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Fixed the PHP Outputting 'Undefined Index' Issue #27

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Fixed the PHP Outputting 'Undefined Index' Issue #27

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2019410
I added default values for the variables in the results.php file to p…
invalid-email-address Feb 5, 2019
ff0a5ad
I added default values for the variables in the results.php file to p…
invalid-email-address Feb 5, 2019
bba689b
I have added default values to the results.php page to stop the PHP o…
invalid-email-address Feb 5, 2019
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1 change: 1 addition & 0 deletions CrookedStyleSheets
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Submodule CrookedStyleSheets added at e93f3a
1 change: 1 addition & 0 deletions index.html
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@

<!DOCTYPE html>
<html lang="en">
<head>
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150 changes: 133 additions & 17 deletions results.php
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Original file line number Diff line number Diff line change
@@ -1,5 +1,119 @@
<?php
session_start();

/* Just to prevent the PHP output, we
give every variable a default value.
*/
$started = "false";
$device = "unknown";
$link1_clicked = "false";
$link2_clicked = "false";
$link3_clicked = "false";
$s1_hovered = "false";
$s2_hovered = "false";
$s3_hovered = "false";
$s4_hovered = "false";
$duration = 0;
$text_input = "false";
$checkbox = "false";
$browser_chrome = "false";
$browser_firefox = "false";
$browser_edge = "false";
$orientation = "unknown";
$width = "unknown";
$height = "unknown";

if( isset($_SESSION["started"]) ){

$started = $_SESSION["started"];
}

if( isset($_SESSION["device"]) ){

$device = $_SESSION["device"];
}

if( isset($_SESSION["link1_clicked"]) ){

$link1_clicked = $_SESSION["link1_clicked"];
}

if( isset($_SESSION["link2_clicked"]) ){

$link2_clicked = $_SESSION["link2_clicked"];
}

if( isset($_SESSION["link3_clicked"]) ){

$link3_clicked = $_SESSION["link3_clicked"];
}

if( isset($_SESSION["s1_hovered"]) ){

$s1_hovered = $_SESSION["s1_hovered"];
}

if( isset($_SESSION["s2_hovered"]) ){

$s2_hovered = $_SESSION["s2_hovered"];
}

if( isset($_SESSION["s3_hovered"]) ){

$s3_hovered = $_SESSION["s3_hovered"];
}

if( isset($_SESSION["s4_hovered"]) ){

$s4_hovered = $_SESSION["s4_hovered"];
}

if( isset($_SESSION["duration"]) ){

$duration = $_SESSION["duration"];
}

if( isset($_SESSION["text_input"]) ){

$text_input = $_SESSION["text_input"];
}

if( isset($_SESSION["checkbox"]) ){

$checkbox = $_SESSION["checkbox"];
}

if( isset($_SESSION["browser_chrome"]) ){

$browser_chrome = $_SESSION["browser_chrome"];
}

if( isset($_SESSION["browser_firefox"]) ){

$browser_firefox = $_SESSION["browser_firefox"];
}

if( isset($_SESSION["browser_edge"]) ){

$browser_edge = $_SESSION["browser_edge"];
}


if( isset($_SESSION["orientation"]) ){

$orientation = $_SESSION["orientation"];
}

if( isset($_SESSION["width"]) ){

$width = $_SESSION["width"];
}

if( isset($_SESSION["height"]) ){

$height = $_SESSION["height"];
}

?>

<!DOCTYPE html>
Expand All @@ -19,29 +133,31 @@
<h1>Results</h1>
<b>When the value is empty or PHP notices appears, it means that the value is false or the webpage hasn't been visited yet.</b>
<ul>
<li>Last visited: <b><?php print $_SESSION["started"]?></b></li>
<li>Device Type: <b><?php print $_SESSION["device"]?></b></li>
<li>Link1 (google.de) clicked: <b><?php print $_SESSION["link1_clicked"] ?></b></li>
<li>Link2 (foo.bar) clicked: <b><?php print $_SESSION["link2_clicked"]?></b></li>
<li>Link3 (github.com) clicked: <b><?php print $_SESSION["link3_clicked"]?></b></li>
<li>Last visited: <b><?php print $started;?></b></li>
<li>Device Type: <b><?php print $device;?></b></li>
<li>Link1 (google.de) clicked: <b><?php print $link1_clicked;?></b></li>
<li>Link2 (foo.bar) clicked: <b><?php print $link2_clicked;?></b></li>
<li>Link3 (github.com) clicked: <b><?php print $link3_clicked;?></b></li>
<li></li>
<li>Field 1 hovered: <b><?php print $_SESSION["s1_hovered"]?></b></li>
<li>Field 2 hovered: <b><?php print $_SESSION["s2_hovered"]?></b></li>
<li>Field 3 hovered: <b><?php print $_SESSION["s3_hovered"]?></b></li>
<li>Field 4 hovered: <b><?php print $_SESSION["s4_hovered"]?></b></li>
<li>Field 1 hovered: <b><?php print $s1_hovered;?></b></li>
<li>Field 2 hovered: <b><?php print $s2_hovered;?></b></li>
<li>Field 3 hovered: <b><?php print $s3_hovered;?>

</b></li>
<li>Field 4 hovered: <b><?php print $s4_hovered;?></b></li>
<li></li>
<li>Duration field was hovered for at least <b> <?php print $_SESSION["duration"] / 10?></b> seconds (raw value: <?php print $_SESSION["duration"]?>) [approx. 1s resolution]
<li>Duration field was hovered for at least <b> <?php print $duration / 10?></b> seconds (raw value: <?php $duration?>) [approx. 1s resolution]
<li></li>
<li>"test" was typed into input box: <b><?php print $_SESSION["text_input"]?></b></li>
<li>Checkbox was checked: <b><?php print $_SESSION["checkbox"]?></b></li>
<li>"test" was typed into input box: <b><?php print $text_input?></b></li>
<li>Checkbox was checked: <b><?php print $checkbox?></b></li>
<li></li>
<li>Calibri font existing: <b><?php isset($_SESSION["font1"]) ? print $_SESSION["font1"] : print true?></b></li>
<li></li>
<li>Browser Chrome: <b><?php print $_SESSION['browser_chrome']?></b></li>
<li>Browser Firefox: <b><?php print $_SESSION['browser_firefox']?></b></li>
<li>Browser Edge: <b><?php print $_SESSION['browser_edge']?></b></li>
<li>Orientation: <b><?php print $_SESSION['orientation']?></b></li>
<li>Resolution: <b><?php print $_SESSION['width']?>x<?php print $_SESSION['height']?></b> (only often used widths are supported, your screen resolution is greater than or equal to shown resolution.)</li>
<li>Browser Chrome: <b><?php print $browser_chrome?></b></li>
<li>Browser Firefox: <b><?php print $browser_firefox?></b></li>
<li>Browser Edge: <b><?php print $browser_edge?></b></li>
<li>Orientation: <b><?php print $orientation?></b></li>
<li>Resolution: <b><?php print $width?> x <?php print $height?></b> (only often used widths are supported, your screen resolution is greater than or equal to shown resolution.)</li>
</ul>
</div>

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9 changes: 9 additions & 0 deletions screen.css
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Original file line number Diff line number Diff line change
Expand Up @@ -180,6 +180,15 @@
}
}


@media( min-device-width: 1200px){

#width::after{

content: url("track.php?width=1200")
}
}

@media (min-device-width: 1280px) {
#width::after {
content: url("track.php?width=1280");
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25 changes: 25 additions & 0 deletions track.php
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Original file line number Diff line number Diff line change
@@ -1,6 +1,30 @@
<?php
session_start();

/*Need to check if isset before adding defaults
if we don't it resets the values.*/

/*
$_SESSION['orientation'] = "unknown";
$_SESSION['width'] = "unknown";
$_SESSION['height'] = "unknown";
$_SESSION['duration'] = 0;
$_SESSION["device"] = "unknown";
$_SESSION["link1_clicked"] = "false";
$_SESSION["link2_clicked"] = "false";
$_SESSION["link3_clicked"] = "false";
$_SESSION["s1_hovered"] = "false";
$_SESSION["s2_hovered"] = "false";
$_SESSION["s3_hovered"] = "false";
$_SESSION["s4_hovered"] = "false";
$_SESSION["browser_chrome"] = "false";
$_SESSION["browser_firefox"] = "false";
$_SESSION["browser_edge"] = "false";
$_SESSION["text_input"] = "false";
$_SESSION["checkbox"] = "false";
$_SESSION["last_visit"] = "unknown";
*/

$action = $_REQUEST['action'];

if(!empty($_REQUEST['orientation']))
Expand All @@ -15,6 +39,7 @@
if(!empty($_REQUEST['duration']))
$_SESSION['duration'] = $_REQUEST['duration'];


switch($action)
{
case "screen_start":
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