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After an update of my Manjaro system, my PHP server stopped working, with the error "php: error while loading shared libraries: libreadline.so.7: cannot open shared object file: No such file or directory".

It was probably caused by te fact that Readline was updated to version 8 and the old version deleted.

So is it possible to tell PHP 7.1 (php71-noconflict, 7.1.26) to use readline 8, or to somehow get both versions working?

  • I have successfully downgraded the library and started php server, but then bash started complaining. So I will need a way to either get php 7.1 working with readline8 or get both versions working along. – MrMid Jan 24 at 17:44
  • Okay, seems like I broke my system completely now. As Bash is missing the readline8 library, I cannot do almost anything. I cannot install readline8 neither using package manager, nor using their own install script. What can I do now? Is there any solution? – MrMid Jan 24 at 18:40
  • Why didn't you just make a symlink of libreadline.so.7 pointing to libreadline.so.8 or compile readline-7.0 from source and then put the library path in a file in /etc/ld.so.conf.d/ and then run ldconfig? – Nasir Riley Jan 24 at 19:43
  • Okay, I did so, thank you. As I am not a very experienced user, it took me a lot of time, and at first I believed that PHP would not work with the new major version, so at first I tried to compile and use the old version, but that gave me errors all the time. The symlinked new version works. – MrMid Jan 25 at 22:24
  • I'll post the symlink solution as an answer. – Nasir Riley Jan 25 at 22:25
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You can create a symlink in /usr/lib:

ln -s /usr/lib/libreadline.so.8 /usr/lib/libreadline.so.7 

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