Form help

[Jons]

Hi,

I have form that populates an array, but when I try and retrieve the contents of the array, they return as blank.

Form code is

$count="0";
While ($count<$num_rows){
?>
        <div>
        <label><?echo"$Part1[$count]"?></label>
        <input type="checkbox" name="<?echo"$Part1[$count]"?>" >
        </div>
<?
$count++;
}
?>
        <div>
        <button type="submit" class="btn" name="submit">Submit</button>
        </div> 

When I try and access the array with

$name = $_POST[Part1[0]];
echo"1 $name<br>";
$name = $_POST[Part1[1]];
echo"2 $name<br>";
$name = $_POST[Part1[2]];
echo"3 $name<br>";
$name = $_POST[Part1[3]];
echo"4 $name<br>";
$name = $_POST[[Part1[4]];
echo"5 $name<br>";

I get the exact results I entered in the form, but if I try and use ;

$num_rows="5";
$count="0";
While ($count<$num_rows){
        $name = $_POST[Part1[$count]];
        echo"1 $name<br>";   
        $count++;
}

I get blanks.

 

Any assistance for a new coder appreciated.

Jon

[gw1500se]

You don't have your checkbox array specified correctly. Don't confuse the name with the value.

<input type="checkbox" name="Part1[]" value="<?echo"$Part1[$count]"?>" >
        

 

[Jons]

Thanks, that makes sense. The way I had it, the name would be changing each time it cycled rather than putting them into an array?

Not sure why I am still struggling with this....

<?PHP>

$count="0";
While ($count<$num_rows){
?>
        <div>
        <label><?echo"$Part1[$count]"?></label>
        <input type="checkbox" name="Part1[]"  >
        </div>
<?
$count++;
}

<?PHP>


$num_common_parts = "5";  
$count="0";
While ($count<$num_common_parts){
        $name = $_POST['Part1[$count]'];
        echo"Count $count Name $name<br>"; 
        $count++;
}

Still gives no output.

Quote

Count 0 Name
Count 1 Name
Count 2 Name
Count 3 Name
Count 4 Name

 

[gw1500se]

The returned value of the checkbox will exist only if checked. You should use 'isset' to see it if was checked then take appropriate action if it was. You also left off the value parameter. You need both as I showed you.

Edited August 10, 2020 by gw1500se