Php $_GET issue
Question
foreach ($_GET as $field => $label)
{
$datarray[]=$_GET[$field];
echo "$_GET[$field]";
echo "<br>";
}
print_r($datarray);
This is the output I am getting. I see the data is there in datarray but when
I echo $_GET[$field]
I only get "Array"
But print_r($datarray)
prints all the data. Any idea how I pull those values?
OUTPUT
Array (
[0] => Array (
[0] => Grade1
[1] => ln
[2] => North America
[3] => yuiyyu
[4] => iuy
[5] => uiyui
[6] => yui
[7] => uiy
[8] => 0:0:5
)
)
Solution
EDIT: When I completed your test, here was the final URL:
This is probably a malformed URL. When you pass duplicate keys in a query, PHP makes them an array. The above URL should probably be something like:
This will create individual entries for most of the fields, and make $_GET['answer'] be an array of the answers provided by the user.
Bottom line: fix your Flash file.
OTHER TIPS
Use var_export($_GET)
to more easily see what kind of array you are getting.
From the output of your script I can see that you have multiple nested arrays. It seems to be something like:
$_GET = array( array( array("Grade1", "ln", "North America", "yuiyyu", "iuy", "uiyui", "yui","uiy","0:0:5")))
so to get those variables out you need something like:
echo $_GET[0][0][0]; // => "Grade1"
calling echo on an array will always output "Array". print_r (from the PHP manual) prints human-readable information about a variable.
Use <pre>
tags before print_r
, then you will have a tree printed (or just look at the source. From this point you will have a clear understanding of how your array is and will be able to pull the value you want.
I suggest further reading on $_GET
variable and arrays, for a better understanding of its values
Try this:
foreach ($_GET as $field => $label)
{
$datarray[]=$_GET[$field];
echo $_GET[$field]; // you don't really need quotes
echo "With quotes: {$_GET[$field]}"; // but if you want to use them
echo $field; // this is really the same thing as echo $_GET[$field], so
if($label == $_GET[$field]) {
echo "Should always be true<br>";
}
echo "<br>";
}
print_r($datarray);
It's printing just "Array" because when you say
echo "$_GET[$field]";
PHP can't know that you mean $_GET
element $field
, it sees it as you wanting to print variable $_GET
. So, it tries to print it, and of course it's an Array, so that's what you get. Generally, when you want to echo an array element, you'd do it like this:
echo "The foo element of get is: {$_GET['foo']}";
The curly brackets tell PHP that the whole thing is a variable that needs to be interpreted; otherwise it will assume the variable name is $_GET
by itself.
In your case though you don't need that, what you need is:
foreach ($_GET as $field => $label)
{
$datarray[] = $label;
}
and if you want to print it, just do
echo $label; // or $_GET[$field], but that's kind of pointless.
The problem was not with your flash file, change it back to how it was; you know it was correct because your $dataarray variable contained all the data. Why do you want to extract data from $_GET
into another array anyway?
Perhaps the GET variables are arrays themselves? i.e. http://site.com?var[]=1&var[]=2
It looks like your GET argument is itself an array. It would be helpful to have the input as well as the output.