Why is if else statement not working

[dragrid]

<?php


fwrite(STDOUT, "do you want ans in cel ? type y or N to continue \n");
//$handle = fread(STDIN, 80);
$ansincel =fgets(STDIN);
echo " Plz enter number \n";
//$handle1 = fread(STDIN, 80);
$numdeg = fgets(STDIN);

if ($ansincel = 'y')
{
	$tc = ((5/9)*($numdeg - 32)); // convert to degrees celcius
	fwrite(STDOUT, " the degree in cel is $tc ");
} 
else
{
	$tf = ((9/5)*($numdeg + 32));   // convert to degrees fahrenheit
	fwrite(STDOUT, " the degree in far is $tf ");
}
?>

[Niheel]

change

if ($ansincel = 'y')

to

if ($ansincel == 'y')

[dragrid]

change

if ($ansincel = 'y')

to

if ($ansincel == 'y')

Kub 365 Much appreciated

[dragrid]

Anyone,
Trying to find out why when i made change above ( from = 'y' to == 'y' ) it skips the if solution and keep executing the else portion

[nathj]

I might be missing something but perhaps it should do that. It may be worth changing your if condition to enforce case on both sides of the operator:

if (strtoupper($ansincel) == 'Y')

then you have ruled out any case issues. If you are still not sure what is going on throw in some echo statements just before the if:

echo("ansincel in upper case =" . strtoupper($ansincel));

This will show what the value is before you run your conditional statement.
Hope that helps you out.
nathj

PS If you want more output without having to echo variables all over the place you could write them to a log file. I've got a class that will do that if you need it.

[Dormilich]

it may happen, that hitting enter does not only submit the input, but also appends a line feed character, thus your string would be "y\n", which doesn’t match "y".

try var_dump($ansin cel); to check the variable’s content.