# \[PHP\]Delete Duplicates in .txt

**URL:** <https://forum.kirupa.com/t/php-delete-duplicates-in-txt/217300>\
**Category:** programming\
**Created:** [February 25, 2007, 5:36pm UTC](https://forum.kirupa.com/t/php-delete-duplicates-in-txt/217300 "2007-02-25T17:36:47Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![evildrummer](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/evildrummer/32/2308_2.png) [@evildrummer](https://forum.kirupa.com/u/evildrummer)\
**Post date:** [February 25, 2007, 5:36pm UTC](https://forum.kirupa.com/t/php-delete-duplicates-in-txt/217300/1 "2007-02-25T17:36:47Z")

</div>

Is there a quick and relatively easy way to go through a .txt file and delete lines that are duplicate? The structure is pretty much:

```auto

http://blog.digitalcarnival.com/
http://blog.digitalcarnival.com/
http://blog.digitalcarnival.com/about/
http://blog.digitalcarnival.com/about-the-library/
http://blog.digitalcarnival.com/current-functions/
http://blog.digitalcarnival.com/2007/02/25/new-writer/
http://blog.digitalcarnival.com/category/random/
http://blog.digitalcarnival.com/2007/02/25/new-writer/

```

Of course as you can see I threw in two duplicate as an example.