PHP Syntax

PHP Syntax

PHP code is executed on the server, and the plain HTML result is sent to the

browser.

Basic PHP Syntax

A  PHP  scripting  block  always  starts  with <?php and  ends  with ?>.  A  PHP scripting block can be placed anywhere in the document.

On  servers  with  shorthand  support  enabled  you  can  start  a  scripting  block with <? and end with ?>. For maximum compatibility, we recommend that you use the standard form (<?php) rather than the shorthand form.

<?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 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.

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