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General Tech Bugs & Fixes 2 years ago
Posted on 16 Aug 2022, this text provides information on Bugs & Fixes related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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I'm getting this error in my apache error log while trying to get cURL to work on PHP:
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20121212/curl.so' - /usr/lib/php5/20121212/curl.so: symbol curl_easy_pause, version CURL_OPENSSL_3 not defined in file libcurl.so.4 with link time reference in Unknown on line 0
The file it references is there in that location and I'm trying to figure out if I've missed any dependancies while installing curl for PHP. There are no errors when I use curl -V on the command line.
curl -V
I've tried the following commands:
sudo apt-get install php5-curl sudo apt-get update sudo apt-get install openssl
I've also tried removing php completely and installing it from scratch using the following command:
sudo apt-get install php5-common libapache2-mod-php5 php5-cli
Then after:
sudo apt-get install php5-curl
What am I missing here?
My software versions:
PHP 5.5.9-1ubuntu4.2 (cli) (built: Jun 25 2014 17:17:37) curl 7.16.0 (x86_64-unknown-linux-gnu) libcurl/7.16.0 Ubuntu 14.04
Thanks in advance
In your system are installed two different version of libcurl:
libcurl3.so
libcurl4.so
libcurl.so.4.3.0
lrwxrwxrwx 1 root root 12 Apr 1 13:43 /usr/lib/x86_64-linux-gnu/libcurl.so.3 -> libcurl.so.4 lrwxrwxrwx 1 root root 16 Apr 1 13:43 /usr/lib/x86_64-linux-gnu/libcurl.so.4 -> libcurl.so.4.3.0 -rw-r--r-- 1 root root 422696 Apr 1 13:43 /usr/lib/x86_64-linux-gnu/libcurl.so.4.3.0
lrwxrwxrwx 1 root root 16 Jun 18 09:26 /usr/local/lib/libcurl.so.4 -> libcurl.so.4.0.0 -rwxr-xr-x 1 root root 1146079 Jun 18 09:26 /usr/local/lib/libcurl.so.4.0.0
This local library /usr/local/lib/libcurl.so.4 is loaded before /usr/lib/x86_64-linux-gnu/libcurl.so.4. We can see ld library order using command strings /etc/ld.so.cache.
/usr/local/lib/libcurl.so.4
/usr/lib/x86_64-linux-gnu/libcurl.so.4
strings /etc/ld.so.cache
As I can see in find / -name "*libcurl*" -exec ls -l {} \; -print output, you installed a source package of libcurl-7.16.0 in /usr/local/src/curl-7.16.0/ and I guess you compiled and generated /usr/local/lib/libcurl.so.4.0.0.
find / -name "*libcurl*" -exec ls -l {} \; -print
/usr/local/src/curl-7.16.0/
/usr/local/lib/libcurl.so.4.0.0
The missing method curl_easy_pause is present in libcurl since 7.18.0 and that's why I got the error, your system is using libcurl-7.16.0.
curl_easy_pause
libcurl-7.16.0
In order to fix this issue, remove wrong libcurl and update ld.so cache:
sudo rm /usr/local/lib/libcurl* sudo ldconfig -v
I suggest to remove /usr/local/src/curl-7.16.0 directory to prevent any other kind of problem.
/usr/local/src/curl-7.16.0
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