PHP Syntax

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In this tutorial, we will see the PHP syntax in details.To write PHP code you need to surround it using PHP tags. This will differentiate PHP code with other codes.

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1 There are four types of PHP syntax for tags.
1.1 Long form syntax –
2 Using semicolon:

There are four types of PHP syntax for tags.

PHP syntaxes are as below:

  • Long form syntax –

<?php  .....  ?>

This is Most commonly used syntax. All the PHP codes can be written inside these tags.

Example:

<?php
echo "Hello from PHP."; //This will print string on browser.
?>

Output: Hello from PHP.

  • Short form (SGML style) –

<? ... ?>

This is a short form syntax. To use this syntax we have to change “short_open_tag” to “ON” in php.ini file.

Example:

<?
echo "Hello from PHP."; //This will print a string on then browser.
?>

Output: Hello from PHP.

 

  • ASP style tags – 

<% ... %>

To use ASP style tag, we have to enable “Allow ASP-style <% %> tags.” in php.ini file. This can be enable by removing semicolon before “Allow ASP-style <% %> tags.” in php.ini.

 

  • HTML script tag –

<script language="php" >...</script>

Using semicolon:

After writing all the statements, instructions, command we have to end them with a semicolon.

In further tutorials, we will see in details about the other aspects of PHP and their use in day to day programming.


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