[RESOLVED] Need help understanding code

mrgrammar

I've been studying various php code to learn more and better techniques. I came accross a couple of pieces today that I'm not familiar with.

FIRST

$memberConfig['Username']==$memberID ? TRUE : FALSE)

I understand the first part. It is an array variable. What does $memberID ? TRUE : FALSE mean?

SECOND

I've noticed in various code pieces that some function calls have an @ in front of them. For example,

@mysql_query();

What is the purpose of the @?

Res

First:
This is a "short hand" or ternary "if" statement.

http://php.net/manual/en/language.operators.comparison.php

Specifically:

<?php
// Example usage for: Ternary Operator
$action = (empty($_POST['action'])) ? 'default' : $_POST['action'];

// The above is identical to this if/else statement
if (empty($_POST['action'])) {
    $action = 'default';
} else {
    $action = $_POST['action'];
}

?>

Second:
The @ symbol is used for error suppression. It prevents the function it's prefixed to from throwing all errors and warnings.
http://php.net/manual/en/language.operators.errorcontrol.php

mrgrammar

Thanks!

bradgrafelman

Res;10971862 wrote:
Second:
The @ symbol is used for error suppression. It prevents the function it's prefixed to from throwing all errors and warnings.
http://php.net/manual/en/language.operators.errorcontrol.php

...which is, in my opinion, rather sloppy coding. In other words, you should never have to use it.