PHP Heredoc & Nowdoc With Examples
In this article, we are going to learn PHP heredoc and nowdoc strings to improve the readability of the code. Let’s get started:
Table of Contents
Usually, we write multiple strings like this one:
$html = '<ul>'; $html .= '<li>product 1</li>'; $html .= '<li>product 2</li>'; $html .= '<li>product 3</li>'; $html = '</ul>'; echo $html;
Have a look at another example:
$he = 'Adam'; $text = "$he said, \"PHP is awesome". echo $text;
Using herodoc and nowdoc we can write same code in the cleanest way.
Heredoc and nowdocs are the cleanest ways to format multiline strings in PHP. Heredoc strings are like double-quoted strings without escaping. Have a look at Heredoc structure:
$variable = <<<IDENTIFIER YOUR CODE/TEXT GOES HERE IDENTIFIER;
Now take a look at an example:
$html = <<<HTML <ul> <li>product 1</li> <li>product 2</li> <li>product 3</li> </ul> HTML; echo $html;
Let’s take a look at another example:
$he = 'Adam'; $text = <<<TEXT $he said<br> PHP is awesome TEXT; echo $text;
Nowdoc strings are like single-quoted strings without escaping. In nowdoc variable names remain intact. Have a look at the structure:
$variable = <<<'IDENTIFIER' // single quotes around identifier YOUR CODE/TEXT GOES HERE IDENTIFIER;
Have a look at an example:
$name = 'Adam'; $text = <<<'TEXT' My name is $name TEXT; echo $text; // output: 'My name is $name'
That’s all. Thanks for reading.
Md Obydullah is a software engineer and full stack developer specialist at Laravel, Django, Vue.js, Node.js, Android, Linux Server, and Ethichal Hacking.