Question

i have a problem on my friends server when testing my php code on it.(it works fine in my local server).

there is a form that contain checkbox inputs like

when submitting the form:

1. In my server : print_r($_POST) prints:
   Array ( [names] => Array ( [0] => john [1] => sam ) )
2. In his server : print_r($_POST) prints:
   Array ( [names] => Array )

and Array is a string not an array !

his php version is 5.2.17

<form method="post">
john <input type="checkbox" name="names[]" value="john"/>
sam <input type="checkbox" name="names[]" value="sam"/>
moh <input type="checkbox" name="names[]" value="moh"/>
<input type="submit"/>
</form>
<?php 
print_r($_POST);
?>

Answer 1

From comments of first post here is the answer:

You are doing this which is wrong: $_POST = array_map('stripslashes',$_POST);

That’s exactly the cause of this problem, using stripslashes on every element of $_POST is worng, stripslashes works on strings and an array in string is equal to “Array” so that function is doing the convert of your array to "Array", you should write a custom function and check if the element is not an array use stripslashes or if it is use the array_map again, like this:

<?php

function stripslashes_custom($value){
    if(is_array($value)){
        return array_map('stripslashes_custom', $value);
    }else{
        return stripslashes($value);
    }
}

$_POST = array_map('stripslashes_custom', $_POST);

?>

The reason of different results on array input for stripslashes function is probably due the different php versions …