CODEWITHSUNDEEP
phpdatedatetimetimeunique-key
user1518659
user1518659

Reputation: 2246

how to generate unique id in php based on current data and time?

I need to generate a unique ID in php based on current date and time to keep a log of when i am running code. i.e. every time i run the code it should be able to generate a unique id based on current date and time.

Hope I am clear with my ques. How to do that?

Upvotes: 5

Views: 33076

Answers (3)

Ja͢ck
Ja͢ck

Reputation: 173642

With PHP 7 you can use this to generate a sufficiently random value based on the current timestamp:

$s = time() . bin2hex(random_bytes(10));

Do note that after 265 years (starting with 11 digits in 2286) the timestamp would get another digit, and sorting order will be off; if your code is expected to survive for that long, you may want to consider some padding.

Old answer

You can use a combination of uniqid() and time() like so:

$s = uniqid(time(), true);

Example output:

1346136883503c6b3330caf5.19553126

Upvotes: 4

amitchhajer
amitchhajer

Reputation: 12840

Using time() to create sortable unique id's

Concatenating strings will also further randomize your desired result and still keep it sortable. manual here

$uniqueId= time().'-'.mt_rand();

Upvotes: 8

Lucas Green
Lucas Green

Reputation: 3959

Is this what you're looking for? uniqid()

From the doc:

Gets a prefixed unique identifier based on the current time in microseconds.

Upvotes: 1

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