That caused my WordPress plugin Crayon Syntax Highlighter to fail. Some googling suggests php-7.3 switched to pcre2, which is more restrictive in terms of escaping special characters.
php debugging
There are a couple ways to debug php applications. We can enable core dump and/or install Xdebug. Enable php core dump on php-fpm First instruct the kernel to write core dumps to /tmp. On some system, dumps are fed to abrtd.
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echo '/tmp/core-%e.%p' > /proc/sys/kernel/core_pattern |
In php-fpm.conf, add the following
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rlimit_core = unlimited |
Restart php-fpm and use gdb to debug the dump files. To get the most out of the dump files, install the debuginfo…
Create CSR with SANs on php
Ever tried generating CSR with SANs? It is tedious work. It involves populating an openssl config file with the additional domain names. Put it on a webapp, it does not eliminate the work, but only require minimal coding once.