Php - 来自Text文件的echo line 6

How to echo line 6 from Text file?

I have tried this. But i dont know what to do further. This is not working. What to change?

   <?
   $file1 = "file/datum2.html";
   $lines = file($file1);
   foreach($lines as $line_num => $line)
    {
    echo $line[6];
    echo "<br>";
   }

  ?>

Datum2.html:

1-juli-2016 2-juli-2016 3-juli-2016 4-juli-2016 5-juli-2016 6-juli-2016

This is the result now with help

enter image description here

echo implode('<br />', array_slice(file('file/datum2.html'), 0, 6));

OR

echo implode('
', array_slice(file('file/datum2.html'), 0, 6));

<?
$file1 = "file/datum2.html";
$lines = file($file1);
$output = array_slice($lines, 0, 6, true);
 foreach($output as $line_num => $line)
    {
        echo $line[$line_num];
        echo "<br>";
    }

test the code using array_slice with true and without true

<?php
$file1 = "file/datum2.html";
$lines = file($file1);
$i= 0;
foreach($lines as $line_num => $line){
    $i++;
    echo $line[$line_num];
    echo "<br>";
    if($i == 6) break;
}

?>

Try this, it should works

<?php
    $file1 = "file/datum2.html";
   $lines = file($file1);
   $lines = explode(" ",$lines);
   echo $lines[5];
?>