In the example code: <?php for ($i = 1; $i <=20; $i++) { echo $i . '<br />'; if ($i == 10) { $haha->hoho("hehe"); } } ?> When $i = 10 program will show this error, Call to a member function hoho() on a non-object because $haha is not a object and the program stops running. I want the program to handle this error and continue running to $i=20. How can I do it?

• Answer:

  The Simple answer: Fix your code. Long answer: There is lots of ways to do that, the first thing off the top of my head is to use http://php.net/manual/en/function.set-error-handler.php regardless of your programming pattern. But if you are doing it in OOP you should make use of http://php.net/manual/en/language.oop5.magic.php(http://au2.php.net/manual/en/security.magicquotes.what.php) like http://www.php.net/manual/en/language.oop5.overloading.php#language.oop5.overloading.members and http://www.php.net/manual/en/language.oop5.overloading.php#language.oop5.overloading.members -obviously the $haha needs to be the object in your example. Hint: Using http://php.net/manual/en/language.exceptions.php in magic methods is really good idea. but you can't handle this directly with exception because Internal PHP functions mainly use Error reporting, only modern Object oriented extensions use exceptions.