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function stringToArrayFin($file){
$expData = explode('","',$file);
$dataArray = array();
$i=1;
$nR = array();
foreach($expData as $nData){
if($i<=14){
$nR[]=$nData;
}
$i++;
if($i==15){
$dataArray[]=$nR;
$nR = array();
$i=1;
}
}
return $dataArray;
}
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$arr = array ( 0 => "lorem", 1 => "ipsum", 2 => "dolor");
$str = implode (", ", $arr);
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$array = [
0=>["id"=>1,"name"=>"GST","amount"=>10,'percent'=>5],
1=>["id"=>2,"name"=>"CGST","amount"=>10,'percent'=>5]
];
echo implode(",", array_column($array, "id"));
echo implode(",", array_column($array, "name"));
echo implode(",", array_column($array, "amount"));
echo implode(",", array_column($array, "percent"));
echo array_sum(array_column($array, "amount"));