Code Snippet
Debugging $_REQUEST
This snippet displays a nice list of all submitted data in a transparent box on the top left. Put this snippet preferable directly after <body>.
The box has some basic styling applied so that it will display a dark fixed box on the top left of the document that will automaticly show a scroll-bar if it becomes too long.
<div style="position:fixed; top:0; left: 0; width: 400px; background: rgb(0,0,0,0); background: rgba(0,0,0,0.8); color: green; margin:0px; padding:5px; max-height: 90%; overflow-y:auto;">
<h2 style="margin:0px;color:white;">$ HEADERS:</h2>
<h3 style="margin:5px;color:white;">GET</h3>
<?php
//var_dump($_GET);
foreach($_GET as $name=>$value) {
echo $name." => ";
echo $value."<br />";
}
?>
<h3 style="margin:5px;color:white;">POST</h3>
<?php
//var_dump($_POST);
foreach($_POST as $name=>$value) {
echo $name." => ";
echo $value."<br />";
}
?></div>
Nice example. You can also use $_REQUEST to debug $_GET and $_POST variables on the same time. Furthermore I often use the following code to debug variables:
These three lines of code above are doing exactly the same than the code snippet using a foreach loop.
I find var_dump (which you commented out in your examples) to be much more helpful than looping through the array.
Specifically what I usually do is:
Doing so gives more valuable information about the item you’re dumping, such as what type the item is, etc.
print_r, as another commenter has mentioned, also supplies such information.