the message is
Notice: Undefined index: flag in C:\xampp\htdocs\myfiles\mobile tracking\index.php on line 63
my code is
<?php
$stat=$_REQUEST['flag'];
if($stat=="FAILED")
{
echo "Username/password doesnot exists";
}
?>
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Bernhard Hofmann
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Have a look at http://www.php.net/manual/en/reserved.variables.request.php – Reger Feb 06 '14 at 15:55
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`Line 63`, ok let's do the math here: `63-7=56` - guess what's missing? You guessed it: **56** lines of code. Not to mention your form and/or method used. This one's the ever-classic "Can of Worms" question. You need to show us full code, or forever hold your peace, *as it were*. – Funk Forty Niner Feb 06 '14 at 16:03
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> on line 63 No one can help you, cause this isn not your full code. Post index.php and we can take a look at it. – battleck Feb 06 '14 at 15:52
3 Answers
1
The global variable $_REQUEST['flag'] is probably having value NULL. This is the reason you are getting this error. Well, try using isset(). to check whether the variable is having any value or not.
Nishant Ghodke
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1It does not have `null` value. It does not exist. That's not the same thing! – Daniel W. Feb 06 '14 at 15:58
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@DanFromGermany Thanks. I was unsure back then, the reason I added -- "probably". – Nishant Ghodke Oct 09 '18 at 10:29
0
You should check if the $_REQUEST['flag'] variable has been set:
<?php
$stat= ( isset($_REQUEST['flag']) ? $_REQUEST['flag'] : null) ;
if($stat=="FAILED")
{
echo "Username/password doesnot exists";
}
?>
vanMartijn
- 172
- 5
0
You received a notice because you didn't initialized the values of the array. Use this construction to prevent them.
if (! array_key_exists('flag', $_REQUEST)) {
$_REQUEST['flag'] = whatever value goes here;
}