Re: [RFC][UNDER DISCUSSION] Oniguruma maintenance end and future of mbregex(End of mbregex)

From: Date: Mon, 23 Mar 2026 10:14:43 +0000
Subject: Re: [RFC][UNDER DISCUSSION] Oniguruma maintenance end and future of mbregex(End of mbregex)
References: 1 2  Groups: php.internals 
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As far as I understand, mbstring extension internally uses library named oniguruma, which provides regex support for mb_ereg* and few other functions. Oniguruma reached EOL almost year ago. This RFC proposes deprecation and subsequent removal of all regex related functions from mbstring extension and removing dependency on oniguruma. Instead, Yuya offers pie extension named mb_onig/mb_onig, which is a new home for those functions. For that goal he forked oniguruma for providing updates on security and unicode version.

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