difference between $variable and @$variable in php

Question

Can you please tell me the difference between $variable and @$variable in php

<?php
 curl function abc
{
 get information of url and return information string
}
$html=abc();
$doc=DOMDocument();
@$doc->LoadHTML($html); 
?>

here if we take normal variable it gives error why its so and whats the difference

`@` is used as error suppressor http://php.net/manual/en/language.operators.errorcontrol.php — M Khalid Junaid, Sep 29 '13 at 18:21
Really don't use that thing. Now you know what it does please remove it from your code and use [`libxml_use_internal_errors()`](http://php.net/manual/en/function.libxml-use-internal-errors.php) instead. — PeeHaa, Sep 29 '13 at 18:24

score 3 · Accepted Answer · answered Sep 29 '13 at 18:21

A @ before a function call means "suppress warnings".

So, @$doc->LoadHTML($html); suppresses warnings from the method call (LoadHTML()).

In general this is a bad idea, because the warnings mean you are doing something wrong, and you would better fix that instead of playing deaf.

score 1 · Answer 2 · answered Sep 29 '13 at 18:21

1

The @ operator tells the compiler to ignore the error that PHP could give, its advised not to use it.

answered Sep 29 '13 at 18:21

George

score 1 · Answer 3 · answered Sep 29 '13 at 18:21

1

Suppress warning when accessing that property, if for instance $html was undefined then no error is displayed, see http://davidwalsh.name/suppress-php-errors-warnings

answered Sep 29 '13 at 18:21

ka_lin

score 0 · Answer 4 · edited May 23 '17 at 12:28

0

@ is called Error Control Operator, it can be prepended before expression to disable error reporting for that expression.

Please see this post for more information: Suppress error with @ operator in PHP

edited May 23 '17 at 12:28

Community

answered Sep 29 '13 at 18:56

Jason OOO

4 Answers4