Posts tagged with ‘mysql_old_password’

MySQL 5.5 PDO::__construct(): The server requested authentication method unknown to the client [mysql_old_password]

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mysql-poweredJust upgrade one of my MySQL from 5.0 to 5.5 using WHM MySQL Upgrade tools. The upgrade went smooth. Right after i think everything is ok, some of my website show error while performing db query “Warning: PDO::__construct(): The server requested authentication method unknown to the client [mysql_old_password]”. That website is being developed using an old symfony 1.4 framework. I can see many people are facing the same problem and there are various solution. And i found one that works for me and i’m going to show it here.

To solve: MySQL 5.5 – PDO::__construct(): The server requested authentication method unknown to the client [mysql_old_password], follow the steps below:-

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