sorting keys in an array

lorddraco98

I have an array:

$test1[0]= "hi";
$test1[1]= "hello";
$test1[2]= "cool man";

now, i'm going through and deleteing things from this array using a search.
so say my search turns up that I need to delete $test1[1]
i have this code then:

//array before deletion
$test1[0]= "hi";
$test1[1]= "hello";
$test1[2]= "cool man";
//delete value in array matched by search
unset($test1[1]);

now my array looks like:

$test1[0]= "hi";
$test1[2]= "cool man";

what I need to do is to numerically order the keys of this array now, so I end up with:

$test1[0]= "hi";
$test1[1]= "cool man";

how would I do this?

cgraz

This should work

$i=0;

foreach($test1 as $value) {
   $test1[$i] = $value;
   $i++
}

Cgraz

lorddraco98

wow, thanks bro
you know what my problem is? I don't think of the easy stuff, I was going for these complicated sorting and resizing functions and trying to make them hehe

btw, to make your code work and have the keys in numerical order, i just had to add a ksort($test1) at the end, but it works great, thanks!

cgraz

no problem. Most people (including myself) have the tendancy to make things harder than they should be. That's why forums are great!

Cgraz

lorddraco98

Originally posted by cgraz
no problem. Most people (including myself) have the tendancy to make things harder than they should be. That's why forums are great!

Cgraz

definately, man this made my night. my script is almost complete.
it's a script that takes an mp3 playlist file(winamp), sorts out unpopular songs, creates checkboxes to allow the admin to select the songs he wants deleted, then deltes the unpopular songs from the listand recreates the playlist file. I'm doing this for an internet radio station I listen to.
Cool project, just I've never done anything this hard, but I'm learning tons!!
Thanks again for the help!

bobthedog

Couldn't you just use [man]array_values/man to re-index the array?

This will just return all of your values from your original array into a new array with a new incremental index value applied, i.e.

$test1[0]= "hi";
$test1[1]= "hello";
$test1[2]= "cool man";
//delete value in array matched by search
unset($test1[1]);

$test1 = array_values($test1);

Just saves a few lines of code 🙂