打印txt列的元素

Question

得到这段代码php

header("Content-Type: application/octet-stream");

$file = $_GET["file"] .".pdf";
header("Content-Disposition: attachment; filename=" . urlencode($file));   
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");
header("Content-Description: File Transfer");            
header("Content-Length: " . filesize($file));
flush(); // this doesn't really matter.
$fp = fopen($file, "r");
while (!feof($fp))
{
    echo fread($fp, 65536);
    flush(); // this is essential for large downloads
} 
fclose($fp); 

我想打印连续的第一列，用逗号和空格分隔元素，以获得此结果：

$data ='
one;uno
two;dos
three;tres
four;cuatro
'

请帮忙吗？我这样做但我不能：

one, two, three, four

Answer 1

尝试修改后的代码版本

$data ='one;uno
two;dos
three;tres
four;cuatro';
$coma=array();
$line = explode("\n", $data);

for($i = 0; $i<count($line); $i++) {        
$item = explode(";", $line[$i]);
$coma[]=  $item[0];
}

echo implode(',',$coma);