The End of Line in PHP

The end of a line in multiline text is a special invisible character. In Windows OS it is \r\n, while in Linux it is simply \n.

That is, it is a different character under different operating systems. You can work with different variants of this character, or you can use a special constant PHP_EOL, which on Windows denotes \r\n, and on Linux \n.

Since development is most often done under Windows, and hosting is mainly on Linux - using PHP_EOL is the most optimal option.

Let's, for example, get an array of all lines that contain line breaks:

<?php
	$str = 'text text text';
	var_dump(explode(PHP_EOL, $str));
?>

Or remove all line breaks:

<?php
	$str = 'text text text';
	$str = str_replace(PHP_EOL, '', $str); // get text without line breaks
?>