PHP 升级到 7.3 后,出现 BUG:PHP Fatal error: Uncaught ErrorException: preg_match_all (): JIT compilation failed: no more memory in phar
This is a known PHP 7.3 bug.
As a temporary fix, edit your php.ini file (in my case: vi /usr/local/etc/php/7.3/php.ini), disable PHP PCRE JIT compilation by changing:
;pcre.jit=1
pcre.jit=0
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