//use EOD function for multiple line variable
$variable=<<<EOD this is line1 this is line2 EOD;

<?php
$var = 'Howdy';
echo <<<EOL
This is output
And this is a new line
blah blah blah and this following $var will actually say Howdy as well
and now the output ends
EOL;

phpCopy<?php
$mystring1 = "This is the first line." . PHP_EOL;
$mystring2 = "This is the second line" . PHP_EOL;
$mystring3 = "This is the third line" . PHP_EOL;
$mystring4 = "This is the fourth line" . PHP_EOL;
$mystring5 = "This is the fifth line";
$mystring1 .= $mystring2 .= $mystring3 .= $mystring4 .= $mystring5;
echo($mystring1);
?>

<?php $var_name=<<<MULTILINENAME
text
MULTILINENAME;
?>

phpCopy<?php
$mystring1 = "This is the first line." . PHP_EOL;
$mystring2 = "This is the second line";
$mystring1 .= $mystring2;
echo($mystring1);
?>

phpCopy<?php
echo("This is the first line \r\nThis is the third line");
?>

phpCopy<?php
echo("This is the first line \nThis is the second line");
?>

phpCopy<?php
echo("This is the first line \n\nThis is the third line");
?>