Question

I am having trouble generating a multidimensional array from a csv file. I need to have the output ‘grouped’ by country as each country may have multiple networks. Some rows do not have a value for country or zone as they are related to the row above it. Unfortunately this is how i receive the csv file and there is no way of changing the output. Any feedback or pointers would be appreciated.

Snippet of csv file…

Country|Zone|Network|Video|Voice
Afghanistan,5,Afghan Wireless,No,Yes
,,Roshan,No,Yes
Antigua,4,Digicel,No,Yes
Argentina,5,Telecom Personal,Yes,Yes
,,Movistar,No,Yes
,,Movistar2,Yes,Yes
Aruba,4,Digicel,No

Ideal Output

Array (
    [0] => Array (
        [country] => Afghanistan
        [zone] => 5
        [network] => Array (
            [0] => Array (
                [name] => Afghan Wireless
                 => No
                [voice] => Yes
            )
            [1] => Array (
                [name] => Roshan
                 => No
                [voice] => Yes
            )
        )
    )
    [1] => Array (
        [country] => Antigua
        [zone] => 4
        [network] => Array (
            [0] => Array (
                [name] => Digicell
                 => No
                [voice] => Yes
            )
        )
    )
    etc...
)

Answer 1

<?php 

$csvArray=array();//to store final data 
$networkArray=array();//to serve as temporar buffer

if (($handle = fopen("file.csv", "r")) !== FALSE) 
{
     fgetcsv($handle, 1000, ",");//skip the first line cause contains labels only
    //iterate all ther line 
    while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) 
    { 
        //if a new country
        if($data[0]!=='')
        {  
            /*get last key assigned to the previous country*/
            $key=array_pop(array_keys($csvArray)); 
            /*store the buffer, at the very begining no last country exists 
            so this network will be stored in a null key, will delete it later*/
            $csvArray[$key]['network']=$networkArray; 
            //emty the buffer
            $networkArray=array(); 
            //now we are done with previous country and will store the new one
            $csvArray[]=Array('country'=>$data[0],'zone'=>$data[1]);        
        }//@if ends 
            //Put to buffer network, video and voice
            $networkArray[]=Array('name'=>$data[2],'video'=>$data[3],'voice'=>$data[4]);     
    }//@while ends
    fclose($handle);
}//@outer if ends

//store the last network buffer
$key=array_pop(array_keys($csvArray));  
$csvArray[$key]['network']=$networkArray;   
//delete the null key set in the begining
array_shift($csvArray); 

//show the array
echo '<pre>'; 
print_r($csvArray); 

?>