Question

UPDATE: I realized that the issue was I was using print instead of echo to print the data, so it was showing the array instead of the data within it. Thanks a ton guys!

I currently have a text file that looks like this:

0,0,0,0,0
0,0,0,0,0
0,0,0,0,0
0,0,0,0,0
0,0,0,0,0

And I’m using this function:

function rFile($fileName){
$resultF = fopen($fileName, "r") or die("can't open file");
$array = array(); //Create the first dimension of a 2D array
$i=0;
while(!feof($resultF)){
  $line = fgets($resultF);
  $line = trim($line, "\n");
  $tokens = explode(",",$line);
  $array[$i]=array(); //Create the second dimension of the 2D array
  $tokenCount = sizeof($tokens);
  for($j=0; $j<$tokenCount; $j++){
    $array[$i][$j] = $tokens[$j];
  }
  $i++;
 }
return $array;
  }

Essentially, it’s supposed to read through the file, explode each “0” and store it in a 2D array, $array. For some reason it returns this:

Array[0]
Array[1]
Array[2]
....etc etc

Anyone know what I did wrong?

Answer 1

You’re going about it the hard way, by using for loops and counters. By using PHP’s $array[] = $val append syntax, you can save a lot of effort here.

// all the file handling code...

while(!feof($resultF)){
  $line = fgets($resultF);
  $line = trim($line, "\n");
  $tokens = explode(",",$line);

  // Append the line array.
  $array[] = $tokens; //Create the second dimension of the 2D array
}

return $array;

Or to be even more concise:

$array[] = explode(",",$line);