[RESOLVED] simple test result not appearing in browser

scottpoliseno

I have finally made the commitment to learn PHP. I am really excited and know the question I am going to ask is an extreme newb question.

I was asked to assign values to 2 variables (quiz). Then use a comparison operator to test whether the first value is 1. the same as second 2. less than the second.. etc...

I understand the comparison operators but I am not sure how to output the result... Isn't it nice the book discusses the comparison operators and their results but does not demonstrate how to output the result... then asks me to do it in the quiz...

Here is what I have (please don't laugh) :- )

<?php

$pie = 3.14;
$my_age = 32;

echo $pie == $my_age;

Nothing displays in the browser as I know my syntax is wrong where I wrote echo...

I am guessing you can't output the result unless this comparison is part of an if statement or some other statement or function...

Thanks,

Scott

NogDog

Normally you use comparisons in conjunction with some control structure, such as:

$pie = 3.14;
$my_age = 32;
if($pie > $my_age)
{
   $relation = "greater than";
}
elseif($pie == $my_age)
{
   $relation = "equal to";
}
else
{
   $relation = "less than";
}
echo "pie is $relation my age";

scottpoliseno

Thank you! That is what I thought after reading some more and putting it into a real world context...

Thanks again!

bradgrafelman

Don't forget to mark this thread resolved.

cgraz

If you're just getting a blank screen, you likely have error reporting turned off. Try adding this at the top of your scripts while developing to save you some debugging time

ini_set( 'display_errors', 1 );

Piranha

cgraz wrote:
If you're just getting a blank screen, you likely have error reporting turned off. Try adding this at the top of your scripts while developing to save you some debugging time
ini_set( 'display_errors', 1 );

And below that add the following to be sure to get all errors

error_reporting(E_ALL);

bradgrafelman

Of course, if it's a parse error or anything like that, ini_set() and error_reporting() won't do anything, at which point you'll need to actually enable these two directives (in your php.ini or in a .htaccess file if PHP is installed as an Apache module).

scottpoliseno

Man... what a first lesson. Thank you to everyone for their input. It is greatly appreciated!

Scott