Undefined function mysql_connect()

Question

I have ran aptitude install php5-mysql (and restarted MySQL/Apache 2), but I am still getting this error:

Fatal error: Call to undefined

Answer 1

If someone came here with the problem of docker php official images, type below command inside the docker container.

$ docker-php-ext-install mysql mysqli pdo pdo_mysql

For more information, please refer to the link above How to install more PHP extensions section(But it's a bit difficult for me...).

Or this doc may help you.

https://docs.docker.com/samples/library/php/

Answer 2

I was also stuck with the same problem of undefined MySQL_connect().I tried to make changes in PHP.ini file but it was giving me the same error. Then I came to this solution where I changed my code from depreciated php functions to new functions.

$con=mysqli_connect($host,$user,$password);

mysqli_select_db($con,dbname); 
//To select the database

session_start(); //To start the session

$query=mysqli_query($con,your query); 
//made query after establishing connection with database.

I hope this will help you . This solution is correctly working for me .

EDIT:

If you upgrade form old php you need to apt-get install php7.0-mysql