Using an array

mrgrammar

I'm just learning how to use arrays. All I need is a place to start, so here's the situation.

I have a db field that has multiple parts separated by double colon ( :: ). I can explode the field into an array. That's no problem.

$splitadpg = "$qryprd[addpages]";
$prodparts = array();
$prodparts = explode("::", $splitadpg);

I then want to print each of the parts.

echo $prodparts[x]."<br>";
(where x is the number from the array)

The various records have a different number of parts in the addpages field. Some may range from 1-3 items when exploded while others may contain 7-10 items when exploded.

How to I code the echo so that it will print each of the parts no matter how many or few of them there are?

Mr. Grammar

superwormy

Use a foreach() loop.

mrgrammar

Thank you for replying. I knew to use the foreach() loop. I didn't know how to do the counter since the number of array values could differ from record to record. In the end, I came up with this.

$splitadpg = "$qryprod[addpages]";
$prodparts = array();
$prodparts = explode("::", $splitadpg);

$limit = count($prodparts);
for ($i=0; $i<$limit; $i++)
{
echo $prodparts[$i]."<br>";
}

kevinsequeira

$splitadpg = "$qryprod[addpages]";
$prodparts = array();
$prodparts = explode("::", $splitadpg);
foreach($prodparts as $key=>$value){
echo "prodparts[".$key."] is ".$value."<BR>";
}

//or use print_r($prodparts);

reg
kevin

superwormy

Ummm... you don't need a counter, and you dont need to know the number of elements in an array if you use foreach ()...

Part of the point of foreach() is so thta you can loop through an array of unknown size and look at each key and value pair. And you havn't used one... are you sure you knew to use it? :-)

mrgrammar

Actually, Keith, I didn't know to use it. It was just my best guess. I've only been programming PHP for 2 1/2 months. I was thrown into a project (that is now completed) and got to learn as I went.

When it comes to programming, there are 'experts', there are 'perts', and then there's the rest of us. I'm working hard to achieve 'pert' status. 🙂

Brian