Basic PHP Syntax
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 PHPfile 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 useused 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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