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PHP 5 Tutorial

PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages.

PHP is a widely-used, free, and efficient alternative to competitors such as Microsoft's ASP.


Easy Learning with "Show PHP"

Our "Show PHP" tool makes it easy to learn PHP, it shows both the PHP source code and the HTML output of the code.

Example

<!DOCTYPE html>
<html>
<body>

<?php
echo "My first PHP script!";
?>


</body>
</html>
Run example »

Click on the "Run example" button to see how it works.

Start learning PHP now!

PHP 5 References

At W3Schools you will find complete references of all PHP functions:

Array functions

Calendar functions

Date functions

Directory functions

Error functions

Filesystem functions

Filter functions

FTP functions

HTTP functions

LibXML functions

Mail functions

Math functions

Misc functions

MySQLi functions

SimpleXML functions

String functions

XML Parser functions

Zip functions


PHP Exercises

Test Yourself With Exercises

Exercise:

Insert the missing part of the code below to output "Hello World".

 "Hello World";


PHP 5 Quiz Test

Test your PHP skills at W3Schools!

Start PHP Quiz!


PHP 5 Exam - Get Your Diploma!

W3Schools Certification

W3Schools' Online Certification

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The HTML Certificate documents your knowledge of HTML.

The CSS Certificate documents your knowledge of advanced CSS.

The JavaScript Certificate documents your knowledge of JavaScript and HTML DOM.

The jQuery Certificate documents your knowledge of jQuery.

The PHP Certificate documents your knowledge of PHP and SQL (MySQL).

The XML Certificate documents your knowledge of XML, XML DOM and XSLT.

The Bootstrap Certificate documents your knowledge of the Bootstrap framework.