A PHP scripting block always start with <?php and end with ?>. A PHP scripting block
can be placed anywhere in the document.
On servers with shorthand support enable you can start a scripting block with <? and end
with ?>.
For maximum compatibility,we recommend that you use the standard form (<?php) rather
than
<?php
?>
A PHP file normally contains HTML Tags,just like an HTML file,and some PHP scripting
code.
Below ,we have an example of a simple PHP script which sends the text “Hello World” to
the browser:
<html>
<body>
<?php
echo “Hello World”;
?>
</body>
</html>
Each code line in PHP must end with a semicolon.The semicolon is a separator and is use
used to distinguish one set of instructions from another.
There are two basic statements to output text with PHP: echo and print.In the example
above we have used the echo statement to output the text “Hello World”.
Note:
The file must have a .php extension.If the file has a .html extension,the PHP code will not
be executed.