Wordpress generate unique id

wordpress generate unique id

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I am a student at university and our task is to create a search engine. I am having difficulty generating a unique id to assign to each url when added into the frontier.

I have attempted using the SHA hashing algorithm as well as Guid. Here is the code that i used to implement the guid:. Why don't use GUID? It creates random ids of size 11 characters.

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We can use DateTime. Ticks and Guid. ToString to combine together and make a unique id. As the DateTime. Ticks is added, we can find out the Date and Time in seconds at which the unique id is created.

We can even take the part of ticks in unique id and check for the date and time later for future reference. You can use a unique ID number generator which is based on Twitter's Snowflake id generator. C implementation can be found here. Note that one of very nice features of that approach is possibility to have multiple generators on independent nodes probably something useful for a search engine generating real time, globally unique identifiers.

Learn more. Generate a unique id Ask Question. Asked 7 years, 9 months ago. Active 4 months ago. Viewed k times.The easiest and fastest way to create custom and high quality code for your WordPress project using the latest WordPress coding standards and API's. You don't need to be a developer to build WordPress plugins.

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How To Generate Unique ID in PHP

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It only takes a minute to sign up. I have to create a membership site, but I need to give every user that registers a automatic ID number. I did a forum search and found this, its pretty much what I am asking - What is the fastest way to generate a unique id number when registering a user.

Note: If the "pay-" is fixed, it does not need to be part of the code that stores the value, only part of the output. Sign up to join this community.

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The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 7 years, 6 months ago. Active 1 year, 4 months ago. Viewed 10k times. Andy Andy 2 2 gold badges 2 2 silver badges 8 8 bronze badges. Hi Andy. Not sure why you have to create an additional unique id for each user. Each registered user in WP already has a unique user id?

I presume the users should not be able to edit their own user id, since that could create conflicts? Hi Lars, The customer already has a numbering system for members, he has asked if it could continue in the same format hopefully, just number change - I personally don't see the point as its a strange request, but I'd like to know if it can be done, if it will cause any problems etc etc Hi Andy.

I added an answer with the code you need. If the customer has no particular reason for the request, I would not implement the code. Active Oldest Votes. Lars Koudal Lars Koudal 2 2 silver badges 8 8 bronze badges.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I found many functions in PHP that can generate such numbers but I'm afraid about how to ensure the id is unique!

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You may like the way that we do it. I wanted a reversible unique code that looked "random" -a fairly common problem. We now have a number that varies wildly between calls and is guaranteed to be less than 10, Not a bad start. Now you have a short random-looking key that you can use to look up a LONG database identifier. My point is that you do not need to generate these unique id's at the time of creating your rows, because they are essentially independent of the data being inserted.

What I do is pre-generate unique id's for future use, that way I can take my own sweet time and absolutely guarantee they are unique, and there's no processing to be done at the time of the insert. This id is generated on the fly when the user enters the order, incrementally 1,2,3 etc forever. The user does not need to see this internal id.

UniqueID for Contact Form 7

If I ever get orders in one day I'll have a problem - but that would be a good problem to have! This approach guarantees uniqueness and takes any processing load away from the insert transaction and into the batch routine, where it does not affect the user.

If you use MySQL with version higher than 5. Use UUID function. I don't know the source of your procedures in PHP that generates unique values. If it is library function they should guarantee that your value is really unique. Check in documentation. You should, hovewer, use this function all the time. If you, for example, use PHP function to generate unique value, and then you decide to use MySQL function, you can generate value that already exist. This will give you a 8 digit unique character everytime.

For uniqueness what I do is I take the Unix timestamp and append a random string to it and use that. You can use 2 chars, but that will give you enough combination for salt. So this should give random and short string 11 char when run with crypt.

This is good enough plus its reversable so you'd not have to store that token in your table but to generate it instead. Another advantage is once you decode your PK from that token you do not have to do heavy full text searches over your table but simple and quick PK search. Theres one small problem though. MySql supports different block encryption modes which if changed will completely change your token space making old tokens useless However that a bit waste The solution for this is to attach an encryption mode used marker to the token:.

One last but not least advantage of this solution is you can easily replicate it in php, python, js or any other language you might use. In short, it generates a unique id based on time, server id and a sequence. It generates a bit value so it is pretty small and it fits in an INTThe key to generating large number of random and unique alpha numeric code is to generate all of it in one go.

Store all the codes in a file or a table and server the requested amount of codes whenever required from there. The SQL script below will generate 10 digit or rather 10 character alpha numeric codes. You can change the number of cross joins to change the number of digits in the code. For example to generate 8 digit code i will have only eight cross joins of the Chars table and eight concatenation of the Digit column in the select line.

I have defined a simple condition for each character of the code. You can use your own conditions. This solves two purposes, one is that it gives a meaning to the generated codes; also it limits the number of codes that will be generated.

The script below generates codes in excess of 20 million. If I need more unique codes; ill just change the fixed character and regenerate. This is a great code. I would appropriate if you could show me how it can be used only to generate alpha keys, rather than alpha numeric. I have a requirement of such a thing.

It needs to be unique throughout the table please. The easiest way is to remove the numeric characters from the Chars table the second script and only keep alphabets in it. Please feel free to ask if you need any help with this. I realy appriciate the script above. Can you please explain what is the formula by which it says that 20 milion of codes can be generated? Is it a probability equation? Ensure that you update this again very soon.

But, what about the conclusion? Are you sure about the source? You posted a number of nice points there. I did a search on the issue and discovered nearly all people will have the same opinion with your blog.

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wordpress generate unique id

Skip to content. Home About Archives Contact. Below is the script for generating the characters table which you will be needing. Like this: Like Loading About Amit Singh Software engineer; crazy about music, astronomy and radio controlled aircrafts.Start a blog, business site, portfolio, online store, or anything else you can imagine.

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wordpress generate unique id

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Gravity Forms MC Unique ID Generator Field (Lite)

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Generating Unique IDs for Your Form Entries!

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Tell us about your needs. Thank you for contacting us. Phone Number. Go Back to WordPress.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. It only takes a minute to sign up. I know there are userIDusername in the database, but I want a formatted and unique number for physical world use. This will do what you want, and both functions should be placed within your fucntions. Note however that this code does not allow the user to edit that number.

Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 5 years, 1 month ago. Active 2 years, 5 months ago. Viewed 10k times.

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For example: "xxxx" year,xxxx:generate randomly when registering a user. Is it possible? If possible, what is the simplest way and fastest way to do so? KGR 14 14 bronze badges.

wordpress generate unique id

Can this number be based on userID? For example xxxxuserID? Active Oldest Votes. David Gard David Gard 2, 5 5 gold badges 17 17 silver badges 34 34 bronze badges. Thank you for your help!

I can see the random number in database. Here is the thing, can I take the first four digit into current year and the rest into random number?

Also, how can I output the number in user profile page? The Overflow Blog. The Overflow How many jobs can be done at home? Featured on Meta.

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