So basically I have been always developing with PHP under Windows with the WAMP package and I never had any trouble.
Now, I am trying to transition to Linux (Mint). Everything is well, except for the PDO extension which cannot find the MySQL driver. In fact, it states not having any available drivers at all.
First, I installed Apache:
sudo apt-get install apache2
Then, PHP:
sudo apt-get install php5
MySQL for PHP (I am not exactly sure this was required):
sudo apt-get install php5-mysql
Finally, the command line interface for PHP:
sudo apt-get install php5-cli
Note that I had installed MySQL a while ago for other purposes.
Everything else is working well. The server starts, runs, executes scripts. I am also able to create an instance of PDO, but then it throws a PDOException stating that it cannot find the MySQL driver. The code is typical of a PDO initialization :
$pdo = new PDO("mysql:host=127.0.0.1;db=testdb", "root", "");
I looked at the phpinfo() and for the value PDO I see no drivers. However, I see the line MySQL driver for PDO followed by the names of its authors, but I cannot tell if it guarantees the presence of the driver. Notice that I also see the authors of all the other drivers (SQLite, PostgreSQL, Oracle, etc.).
The command php -m (which, according to the php --help, lists all modules compiled with PHP) also clearly indicates that both PDO and pdo_mysql are installed.
My search returned a lot of results about the extensions pdo.so and pdo-mysql.so. I have been trying to reference them into the php.ini file without success. It would probably have a higher chance of success if I actually had these files, but so far I have been unable to find them.
So, here we are, about five hours later, with me being completely stuck.
Thank you.
Related
I'm trying to make my own website with MySQL database. Making it using MAMP was a great succes for me, so I bought Raspberry Pi (Raspbian on board) to make a server from it (and learn ofc). Apache2 is working, php5 also, MariaDB is installed and seems to be working (I can use statements in terminal), but phpinfo() says, that there is no PDO driver. When I install SQLite, it becomes driver with no issue at all (but I want to use MySQL).
So my question is: How to force php (apache?) to make MySQL his PDO driver?
Googling and looking for solutions for days is killing me.
EDIT:sudo apt-get install php5-mysql has Depends: libmysqlclient18 but it is not installable issue. Also I have multiple php.ini files in /etc/php5 (more folders here with php.ini files). Which is the "chosen one"?
I already have PHP 5.4 installed in a CentOS 7 VPS. I am trying now to access a legacy database in .mdb format with a PHP script.
However, my phpinfo() page says that only mysql and sqlite PDO drivers are enabled. No driver named ODBC is enabled.
Which is why I have tried to follow this tutorial to get that to work. But it doesn't work. bash: ./configure: No such file or directory.
I don't know from which folder I have to run the commands listed there. Is there a command which will allow me to install the PDO ODBC drivers from the system e.g. yum -y install php_odbc which would be easier for me to work with? If not, what am I doing wrong?
Looks like php_odbc is one of CentOS 7 packages.
See http://mirror.centos.org/centos/7/os/x86_64/Packages/ it is a very long list.
So yum -y install php_odbc should work. Just don't forget to restart your web-server if required.
You would run ./configure ... if you were compiling PHP from source. It will not work in your case.
Today some of my packages in Ubuntu was upgraded automatically, and I didn't think of what was actually going on.
Ever since the update, my local dev-environment doesn't work anymore. First of by not working was mod_rewrite which I had to enable again using a2enmod. But now I've run into an issue that I can't seem to resolve. My application can't seem to find the PDO MySQL driver. When running the application, I get the error failed to open the DB connection: could not find driver.
This is strange, since if I check the phpinfo() the PDO drivers do support MySQL, and the socket path is a valid path.
pdo_mysql client API version is 5.5.35 according to php info.
PHP5: 5.5.3
MySQL: 5.5.35
Connectionstring
mysql:host=127.0.0.1;dbname=MyDB;port=3306
What could be causing this?
The PHP MySQL driver (mysql.so/mysqli.so) and the PHP PDO MySQL driver (pdo_mysql.so) are two separate modules. You need both of them for PDO functionality with MySQL.
It is quite possible that one of them is missing or of an incompatible version - I do not have an Ubuntu system at hand, but on my RPM-based Linux distribution there is a separate package for each module (php-mysql/php-mysqli and php-pdo_mysql). I also expect PDO to be using the newer mysqli.so driver, rather than the obsolete mysql.so one, so you should verify that one is installed as well.
Try this:
sudo apt-get install -y php5-mysql php5 mysql-client
This should automatically restart your apache if any of the dependencies aren't installed.
Try using vagrant.
Dependencies can be isolated, upgraded and downgraded when you like.
Vagrant
I encounter this problem when configure PHP and mysql on my linux box (Fedora 14).
The problem is when I invoke mysqli_connect(), an error issues:
Call to undefined function mysqli_connect().
while call to mysql_connect() works fine.
I install PHP and mysql manually and also turn on the flag --with-mysql when installing PHP. Can't figure out where things go wrong.
Mysql-i is not Mysql, these are 2 distinct PHP modules and MySQL APIs. Have a look at PHP's documentation regarding the mysqli installation.
If yum is an option for you, you can simply run the following to install the mysqli extenstion:
yum install php-mysqli
EDIT: Marc B informs that mysqli is included in the core php rpm on Fedora 14. Simply install php via yum (after removing your manual install) with yum install php
http://php.net/manual/en/mysqli.installation.php says:
To use MySQL Native Driver with mysqli you need to configure the PHP source code using the --with-mysqli=mysqlnd option, prior to building PHP.
In other words, --with-mysql is for a different module (which, as you note, works fine).
I have a mac with a custom PHP 5 install that built from about a year ago. I remember it took all Sunday and I had to compile about 20 times to get it right. The MySQL I have is from entropy and was precompiled.
Now I need to get PDO with the MySQL driver working and the driver is not installed. I tried the "pecl install pdo_mysql" and it dies at a point where it can't find some mysql files. Any ideas how I can fix this quickly?
checking for mysql_config... not found
configure: error: Cannot find MySQL header files under
ERROR: `/private/tmp/pear/temp/PDO_MYSQL/configure' failed
I'll post whatever paths or messages you need to help me troubleshoot this. Will I have to compile PHP all over again, or can I just compile the pdo_mysql extension?
I hope I don't seem lazy, I just have a lot of code to write and not a lot of time to fight with my PHP configuration.
You're going to need to compile it by hand, instead of via PECL. You'll need to know where your MySQL install is. I don’t know about the Entropy packages, but the builds provided by MySQL (which I recommend) install into /usr/local/mysql.
$ pecl download pdo_mysql
$ tar xzf PDO_MYSQL-1.0.2.tgz
$ cd PDO_MYSQL-1.0.2
$ phpize
$ ./configure --with-pdo-mysql=/usr/local/mysql
$ make && sudo make install
And that should get you to the point where you can configure it.
FYI; the MySQL PDO driver is included in the php 5.2.9 and 5.3 builds from Marc Liyanage's entropy.ch