PHP code island

In PHP, a code island (or code block) contains PHP code.

Description

A PHP page commonly contains a mix of HTML and PHP code.

All of your PHP code must be inside a code island.

PHP code islands must not include HTML, CSS or JavaScript; using these languages inside a code island will trigger a PHP error.

Example

The example below shows a PHP code island inside a paragraph element:

<p>
<?php
  echo "Hello World";
?>
</p>

The above code sample is a mix of HTML (a paragraph tag), and a PHP code island (which will display "Hello World" for the user, inside the paragraph.

The echo keyword generates the text Hello World (the text inside the quotation marks -- not the quotes themselves).

See also

• PHP
• PHP code
• PHP text generation
• Web forms and PHP