PHP Post CheckBox Returned Empty Array

Question

I have used this to collect the checkbox value array.

    <form action="example.php" method="post" name="deleteform">
    <input type="submit" value="delete"/>

    <table>
    <?php

    foreach ($memArray as $row) {
       echo "<tr align=\"center\">
       <td><input type=\"checkbox\" value=\"".$row['cus_id']."\" name=\"del[]\" /></td>";   
         echo "</tr>";  
    }
    ?>
    </table>
</form

>

if the form is Posted, then do

    $delArray = $_POST['del'];

    print_r($delArray);

But the result returned Array, but nothing inside

I have changed name=del instead of name=del[], and it works . But when i add the [] back it return empty array

Checkboxes which are not checked do not get submitted with the rest of the form. — Marc B
– Marc B, Commented Feb 23, 2012 at 5:23
check form method.. is that post or you have set it to get..? — Rukmi Patel
– Rukmi Patel, Commented Feb 23, 2012 at 5:23
try print_ring the entire $_POST variable. See what you can find there. — Madara's Ghost
– Madara's Ghost, Commented Feb 23, 2012 at 5:28

Rukmi Patel · Accepted Answer · 2012-02-23 05:25:32Z

2

you should check 2 things.

first is form method. whether it is post or get..

second when you submit the page, check box is checked or not. if it is not checked then you can not have array in $_GET or in $_POST

answered Feb 23, 2012 at 5:25

Rukmi Patel

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3 Comments

JBL Over a year ago

Both checked. I m using post and the check box is checked

JBL Over a year ago

Thanks. But still not working, I have changed name=del instead of name=del[], and it works . But when i add the [] back it return empty array

Rukmi Patel Over a year ago

this is something strange but happy that you got the solution.. :)

Kamall A Joshi · Accepted Answer · 2012-02-23 05:53:17Z

2

Here is your code, though i have made changes to loop. checkbox.php is the current file name.

    <?php
    if(isset($_POST['delete']))
    {
        print_r($_POST['del']);
    }
?>
<form action="checkbox.php" method="post" name="deleteform">
<input type="submit" value="delete" name="delete"/>

<table>
<?php

for($i=0;$i<5;$i++) {
   echo "<tr align=\"center\">
   <td><input type=\"checkbox\" value=\"".$i."\" name=\"del[]\" /></td>";
     echo "</tr>";  
}
?>
</table>

Compare it with your code. On submit you'll get definitely get array.

answered Feb 23, 2012 at 5:53

Kamall A Joshi

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2 Comments

JBL Over a year ago

Thanks. But still not working, I have changed name=del instead of name=del[], and it works . But when i add the [] back it return empty array

Kamall A Joshi Over a year ago

My advice please go thru your whole codding.

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