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For 2023 (and 2024 ...) - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

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I cannot access MySQL from PHP

Posted by enquirer (enquirer), 23 July 2002
Our system administrator has set up a [MySQL] database for us.  I can connect to it through the ssh terminal window or telnet, using the following command, as suggested by him:
       mysql -h localhost --socket=/tmp/mysql.sock2 -u myname -p
followed by ENTER, and then my password. Then I can "use" my database, run SQL commands, create a table, insert a record etc.

However I have been unable to connect to it in PHP.

I have tried this code
       $dbh = mysql_connect("localhost", "myname", "xxxxxxxx") or die ("Cannot connect to db");
(where the x's are my password) and this which was suggested by the administrator:
       $link = @mysql_connect("localhost", "myname", "xxxxxxxx") or exit();
With or without the @, it does not work.

Have you got any suggestions?

Posted by admin (Graham Ellis), 23 July 2002
Your PHP code doesn't make any reference to the socket, so it's assuming the default MySQL socket.  All that adding the "@" character does is tell PHP to ignore any errors in the function.

dbh = mysql_connect("localhost:/tmp/mysql.sock2", "myname", "xxxxxxxx")

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