# Field value in regexp action
**URL:** https://community.mp3tag.de/t/field-value-in-regexp-action/3992
**Category:** Support
**Created:** [November 2, 2006, 5:14pm UTC](https://community.mp3tag.de/t/field-value-in-regexp-action/3992 "2006-11-02T17:14:10Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@chrisjj](https://community.mp3tag.de/u/chrisjj)
#### Post date: [November 2, 2006, 5:14pm UTC](https://community.mp3tag.de/t/field-value-in-regexp-action/3992/1 "2006-11-02T17:14:10Z")
Can anyone tell me how I can get a field value into the "Replace matches with:" value of a "Repalce with regular expression" Action?
E.g. to prepend ALBUM ARTIST to ARTIST.
Thanks.
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [November 2, 2006, 5:52pm UTC](https://community.mp3tag.de/t/field-value-in-regexp-action/3992/2 "2006-11-02T17:52:42Z")
To prepend ALBUM ARTIST to ARTIST you can use an action Format value. Placeholders are not supported at Replace matches with for regular expressions.
Best regards,
Florian
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### Author:  [@chrisjj](https://community.mp3tag.de/u/chrisjj)
#### Post date: [November 2, 2006, 6:19pm UTC](https://community.mp3tag.de/t/field-value-in-regexp-action/3992/3 "2006-11-02T18:19:23Z")
> To prepend ALBUM ARTIST to ARTIST you can use an action Format value.
Thanks.
> Placeholders are not supported at Replace matches with for regular expressions.
OK. How about adding a function $ph(placeholder)?
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:19pm UTC](https://community.mp3tag.de/t/field-value-in-regexp-action/3992/4 "2026-02-09T12:19:58Z")