在php中处理数组

Question

I got this 2 array in a form to be process. However, i only manage to get the output from only one of the array. Sample as below :

<inputs id="location" type="text" name="data[]" value=""/>
<input id="shipval" type="text" name="data[][id]" value=""/>

And in the PHP part is below :

foreach ($_POST ["data"] as $id => $subs) {       

            foreach ($subs as $key=>$sub) {

                $subcategory = $sub;

                if($subs['id']=="$subcategory"){
                    echo $sql = " insert into x(kodLebuhraya,kodSeksyen) values ('".$subs['id']."','".$sub."')";echo "<br>";    
                }else{
                    //echo "hi2";
                    echo $sql = " insert into x(kodLebuhraya,kodSeksyen) values ('".$subs['id']."','".$sub."')";echo "<br>";
                }

            }   

        }

It means one location for one shipval. i have multiple input field for location and shipval. Can you guys enlight me which one is wrong. Thanks in advanced.

Answer 1

So basically you need to pass location and shipval in pairs.

Try this structure in HTML:

<label>Set One</label>
<input class="location" type="text" name="data[location][]" value=""/>
<input class="shipval" type="text" name="data[shipval][]" value=""/>
<label>Set Two</label>
<input class="location" type="text" name="data[location][]" value=""/>
<input class="shipval" type="text" name="data[shipval][]" value=""/>
<label>Set Three</label>
<input class="location" type="text" name="data[location][]" value=""/>
<input class="shipval" type="text" name="data[shipval][]" value=""/>

And this code for PHP:

  foreach ($_POST['data']['location'] as $key => $location) {       
        $shipVal = $_POST['data']['shipval'][$key];

        //now you have a pair of $location and $shipVal
        echo $location.' : '.$shipVal.'<hr>';

    }

Avoid using named indexes after unnamed ones ex. <input name="array[][named]" /> you can lose order of fields if one of pair fields is empty.