PHP FILTER_VALIDATE_URL Filter

Complete PHP Filter Reference

Definition and Usage

The FILTER_VALIDATE_URL filter validates value as an URL.

• Name: "validate_url"
• ID-number: 273

Possible  flags:

• FILTER_FLAG_SCHEME_REQUIRED - Requires URL to be an RFC compliant URL (like http://example)
• FILTER_FLAG_HOST_REQUIRED - Requires URL to include host name (like http://www.example.com)
• FILTER_FLAG_PATH_REQUIRED - Requires URL to have a path after the domain name (like www.example.com/example1/test2/)
• FILTER_FLAG_QUERY_REQUIRED - Requires URL to have a query string (like "example.php?name=Peter&age=37")

Example 1

<?php
$url = "http://www.example.com";

if(!filter_var($url, FILTER_VALIDATE_URL))
 {
 echo "URL is not valid";
 }
else
 {
 echo "URL is valid";
 }
?>

The output of the code will be:

URL is valid

Example 2

<?php
$url = "example.php?name=Peter&age=37";

if(!filter_var($url, FILTER_VALIDATE_URL, 
FILTER_FLAG_QUERY_REQUIRED))
{
echo "URL is not valid";
}
else
{
echo "URL is valid";
}
?>

The output of the code will be:

URL is valid

Complete PHP Filter Reference

Ektron CMS400.NET Version 7.6 delivers all of the flexibility and features you need to deploy the Web site you want, quickly and efficiently. learn more...       6 ways to take your site to the next level with Ektron: Create site stickiness through social networking. Keep it personal, relevant and interactive and they'll come back for more. Keep it open. Your site needs to be ready and able to connect to outside services. Ektron's open API gives you maximum flexibility. Streamline content and document management. Users need to quickly and intuitively find and add information. Empower your content authors. Reduce IT bottlenecks by allowing business users to create and edit Web content and forms. Climb to the top of search rankings. SEO tools, URL aliasing and eCommerce for your digital marketing strategy Add powerful Web 2.0 tools like blogs, wikis, forums, geo-mapping, rating systems and RSS feeds easily. See why there are 20,000+ Ektron integrations worldwide. Request an INSTANT DEMO or download a FREE TRIAL today.