How can the user prevent an extra line break from being added at the end of each message in the text file?

To prevent an extra line break from being added at the end of each message in the text file, the user can trim the message before writing it to the file. This will remove any extra whitespace characters, including line breaks, at the beginning and end of the message. 

$message = "This is a message without an extra line break at the end";
$message = trim($message) . PHP_EOL;

$file = fopen("messages.txt", "a");
fwrite($file, $message);
fclose($file);

Keywords

PHP file handling newline character rtrim() file_put_contents()

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