PDOException could not find driver

Question

I have just installed Debian Lenny with Apache  MySQL  and PHP and I am receiving a PDOException could not find driver   This is the specific line of code it is referring to    dbh   new PDO  mysql host     DB HOST     dbname     DB NAME  DB USER  DB PASS   DB HOST  DB NAME  DB USER  and DB PASS are constants that I have defined  It works fine on the production server  and on my previous Ubuntu Server setup    Is this something to do with my PHP installation   Searching the internet has not helped  all I get is experts-exchange and examples  but no solutions

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sudo apt-get install php-mysql    worked well on ubuntu and php 7

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For PHP 5 5 on CentOS I fixed this by installing the php55-mysqlnd package   sudo yum -y install php55w-mysqlnd   For Webtatic sudo yum -y install php55u-mysqlnd   For Remi   For help installing  write a comment as it depends on the way PHP is installed on your system  Available repo s are webtatic and remi

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For Linux Mint  I had the same issue whilst using PhpBrew   5 5 9   7 0 14   and trying to create a PDO connection   After I had tried most of the solutions on this post I did the following    Powered off PhpBrew  Executed sudo apt-get install php7 0  Linux Mint 17 2   PHP7 0 16  -  installed fresh php version

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In my case my DSN string was incorrect  specifically it did not contain mysql      I would have expected a different error message  perhaps something like  DSN string does not specify driver protocol    Adding mysql    to the beginning of the DSN string resolved the issue

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I solved this problem by enabling php pdo mysql ddl in   IIS Information Service -   PHP Exstention

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The dsn in your code reveals you are trying to connect with the mysql driver  Your error message indicates that this driver is unavailable   Check that you have the mysql extension installed on your server   In Ubuntu Debian you check for the package with   dpkg --get-selections   grep php   grep mysql   Install the php5-mysql package if you do not have it    In Ubuntu Debian you can use    PHP5  sudo apt-get install php5-mysql PHP7  sudo apt-get install php7 0-mysql   Lastly  to get it working  you will need to restart your web-server    Apache  sudo  etc init d apache2 restart Nginx  sudo  etc init d nginx restart

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For newer versions of Ubuntu that have PHP 7 0 you can get the php-mysql package   sudo apt-get install php-mysql   Then restart your server   sudo service apache2 restart

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The solution for me was in the instalation of php  Dont have correctly configured the environment variable and the php ini file  Doing this two correction an uncomented de line of extension   pdo mysql so works

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Had the same issue  because I forgot to go into my virtual machine  If I go to my local directory like this   cd  www homestead my project php artisan migrate   that error will appear  But it works on my virtual machine  cd   homestead vagrant ssh    cd  www homestead my project php artisan migrate

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If you are using sqlite for testing you will need php sqlite pdo drive  You can install them as below   For Ubuntu 14 04  sudo apt-get install php5-sqlite sudo service apache2 restart   In ubuntu 16 04 there is no php5-sqlite  sudo apt-get install php7 0-sqlite sudo service apache2 restart

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I had the same problem during running tests with separate php ini  I had to add these lines to my own php ini file    PHP  extension   mysqlnd so extension   pdo so extension   pdo mysql so   Notice  Exactly in this order

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Check if extension dir in php configuration file set correctly  Try to comment uncomment some extensions and see if it s reflected on phpinfo    If it doesn t then either php config file cannot be loaded  wrong location  extension dir is commented or set to the wrong location

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for Windows 8 1 10 in    php ini file you should uncomment  line  extension pdo mysql

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The problem is a missing php to mysql library  In CentOs i fixed it by running    yum install php-mysql and then restarting apache with    bin systemctl restart  httpd service Note that the naming is slightly different from debian ubuntu based distros  php- php5 and httpd- apache2

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I Fixed this issue on my Debian 6  Normally I just had  installed php5-common package  After installation  you have to restart your web server  apache or nginx depending on which one you installed   Then I just do an lsof on the apache process id  lsof -p process id  as followed    sudo lsof -p 1399    replace 1399 by your apache process id apache2 1399 root  mem    REG  254 2    80352 227236  usr lib php5 20090626 xmlrpc so apache2 1399 root  mem    REG  254 2   166496 227235  usr lib php5 20090626 suhosin so apache2 1399 root  mem    REG  254 2    31120 227233  usr lib php5 20090626 pdo mysql so apache2 1399 root  mem    REG  254 2   100776 227216  usr lib php5 20090626 pdo so apache2 1399 root  mem    REG  254 2   135864 227232  usr lib php5 20090626 mysqli so   As you can see above  the modules are installed on a file path not known or guided by common library path   usr lib php5 20090626   For your installation  it may be different  but only the path of pdo mysql so  pdo so  mysqli so  So  this is why Drupal or any other php engine couldn t find the library and shows that error  PDOException  could not find driver  I just don t know why it is installed on such a weird path  for me it s just a bug in the library package installation script in debian 6  I solved the issue by creating a symbolic for all the files under  usr lib php5 20090626  to   usr lib php5  with this command    ln -s  usr lib php5 20090626    usr lib php5

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I faced the same issue after I removed the php5 package  that includes all the drivers as well  in order to install php7 package  I actually installed php7 package without a mysql module   I managed to solve it by typing in the terminal   1    apt-cache search php7 which lists all the modules  looking through the modules I found   php7 0-mysql - MySQL module for PHP  2    sudo apt-get install php7 0-mysql  That s it  It worked for me in my linux system    use the appropriate php version  yours could be php5

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If you read all answer above and it still does not work     Make sure that your PHP PDO connection string is fine  Not like mine    dbh   new PDO   mysql host     DB HOST     dbname     DB NAME  DB USER  DB PASS   There is no information in error message what driver was not found   After reinstalling all possible PDO and MySQL libraries I found out that there was   at start of my connection string

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In my case  I was using PDO with php-cli  and it worked fine   Only when I tried to connect from apache  I got the  missing driver  issue  which I didn t quite understand   A simple apt-get install php-mysql solved it   Ubuntu 16 04   PHP7   credits go to the selected answer  amp  Ivan s comment   Hope it can help

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Remove the semicolon before  extension php pdo mysql dll in php ini and save  Don t forget restart xampp Apache and Mysql

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Everywhere I go I read that the path of extension dir should be changed from ext to an absolute path  It worked for me  However  when trying to build a server of my colleague s PC  I had to let the value to ext instead of putting an absolute path   If you did put an absolute path and it does the extension is still not found  considerer trying both with the absolute path and ext

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For those using Symfony2 3 and wondering why you re getting this error  If you re using  mapping types   you might encounter this error  The reason is that  mapping types  is placed at the wrong level  For instance    doctrine    dbal      mapping types          set  string   This  mapping types  must be placed at this level    doctrine  dbal       To counter the error caused by  mapping types      connections          default              server version   database server version              mapping types                  set  string   I hope this helps  I found the solution here   https   github com doctrine DoctrineBundle issues 327

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Did you check your php ini  check for the correct location with phpinfo    if MySQL and the driver is installed correctly

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Had the same issue and just figured  website is running under MAMP s php  but when you call in command  it runs mac s if no bash path modified   you will have issue when mac doesn t have those extensions   run php -i to find out loaded extensions  and install those one you missed  or run   Applications MAMP bin php php5 3 6 bin php artisan  your command   to use MAMP s

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I had the same exception when trying to use pdo sqlite  The problem was that the automatically created 20-pdo sqlite ini and 20-sqlite3 ini symlinks  in  etc php5 mods-enabled  were broken   Removeing the broken symlinks and adding them manually with    sudo ln -s  etc php5 mods-avaliable pdo sqlite ini  etc php5 mods-enabled 20-pdo sqlite ini sudo ln -s  etc php5 mods-avaliable sqlite3 ini  etc php5 mods-enabled 20-sqlite3 ini   fixed the problem      Note  this won t work for older php versions as they did not look for configs in  etc php5 mods-enabled

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In my case  Windows XP   Apache2 2   PHP 5 4 31  I changed PHPIniDir in the httpd conf to get around this problem   from     C  php5      to     C  php5

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PHP Fatal error   Uncaught PDOException  could not find driver   I struggled and struggled with  apt install php-mysql php7toInfinity and don t forget sqlite-what-ever s  and just could not get rid of this error message until I went back to basics and reset the file-permissions on the web-site in question   These 3 commands reset file and folder permissions on the web-site and got it to work again   cd  var www web-site-name com web     find  sub  directories and change permissions find   -type d -exec chmod 755          find files and change permissions find   -type f -exec chmod 664

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You need to have a module called pdo mysql  Looking for following in phpinfo     pdo mysql  PDO Driver for MySQL  client library version   gt  5 1 44

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I had the same issue  The solution depends on OS  In my case  i have debian  so to solve it    Updated my php version from  php5 to php7  Install php-mysql and php7 0-mysql  apt-get install php-mysql apt-get install php7 0-mysql  I edited my php ini locate at  etc php 7 0 apache2 php ini  uncomment the line   extension php pdo mysql dll  Then restart apache   service apache2 restart    This solves my problem

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Just one other thing to confirm as some people are copy pasting example code from the Internet to get started   Make sure you have MySQL entered here         dbh   new PDO   mysql          In some examples this shows    dbh   new PDO   dblib

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When adding these into your php ini ensure the php pdo dll reference is first before the db drivers dlls otherwise this will also cause this error message too  Add them like this    PHP PDO  extension php pdo dll  PHP PDO MYSQL  extension php pdo mysql dll

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Check correct path in extension dir in you phpinfo

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I extremely recommend mysqllnd instead of mysql because of you would have a lot of problems like number converting and bit type evaluates problem with mysql extension   on ubuntu install mysqllnd with following command   sudo apt-get install php5-mysqlnd

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I spent the last day trying to figure out why I was getting the following error  I am running Ubuntu 14 04    The Problem   I noticed that my PHP-CLI version was running php7 0 but php info    the web version  was displaying php 5 5 9  Even though php info   said pdo was enabled  using the command line  CLI  wasn t recognizing the pdo mysql command   It turns out that mysql was enabled for my old version but not the CLI version   All I did was install mysql for php7 0 and it was able to work   This is what worked   To check the version   php -v   To install mysql for php7 0  sudo apt-get install php7 0-mysql   1  make sure your CLI version is the same as your web version  2  If they are different  make sure your CLI version has the mysql plug-in since it doesn t come with it as a default

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On Ubuntu just execute   sudo apt-get install php5-mysql

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Update  newer versions should use php-sqlite3 package instead of php5-sqlite  So use this  if you are using a recent ubuntu version   sudo apt-get install sqlite php-sqlite3   Original answer to question is here   sudo apt-get install sqlite php5-sqlite sudo  etc init d apache2 restart   If your phpinfo   is not showing the pdo sqlite line  in my case  on my Ubuntu Server   you just need to run the lines above and then you ll be good to go

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Incorrect installation of PHP was being called  I was experiencing the same problem  And I hope this would help someone who is having a similar issue as me   Scenario    OS   Windows 10   Platform   XAMPP   PHP Version   7  Multiple Version seem to have been installed in the PC      I created phpinfo php file in the public folder and run the phpinfo   to look for the location of my php ini file   PHP ini Location   c  xampp php php ini   Problem Calling c  xampp htdocs gt  php -v returned PHP 7 2 3 but phpinfo php showed PHP 7 2 2     Solution Instead of calling    php artisan migrate install      which gave me this error  I used    c  xampp php php artisan migrate install   and it worked

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DB TYPE    mysql     Type of database lt br gt   DB HOST    localhost     Host name lt br gt   DB USER    root     Host Username lt br gt   DB PASS         Host Password lt br gt   DB NAME    database name     Database name lt br gt  lt br gt    dbh   new PDO   DB TYPE host  DB HOST  dbname  DB NAME     DB USER   DB PASS      PDO Connection   This worked for me

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On my Windows machine  I had to give the absolute path to the extension dir in my php ini   extension dir    c  php5 ext

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Check if the module is available with php -m   grep pdo mysql   If not  for PHP 7 2  you can install relevant package with sudo apt install php7 2-mysql   Use similar command on other PHP versions and package managers

[php] PDOException “could not find driver”

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