Form: $headerValues=array();
$headerValues[1][2]="Test";
...
....
echo "<input type=\"hidden\" name=\"ArrayData\" value=\"$headerValues\"/>";
echo "<input type=\"submit\" name=\"submit\" value=\"Submit\" />";
How do I read headerValues on FORM POST , I see as ARRAY when I use this code
foreach (array_keys($_POST) as $key) {
$$key = $_POST[$key];
print "$key is ${$key}<br />";
print_r(${$key});
}
The problem is you're outputting the string "ARRAY" as the value of your field. This is what happens when you cast an array to a string in PHP. Check the HTML source next time you have similar problems, it's a pretty crucial step in debugging HTML.
Use this instead:
echo "<input type=\"hidden\" name=\"ArrayData\" value=\"", implode(' ', $headerValues), '"/>';
The way you handle the input is also needlessly complex, this would suffice:
foreach($_POST as $key => $value)
echo "$key is $value<br />";
You can use:
$headerValues=htmlspecialchars(serialize(array('blah','test')));
echo "<input type=\"hidden\" name=\"ArrayData\" value=\"$headerValues\"/>";
echo "<input type=\"submit\" name=\"submit\" value=\"Submit\" />";
to get
$value = unserialize($_POST['ArrayData']);
You need to write out multiple <input name="ArrayData[]"> elements, one for each value. The empty square brackets signify to PHP that it should store each of these values in an array when the form is submitted.
$headerValues=array('blah','test');
for ($headerValues as $value) {
echo "<input type=\"hidden\" name=\"ArrayData[]\" value=\"$value\"/>";
}
Then $_POST['ArrayData'] will be an array you can loop over:
foreach ($_POST['ArrayData'] as $i => $value) {
echo "ArrayData[$i] is $value<br />";
}
