Get Domain Name Using Regex. Regex -A-Za-z09-1 63. String domain emailSubstringindexOfAt 1.
Extracting the Host from a URL. Last Tld must be at least two characters and a maximum of 6 characters. If preg_matchhttphttpsftpA-Z0-9A-Z0-9_-A-Z0-9A-Z0-9_-di url echo Your url is ok.
Group 3 a-z25 - Lastly the third group matches the top level domain.
The domain name should be a-z A-Z 0-9 and hyphen- The domain name should between 1 and 63 characters long. Create a regular expression to check the valid domain name as mentioned below. Extracting domain names from email addresses with the help of regular expressions takes just a nanosecond once you have the formula. There are over 1 trillion 1e12 SQLite databases in active use.