isset to check varaible

[iammudassir]

i have a field field1 value ="<?php if(isset($_POST['submit'])){echo $row[1]; }?>" $row[1] is result because of a query some times $row[1] is present and some times no if not present it generate an error how i set my php code in value to check after submit is $row[1] is present or not to echo it

[justsomeguy]

If you want to know if $row[1] is set then why are you checking if $_POST['submit'] is set? Why not check for $row[1]?

[iammudassir]

actually i want to check both select and $row[1] because when i press select button it will execute a query and $row[1] is the result of that queryso i want to check if select is pressed and my query has $row[1] then echo it

[thescientist]

if the query never executed, because the form was never submitted, then $row[1] would never have been set, so why not just check for $row[1]? it might help if you post all of your relevant code.

[justsomeguy]

actually i want to check both select and $row[1] because when i press select button it will execute a query and $row[1] is the result of that queryso i want to check if select is pressed and my query has $row[1] then echo it

Fine, then check for both of them. My point is that if $row[1] is not set, and you want to avoid that error message, then you need to check if $row[1] is not set. If you want to check more than just that, then go ahead.