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+--- Thread: Multidimensional array generate (/showthread.php?tid=20506)
Multidimensional array generate - El Forum - 07-12-2009
[eluser]karloff[/eluser]
Hi,
i'm trying to create a search feature which bring back results of how close you are to a particular place. my problem is that I need to add the info of each place into a multidimensional array, with the added field of the distance, so i can sort it....
this is my code so far but It keep generating php errors,
Is this possible or am i going about it the wrong way?
Code:
$item = $this->cfmmodel->get_all_places();
$postcode = $this->cfm_lib->clean_postcode($_POST['postcode']);
$long = $this->postcodemodel->getLong($postcode);
$lat = $this->postcodemodel->getLat($postcode);
$data['multi'] = Array(
foreach ($items as $item)
{
array(
'id' => $item->id,
'name' => $item->name,
'distance' => $this->cfm_lib->getDistance($lat[0]->Lat, $long[0]->Long, $item->Lat, $item->Long),
),
}
);Multidimensional array generate - El Forum - 07-12-2009
[eluser]darkhouse[/eluser]
Why does it have to be multidimensional? What's wrong with doing this?
Code:
foreach ($items as &$item){
$item['distance'] = $this->cfm_lib->getDistance($lat[0]->Lat, $long[0]->Long, $item->Lat, $item->Long);
}Notice the & in front of $item in the foreach statement. This references each $item so it will affect the $items array. But now you just have one array with a distance value for each element.
Or, if you're using php4 still, you could do this:
Code:
for($i = 0; $i < count($items); $i++){
$items[$i]['distance'] = $this->cfm_lib->getDistance($lat[0]->Lat, $long[0]->Long, $items[$i]->Lat, $items[$i]->Long);
}Same thing, really. I just prefer the foreach method, it's cleaner.
Multidimensional array generate - El Forum - 07-12-2009
[eluser]karloff[/eluser]
hey man, this sounds ideal but i'm having trouble implementing it
Code:
Cannot use object of type stdClass as array in ......why would that be??
ps. its php5 but thanks for the insight for the diff between php 4 and 5
Multidimensional array generate - El Forum - 07-12-2009
[eluser]darkhouse[/eluser]
Oh try this instead...
Code:
foreach ($items as &$item){
$item->distance = $this->cfm_lib->getDistance($lat[0]->Lat, $long[0]->Long, $item->Lat, $item->Long);
}Multidimensional array generate - El Forum - 07-12-2009
[eluser]karloff[/eluser]
got it sorted
Code:
$item->distance = $this->cfm_lib->getDistance($lat[0]->Lat, $long[0]->Long, $item->Lat, $item->Long);
}Multidimensional array generate - El Forum - 07-12-2009
[eluser]karloff[/eluser]
ha ha, thanks for the reply, i just posted the exact same thing as you at the same time.... made me laugh...
cheers
Multidimensional array generate - El Forum - 07-12-2009
[eluser]darkhouse[/eluser]
Haha yeah, I just posted that. I shoulda caught that when I first posted.