Problem has been solved. In case anyone else is experiencing the same
problem: this was caused by an upgrade of the PCRE lib for the Linux
distro on which the site is hosted. Downgrading fixed it.
Apparently this is not the lib that is compiled into php (the version of
which can be shown by using phpinfo()), but the package as installed by
the Linux distro (libpcre3?).
Albert
On 9/14/12 12:58 PM, Albert van der Veen wrote:
Hi all,
All of a sudden the backend of a 4.5.19 site is flooded with these
warnings and an error in the frontend is generated, preventing any output:
PHP Warning: preg_match() [<a
href='function.preg-match'>function.preg-match</a>]: Compilation failed:
internal error: previously-checked referenced subpattern
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