Are line break commands invisible but still present in text files in PHP?

Line break commands are invisible characters that indicate the end of a line in a text file. In PHP, line breaks can be present in text files even though they are not visible when viewing the file. To remove line breaks from a text file in PHP, you can use the `str_replace()` function to replace the line break command with an empty string. 

<?php
$file = 'example.txt';
$content = file_get_contents($file);
$content = str_replace("\n", "", $content);
file_put_contents($file, $content);
?>

Keywords

line break invisible characters text files PHP programming

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