CODEWITHSUNDEEP
phpfile
Michael Samuel
Michael Samuel

Reputation: 3920

Simple PHP function to remove the last line from text file not working

I have a text file named test with only 2 lines:

1
2

I want to be able to remove the last line from the file so I use the following function:

<?php

$file = file('test.txt');
array_pop($file);
file_put_contents(implode($file));

?>

For some reason, this does nothing and the file still has the exact lines..am I missing something here?

Upvotes: 0

Views: 3167

Answers (1)

raina77ow
raina77ow

Reputation: 106385

file function only returns you the contents of a file (as an array) - and whatever you do with that array, only changes the array, not the file. To persist the changes, write the contents back to the file:

$filename = 'test.txt';
$arr = file($filename);
if ($arr === false) {
  die('Failed to read ' . $filename);
}
array_pop($arr);
file_put_contents($filename, implode(PHP_EOL, $arr));

Upvotes: 3

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