I have progressed a little in my trials.
mysqli.so still shows the previously described problems, and I thought that this was responsible of the fact that mysqli functions were apparently discarded in the test programs I wrote.
I discovered that this was due to errors I made in the php program. The errors in the script being corrected, mysqli_connect, mysqli_select_db, mysqli_query... now do operate... despite the errors concerning mysqli.so that I discovered when running the tests which are proposed by 'baeldung.com'
"
$ php -m | grep mysqli"If the MySQLi extension is enabled, we’ll see mysqli in the output. Otherwise, the output will be empty."
php -m grep mysqli
PHP Warning: PHP Startup: Unable to load dynamic library
'//usr/lib/php/20190902/mysqli.so' (tried:
//usr/lib/php/20190902/mysqli.so
(//usr/lib/php/20190902/mysqli.so: undefined symbol:
mysqlnd_global_stats),
/usr/lib/php/20190902///usr/lib/php/20190902/mysqli.so.so
(/usr/lib/php/20190902///usr/lib/php/20190902/mysqli.so.so: cannot
open shared object file: No such file or directory)) in Unknown on
line 0
PHP Warning: PHP Startup: Unable to load dynamic library 'mysqli'
(tried: /usr/lib/php/20190902/mysqli
(/usr/lib/php/20190902/mysqli: cannot open shared object file: No
such file or directory), /usr/lib/php/20190902/mysqli.so
(/usr/lib/php/20190902/mysqli.so: undefined symbol:
mysqlnd_global_stats)) in Unknown on line 0
mysqli
"
Hi to Everyone !
PHP Warning: PHP Startup: Unable to load dynamic library '//usr/lib/php/20190902/mysqli.so' However, the file is there... not human readable as expected and mysqli_connect doesn't operate.
Thanks in advance for your help Bernard