The feof Function

The feof function checks whether the end of a file has been reached while reading. It takes one parameter - a file pointer that was successfully opened by the fopen function. Returns true if the end of the file has been reached, and false otherwise.

Syntax

phpfeof(resource $handle): bool

Example

Check if the end of the file has been reached while reading:

php<?php
  $file = fopen('test.txt', 'r');
  
  while (!feof($file)) {
    echo fgets($file);
  }
  
  fclose($file);
?>

In this example, we read the file line by line until we reach its end.

Example

Check the state of the file pointer after opening the file:

php<?php
  $file = fopen('empty.txt', 'r');
  var_dump(feof($file));
  fclose($file);
?>

Code execution result for an empty file:

phptrue

Example

Handling an error when opening a file:

php<?php
  $file = @fopen('nonexistent.txt', 'r');
  
  if ($file === false) {
    echo "File not found";
  } else {
    while (!feof($file)) {
      echo fgets($file);
    }
    fclose($file);
  }
?>

Code execution result if the file does not exist:

php'File not found'

See Also