在PHP中连续存储数组的最后一行文件

Question

So i have a little issue with some PHP read functionality. What I am trying to do is basically grab data into an array from a file that is being continuously updated from a python script reading values from a micro controller. So basically, the file would look something like this.

ID, Datetime, Count, Name
ID, Datetime, Count, Name
ID, Datetime, Count, Name

What i need is for it to read the new line that is being added in (eof) and store it into an array. So what i have so far is allowing read access into the file

  <?php
$myfile = fopen("read.txt", "r")

For the storing the lines in an array i figured something like an array map would be efficient

$result = array();
 // some loop
  $parts = array_map('trim', explode(':', $line_of_text, 2)));
  $result[$parts[0]] = $parts[1];

However i am not to sure on how to structure the loop to have it read the new line that is being updated in the file without exiting the loop.

while (feof($file)) {
}

fclose($file);
?>

Any help would be appreciated!!

Answer 1

Can you do this?

1. Read the lines of the file to an array using $lines = file("filename");.
2. Use the $lines[count($lines) - 1] to get the last line?
3. You can even trim off the empty lines before you wanna do this.

Trim Empty Lines

Use this function:

$lines = array_filter($lines);