split an array based on string values?

[stephdumais]

Hi!

Let's say I have an array such as this:

$projects = array(
'media1-client1-project1',
'media1-client1-project2',
'media1-client2-project1',
'media2-client1-project1',
'media2-client2-project1',
'media3-client1-project1',
'media4-client1-project1',
'media4-client2-project1',
);

I would like to have this generate distinct multi-dimensional arrays, based on the dash string delimiter:

$media1 = array(
'client1'=>array(
'project1',
'project2'
),
'client2'=>array(
'project1',
),
);

$media2 = array(
'client1'=>array(
'project1',
)
);

...and so on.
How would I go about this?

Any help would be much appreciated, thank you!

[devinemke]

why not keep it all in one big multi-array?

$projects = array(
'media1-client1-project1',
'media1-client1-project2',
'media1-client2-project1',
'media2-client1-project1',
'media2-client2-project1',
'media3-client1-project1',
'media4-client1-project1',
'media4-client2-project1',
);

foreach ($projects as $value)
{
	$explode = explode('-', $value);
	$multi_projects[$explode[0]][$explode[1]][] = $explode[2];
}

echo '<pre>';
print_r($multi_projects);
echo '</pre>';

[stephdumais]

First of all, thank you!

But how do I extract specific arrays from this bigger multi-array?

For example, how would I create an array of just the second portion of the initial array's string, the clients in this case?

[devinemke]

foreach ($projects as $value) 
{ 
    $explode = explode('-', $value); 
    $multi_projects[$explode[0]][$explode[1]][] = $explode[2];
	$just_clients[$explode[1]][] = $explode[2];
}

[konsu]

Originally posted by devinemke

foreach ($projects as $value) 
{ 
    $explode = explode('-', $value); 
    $multi_projects[$explode[0]][$explode[1]][] = $explode[2];
	$just_clients[$explode[1]][] = $explode[2];
}

[/B]

but $just_clients would end up having clients for all projects. but i guess $multi_projects[$name] would give you clients for project called $name.

[stephdumais]

Ok, I followed up the code:

foreach ($projects as $value) {
$explode = explode('-', $value);
$multi_projects[$explode[0]][$explode[1]][] = $explode[2];
$just_projects[$explode[1]][] = $explode[2];
}

with the following:

		foreach ($just_projects as $project){
					foreach ($project as $project_name){
					echo $project_name."<br>";
					}
				}

So this gives me the same list as the initial array but without the media and client parts of the string. This is great but how do I just get the ones from specific media or clients?

[stephdumais]

Ah! Lists were the answer! Thank you Pickle!
see:

foreach($projects as $value)
{
list($media,$client,$project) = explode('-',$value);
$projects_by_media[$media][] = $value;
$projects_by_client[$client][] = $value;
}

foreach ($projects_by_media[$media] as $foo){ echo "<li>".$foo; }

or for clients:

foreach ($projects_by_client[$client] as $foo){ echo "<li>".$foo; }