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  1. PO
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    <p>Because you are assigning <code>$yourname</code> and <code>$compname</code> in the first two lines:</p> <pre><code>$yourname = htmlspecialchars($_POST['name']); $compname = htmlspecialchars($_POST['compName']); </code></pre> <p><strong>UPDATE</strong> You can check if these are set in POST, and therefore not need to check them later:</p> <pre><code>$yourname = isset($_POST['name']) ? htmlspecialchars($_POST['name']) : "oops, no value"; $compname = isset($_POST['compName']) ? htmlspecialchars($_POST['compName']) : "oops, no value"; </code></pre> <p>They will always be set, even if NULL or empty. So, your later calls to <code>isset()</code> will always be true. Instead, you may check if they are empty with the <code>empty()</code> function:</p> <p><strong>UPDATE</strong> Not necessary according to corrections in comments. Your <code>isset()</code> should work.</p> <pre><code>// Check with empty() // but still won't work properly. keep reading below... function nametest() { if (!empty($yourname)){ $yourname = $response[0];} else { $yourname = $response[1];; } } </code></pre> <p>However, there is another problem here of variable scope. The variables are not available inside the function unless you either pass them in as parameters or use the <code>global</code> keyword:</p> <pre><code>// $yourname is passed as a function argument. function nametest($yourname, $response) { if (!empty($yourname)){ $yourname = $response[0];} else { $yourname = $response[1];; } } </code></pre> <p>Getting there... Now your function assigns <code>$yourname</code>, but it doesn't return or print any value. Add a return statement, and then you can echo out the result:</p> <pre><code>function nametest($yourname, $response) { if (!empty($yourname)){ $yourname = $response[0];} else { $yourname = $response[1];; } // Add a return statement return $yourname; } // Now call the function, echo'ing its return value echo nametest($yourname, $response); </code></pre>
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    1. This table or related slice is empty.
    1. POphp lessons/practice. need help understanding if/else
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    1. USMichael Berkowski
    1. USMichael Berkowski
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COAccording to [PHP.net docs `isset()` should check for `NULL`](http://us3.php.net/manual/en/function.isset.php)
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      1. USCharles Sprayberry
    2. COAlso you lost parameter in the last line.
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      1. USzerkms
    3. COi thought that, although i set $yourname to equal the data that would be passed from the form on prev page, that thats what i was checking for as far as being empty or not. so although i do understand what you are saying about the $yourname still being set to equal the $_GET method, then i should check the $_GET itself? and then if it IS set, then asign its value to something else?
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      1. USsomdow
 

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