a little rusty after time away (post error)

[Q695]

Why are these errors comming from a $_POST variable loader when the post is blank, but solved when it's filled?

( ! ) Notice: Undefined index: x in xxxxxxxxxxxxxxxx on line 6 Call Stack # Time Memory Function Location 1 0.0025 711336 {main}( ) ..\index.php:0 2 0.0205 751136 include( 'xxxxxxxxxxxxxxxx' ) ..\index.php:113

<?php
$x=$_POST["x"];
?> 

 

 

[PaulRyan]

<?PHP

  $x = isset($_POST['x']) ? trim($_POST['x']) : FALSE;


?>

Edited April 9, 2013 by PaulRyan

[Q695]

Oh, you need to do an isset check just to see if a variable is being passed when there isn't one.  When did that change?

Edited April 9, 2013 by Q695

[Q695]

Not sure what the error was, but when I coppied, and pasted from here it became solved without the isset.

Edited April 9, 2013 by Q695

[jcbones]

Its always been there, but since it is a notice, most production servers hide the error.  empty will also work.

[Q695]

When there is a 0 returned, it treats it like false, not like data is being returned.

Edited April 9, 2013 by Q695

[Q695]

Got it

<?php
if (isset($_POST['x']) || isset($_POST['xx']) || isset($_POST['xxx'])){
$x = $_POST['x'];
$xx = $_POST['xx'];
$xxx = $_POST['xxx'];

//actions
?>