Updated php packages fix security vulnerabilities:
A use-after-free in onignewdeluxe() in regext.c in the bundled Oniguruma allows attackers to potentially cause information disclosure, denial of service, or possibly code execution by providing a crafted regular expression (CVE-2019-13224).
A NULL Pointer Dereference in match_at() in regexec.c in the bundled Oniguruma allows attackers to potentially cause denial of service by providing a crafted regular expression (CVE-2019-13225).
For other fixes in this update, see the referenced changelog.