printing $_POST data to text file

[anfetienne]

hi i've got this code that writes data to a text file. When i test it with a standard array eg array(1,2,3) it works perfectly fine but when i try it with $_POST['myData'] i get the error message

Warning: Invalid argument supplied for foreach() in /home/theau10/public_html/resources/captionSaveB.php on line 23

Warning: Invalid argument supplied for foreach() in /home/theau10/public_html/resources/captionSaveB.php on line 38

Warning: Invalid argument supplied for foreach() in /home/theau10/public_html/resources/captionSaveB.php on line 53

here is my code.....can someone point me to the incorrect code....i cant see where its going wrong

$file = "upload/$random_digit/gallery.txt";
$imgHandle = fopen($file, 'w+') or die("can't open file");
 
    $iv= 1;
    $lQ = ',';
    $imgAry = $_POST['imageT'];
 
    $stringData = "&imgLoc=";
    fwrite($imgHandle, $stringData);
 
        foreach($imgAry as $key => $value){
            fwrite($imgHandle,$value .$lQ);
        }
 
fclose($imgHandle);
 
$tmbHandle = fopen($file, 'a+') or die("can't open file");
 
    $iv= 1;
    $tQ = ',';
    $tmbAry = $_POST['thumbnailT'];
 
    $stringData = "&tmbLoc=";
    fwrite($tmbHandle, $stringData);
 
        foreach($tmbAry as $key => $value){
            fwrite($tmbHandle,$value .$tQ);
        }
 
fclose($tmbHandle);
 
$capHandle = fopen($file, 'a+') or die("can't open file");
 
    $iv= 1;
    $cQ = ',';
    $capAry = $_POST['captionT'];
 
    $stringData = "&imgCap=";
    fwrite($capHandle, $stringData);
 
        foreach($capAry as $key => $value){
            fwrite($capHandle,$value .$cQ);
        }
 
fclose($capHandle);
 

[Dormilich]

it seems that the input values ($_POST['…']) are not arrays. you can check with var_dump().

[anfetienne]

on the form the names are set on imageT[], thumbnailT[] and captionT[].

once submitted i test to make sure that they are arrays and use print_r and they show as an array perfectly fine

[Dormilich]

@anfetienne
even when you test it before the foreach loop?

[anfetienne]

yup even when i test it before the loop it shows that they are all arrays with all the values i enter from my form