getting rid of null values

[dj262501]

I have a php page where user/db info is being passed:

 

<?php
include "include/dbc.php";

include "include/header.inc";

$exerciseid = $_POST["exerciseid"];
$duration = $_POST["duration"];
$distance = $_POST["distance"];
$metric = $_POST["metric"];

echo'<h1>Added Activities</h1>';



// name of array
echo '<h1>Exercise</h1>';
if (is_array($exerciseid)) {
        foreach ($exerciseid as $key => $value) {

        echo $key .' : '. $value .'<br />';

        }
}



// name of array
echo '<h1>Duration</h1>';
if (is_array($duration)) {
        foreach ($duration as $key => $value) {

                        echo $key .' : '. $value .'<br />';

        }
}


// name of array
echo '<h1>Distance</h1>';
if (is_array($distance)) {
        foreach ($distance as $key => $value) {

                        echo $key .' : '. $value .'<br />';

        }
}

// name of array
echo '<h1>Metric</h1>';
if (is_array($metric)) {
        foreach ($metric as $key => $value) {

                        echo $key .' : '. $value .'<br />';

        }
}

?>

 

And here is the output from that code:

 

Added Activities

 

Exercise

0 : Canoeing, on camping trip

1 : Canoeing, rowing, over 6 mph, vigorous effort

2 : Canoeing, rowing, crewing, competition

3 : Canoeing, rowing, light effort

4 : Canoeing, rowing, moderate effort

5 : Diving, springboard or platform

6 : Kayaking

7 : Sailing, boat/board, windsurfing, general

8 : Sailing, in competition

9 : Skiing, water

10 : Ski-mobiling, water

11 : Skin diving, scuba diving, general

12 : Snorkeling

13 : Surfing, body or board

14 : Swimming laps, freestyle, fast, vigorous effort

15 : Swimming laps, freestyle, light/moderate effort

16 : Swimming, backstroke, general

17 : Swimming, breaststroke, general

18 : Swimming, butterfly, general

19 : Swimming, leisurely, general

20 : Swimming, sidestroke, general

21 : Swimming, sychronized

22 : Swimming, treading water, fast/vigorous

23 : Swimming, treading water, moderate effort

24 : Water polo

25 : Water volleyball

26 : Whitewater rafting, kayaking, or canoeing

 

Duration

Canoeing, on camping trip : 20

Canoeing, rowing, over 6 mph, vigorous effort :

Canoeing, rowing, crewing, competition :

Canoeing, rowing, light effort :

Canoeing, rowing, moderate effort :

Diving, springboard or platform :

Kayaking :

Sailing, boat/board, windsurfing, general :

Sailing, in competition :

Skiing, water :

Ski-mobiling, water :

Skin diving, scuba diving, general :

Snorkeling :

Surfing, body or board :

Swimming laps, freestyle, fast, vigorous effort :

Swimming laps, freestyle, light/moderate effort :

Swimming, backstroke, general :

Swimming, breaststroke, general :

Swimming, butterfly, general :

Swimming, leisurely, general :

Swimming, sidestroke, general :

Swimming, sychronized :

Swimming, treading water, fast/vigorous :

Swimming, treading water, moderate effort :

Water polo :

Water volleyball :

Whitewater rafting, kayaking, or canoeing :

 

Distance

Canoeing, on camping trip : 20

Canoeing, rowing, over 6 mph, vigorous effort :

Canoeing, rowing, crewing, competition :

Canoeing, rowing, light effort :

Canoeing, rowing, moderate effort :

Diving, springboard or platform :

Kayaking :

Sailing, boat/board, windsurfing, general :

Sailing, in competition :

Skiing, water :

Ski-mobiling, water :

Skin diving, scuba diving, general :

Snorkeling :

Surfing, body or board :

Swimming laps, freestyle, fast, vigorous effort :

Swimming laps, freestyle, light/moderate effort :

Swimming, backstroke, general :

Swimming, breaststroke, general :

Swimming, butterfly, general :

Swimming, leisurely, general :

Swimming, sidestroke, general :

Swimming, sychronized :

Swimming, treading water, fast/vigorous :

Swimming, treading water, moderate effort :

Water polo :

Water volleyball :

Whitewater rafting, kayaking, or canoeing :

 

Metric

0 : mile

1 : mile

2 : mile

3 : mile

4 : mile

5 : mile

6 : mile

7 : mile

8 : mile

9 : mile

10 : mile

11 : mile

12 : mile

13 : mile

14 : mile

15 : mile

16 : mile

17 : mile

18 : mile

19 : mile

20 : mile

21 : mile

22 : mile

23 : mile

24 : mile

25 : mile

26 : mile

 

 

As you can see, null values are being passed as well. I am hoping that someone can show me the correct way to use php unset to get rid of these null values. Thank you.

[ShibSta]

You'll need to add a conditional within' your loop if( empty( $var ) && $var != 0 )

[dj262501]

You'll need to add a conditional within' your loop if( empty( $var ) && $var != 0 )

 

Where in the loop should I put this?