Regular expression are a great tool in the programming toolbox; and, they are amazing for string parsing. Because regular expressions are evaluated from left to right in a greedy fashion, we can have our regular expression pattern match parts of the domain moving from left to right; first, we'll match the protocol, then the domain name, then the rest of the string: Notice in this code that our regular expression matches the three crucial parts of the domain. And if I had to take a wild guess, Id bet that the code you put on your website is more than. Com ou sem DDI 55 (com ou sem + e/ou 00) Which means you likely compounded your other problems into this one. Or does everyone just use regular expressions or even worse simple string comparison? This post just saved me a few minutes years after the fact. Ha! Are you talking about getting it out of Anchor tags in a chunk of content? Not on the website. I then just created a webpage on my website.
xampp or on your website or both? The question is where to get the domainMatch function. In this tutorial we are going to cover more advance topics and compile search patters for emails, domain names, etc. The first task in our list would be to build a regex that would match a email address. Why dont second unit directors tend to become full-fledged directors? A common task is matching a domain name or a URL to see if it's associated with a specific domain name. www.example.com One, the External Links plugin, looks for tags for outbound links, and will add rel=nofollow or other attributes depending on the domain. For the record, I'm a fan of java.net.URL too! The advertisements are provided by Carbon, but implemented by regex101.No cookies will be used for tracking and no third party scripts will be loaded. If you really don't want to use a library, and insist on reinventing the wheel, then at least do something like the following: Essentially, you are delegating the extraction of the subdomain/domain part of the URL to the browser's URL parsing logic, which is MUCH better than anything you will ever write.
Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. The same RegExp as in anubhava's answer, only added support for protocol-relative URLs like //google.com: Here's a solution ignoring everything before ://. Understand Smart Contracts by Learning Solidity Basics, AI-100: Analyze solution requirements: Set 1 (2/2), Ten interesting features from various modern languages, Mettalex to Use DIA Oracles to Expand Markets Offering, Getting Started With PyvcloudA Python Library, Sorting Algorithms in PythonQuicksort worst-case, randomized version and three-way. Your regex expression works pretty well. Oh forget it.
(You must be signed in to vote). str_replace(array(https://, http://), , $url), PHP_URL_HOST); Do you have any better suggestion that will not go a miss on any form of url so the domain grabbing would be a 100% guarantee with your suggested code ?
*\.amazon\.com$/i might work, or it might not though an expression like that would work. You then act on the domain name correctly for the domain name. Yes, because you are hard-coding a value into the variable $url. Well, if we use the Java class, java.net.URL, we can offload that heavy lifting. You have three sentences that want to be related to each other, but arent in a meaningful way. If you had read the manual over parse_url, you would have already known the extension doesnt matter, especially if you are asking for the PHP_URL_HOST specifically. Look this doesnt work: I get error: Laymen's description of "modals" to clients, in cricket, is it a no-ball if the batsman advances down the wicket and meets fulltoss ball above his waist. These are examples of why I'm insisting you must treat a domain name as a data structure, rather than as a simple string. It knows a set of Amazon domains, and uses the regular expression to match against the hostname portion of the URL. Couldnt experiment with the code any more due to short time. It's good to see Ben always giving multiple solution :) I didn't know about the JAVA method as well. You might think a regular expression is the way to go, but it has failings because while a URL looks like a text string it's actually a data structure. Another package popped up in a broader search: It's curious why domain-match is so thinly used, and why aren't there more packages of this sort? Nice. A domain name like I see SpaceShipTrooper LIKED your question. What version of PHP is your host utilizing? [ ]?\d[ ]?\d[ ]?\d[ ]?\d[ ]?\d[ ]?\d[ ]? In this case, the domain name is the second item matched and can be extracted from the matches using urlParts[ 2 ]. Connect and share knowledge within a single location that is structured and easy to search. Note, the page extensions I experimented with.
How did you miss those? I already glanced over this quickly about an hr ago: http://php.net/manual/en/function.parse-url.php. Could anyone please help me in this regard?
For a similar thing, I've gone down the following route:
Email addresses as probably.
Hence, you see a sudden shift in direction. The domain name a.b.c.example.com looks like a string, but is a nested data structure. Yeah, I totally forgot about using lists :). you are doing something wrong. Thanks for the suggestion, though. But, did I prevent it from matching a domain of iloveamazon.com? Your regex takes care of most of the URL types that we are going to encounter. Therefore, still on the hunt for the perfect regex. Of-course a check is required to make sure list has at-least 2 item. https://www.npmjs.com/package/domain-match. 465), Design patterns for asynchronous API communication. Can climbing up a tree prevent a creature from being targeted with Magic Missile? He is especially interested in clean energy technologies like solar power, wind power, and electric cars.
Great, good luck re-inventing the wheel and maintaining your broken regexps over the coming years. Actually, I was about to go out and found this link: https://stackoverflow.com/questions/3442333/php-regex-get-domain-from-url. Have to open a ticket with the webhost about this. rev2022.7.21.42639. Since reaching down into the Java layer is probably overkill for such a use case, I will instead explore two different methods to use the POSIX regex engine to get what we need. Yes, I've made sure to use the case-less modifier (i) and to escape the . In the previous examples, we had to do all of the heavy lifting ourselves in terms of figuring out how to parse the URL using regular expressions. Missed you old buddy! http://www.example.com Good.
And that could fail on some urls. what if I want only the domain name without the http(s) or www stuff? Mount 29'' wheels on Cube Reaction TM 2018. Versions: 7.3.5, 7.2.18, 7.2.4, 7.1.29, 7.1.0, 7.0.14, 7.0.5, 7.0.4, 7.0.3, 7.0.2, 7.0.1, 5.6.29, 5.6.20, 5.6.19, 5.6.18, 5.6.17, 5.6.2, 5.5.34, 5.5.33, 5.5.32, 5.5.31, 5.5.18, 5.5.5, Yeah. And, a GREAT shift! No, that is definitely not it Note: regex is faster than language built-in modules. We can use this function to match parts of the target URL and then pluck the domain name out of the returned matches.
Fixed that and it is working. Can you see, the last few lines look like this: Can you spot what I am doing wrong here ? techsparx.com sure looks like a string, and we store it as a string in software. I wish I could do it client side that would save a lot of resources but at any rate I have figured it out. =regexreplace(B20;"ua(\/)";"ua\/ua\/"), Password, 8 chars, at least one special char, As more and more nigerians get new phone numbers daily, the main telcom companies in Nigerian increase the varieties of numbers to accomodate this greater demand.
You're on a slippery slope into regular expression hell, and perhaps it's necessary to take a step back and consider the situation. Wouldn't a match expression like *.amazon.com make more sense? The JSON file and images are fetched from buysellads.com or buysellads.net. Another, Affiliate Links, looks to see if the outbound link matches a domain for which there is an affiliate relationship, it will add rel=nofollow, and additionally add the affiliate tag if it is missing.
For example, pages that have sample code on it would have href tags that are not true HREF tags. There are many well documented libraries and approaches to handling this. I am the co-founder and a principal engineer at InVision App, Inc the world's leading online whiteboard and productivity platform powering the future of work. But more importantly, it does domain name matching the way it's supposed to be done. https://example.com I know I am doing something wrong and so go easy on the crticisms! You are not going to go very far if you keep just copying and pasting random code you find on the internet into your project. Eg: And pasted this code, which I grabbed from that link: And, I saw a blank page. By convention the domain www.example.com is often equal to example.com. Have you checked their control panel for where their Access/Error logs may be stored?
DDD obrigatrio (com ou sem parnteses) Somente nmeros nacionais Does "/p" and "/t" have any meaning for the regular expression evaluator? In short, whenever I tested a snippet of code or my updated codes, I tested on both offline and online servers. If someone wants the code you can just email me. part. To expand on @Gandalfs question, what is the value of $url that you are passing into parse_url? Try: If you wish to know why, or how single or double quotes behave differently in PHP, I strongly recommend you borrow or buy a book and read it. Regular Expression for alphanumeric and underscores, Regular expression to match a line that doesn't contain a word. Can a timeseries with a clear trend be considered stationary? I always tend to shy away from reg ex's due to never quite "getting" them.
What is a non-capturing group in regular expressions? But again, incase you are wondering How APIs can take the pain out of legacy system headaches (Ep. What you are doing isnt experimenting, it is trying to learn through brute force, which is a horrible way to learn, but to each their own..