php-regexHow to use PHP regex to match http or https?

The following example code uses PHP regex to match http or https:

$url = "https://www.example.com";

if (preg_match("/^(http|https):\/\/.*/", $url)) {
    echo "URL matches http or https";
}

Output example

URL matches http or https

Code explanation

1. $url = "https://www.example.com"; - This line assigns the value of the URL to the variable $url.
2. if (preg_match("/^(http|https):\/\/.*/", $url)) { - This line uses the preg_match() function to check if the URL matches the regular expression /^(http|https):\/\/.*/. The ^ character indicates the start of the string, the (http|https) part matches either http or https, the :\/\/ part matches the :// part of the URL, and the .* part matches any character (including none) until the end of the string.
3. echo "URL matches http or https"; - This line prints out the message URL matches http or https if the URL matches the regular expression.

Helpful links

• PHP preg_match() Function
• Regular Expressions Tutorial

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