"\r\n"
echo "<br>";
<?php echo "Hello world this is example \r\n in php."; echo "<br>"; echo nl2br("You will find the \n newlines in this string \r\n on the browser window."); ?>
<?php echo nl2br("One line.\nAnother line."); ?>
//let a variable contain multiple line //add <br> tag in string $variable = "123 <br> ";