[RESOLVED] Empty Array item?

[virginiamonkeys]

I have this:

<?php
print "
<UL>
";

$akatowns = array($akatown1, $akatown2, $akatown3, $akatown4, 
$akatown5, $akatown6, $donotuse1, $donotuse2);

$specificareas = file('../arealist/'.$areafile.'-list.txt');

$specificareamerge = array_merge($specificareas, $akatowns);

for ($i=0; $i<count($specificareamerge); $i++) {
  $specificareamerge[$i] = trim($specificareamerge[$i]);
}

$specificunique = array_unique($specificareamerge);

sort ($specificunique);
foreach ($specificunique as $specificarea) 
{ 
    print '<LI>'.$specificarea.'</LI>'; 
} 

print "
</UL>";

?>

Unfortunately, some of the variables in $akatowns are empty, so I get the first line as an empty bullet

<LI> </LI>

How do I get this to ignore empty variables, or strip out the empty ones?

Or whatever needs to be done to get it to look proper.

Thanks.

[planetsim]

foreach ($specificunique as $specificarea) 
{ 
    if (!empty($specificarea))
        print '<LI>'.$specificarea.'</LI>'; 
}  

That will display only the values that arent empty, you can then from there use [man]unset[/man]

[virginiamonkeys]

Like this?

sort ($specificunique);
foreach ($specificunique as $specificarea) 
{ 
    if (!empty($specificarea))
        print '<LI>'.$specificarea.'</LI>';
    if (empty($specificarea))
        unset($specifcarea);
var_dump($specificarea);
}

I ask because when I check the var_dump of the $specificarea it shows variable [0] as empty.

Did I do it right?

[virginiamonkeys]

I had a spelling error above, but even when correcting it, it didn't change things.

I'm trying this if else below and it still is counting the same number of variables before and after the unset.

What to do?

$specificunique = array_unique($specificareamerge);

sort ($specificunique);
foreach ($specificunique as $specificarea) 
{ 
    if (!empty($specificarea))
{
        print '<LI>'.$specificarea.'</LI>';
}
    else 
{
        unset($specificarea);
}
var_dump($specificarea);
}

var_dump($specificunique);

$specificunique = array_merge($specificunique);

var_dump($specificunique);

[toplay]

You want to change this:

foreach ($specificunique as $specificarea)

To this:

foreach ($specificunique as $key => $specificarea)

Then change this:

unset($specificarea);

to this:

unset($specificunique[$key]);

Why do you have this line?

$specificunique = array_merge($specificunique);

You don't need it!

hth.

Edit:

If you had that array_merge() because you want to organize the array numerically again without any gaps, then do:

$specificunique = array_values($specificunique);

🙂

[virginiamonkeys]

That worked!

I had that extra line in there to reset the variables so it would count continuously from 0 to completion without any missing keys.

However, I realize now that as long as the counter is working fine I can perform the rest of my page outline fine. I need the counter so I can divide the results into even columns.

[toplay]

Good, I'm glad you got it working.

I updated my previous post to handle the organizing of the array keys using array_values().