Warning: mysql_connect(): [2002] No such file or d

Question

I'm trying to connect to my MySQL DB with the Terminal on my Apple (With PHP).

Yesterday it worked fine, and now I suddenly get the error in the title.

The script works when I use my browser to run it (I have XAMPP installed), but Terminal refuses to connect to the DB.

Here is the file that I include to connect (the script works when I don't include this, but then it doesn't connect to the DB):

<?php
    mysql_connect("localhost", "root", "") or die(mysql_error());
    mysql_select_db("FNB1C_data") or die(mysql_error());
?>

That should work, since it works with my browser.

The command I use at the Terminal is php scriptname.php.

Answer 1

You can do it by simply aliasing the MAMP php on Apple terminal:

alias phpmamp='/Applications/MAMP/bin/php/php7.0.0/bin/php'

Example: > phpmamp - v

Now you can run something like: > phpmamp scriptname.php

Note: This will be applied only for the current terminal session.

Answer 2

When you face the following issue:

PHP throwing error "Warning: mysql_connect() http://function.mysql-connect: 2002 No such file or directory (trying to connect via unix:///tmp/mysql.sock)"

Set "mysql.default_socket" value in your /etc/php.ini to

 "mysql.default_socket = /var/mysql/mysql.sock". 

Then restart web service in server admin

Answer 3

Since your might use MAMP, either change your Port to the default 3306 or use 127.0.0.1 in the database.php

$db['default'] = array(
    'dsn'   => '',
    'hostname' => 'localhost',// leave it for port 3306
    'username' => 'yourUserhere',
    'password' => 'yourPassword',
    'database' => 'yourDatabase',
    'dbdriver' => 'mysqli',
    'dbprefix' => '',
    'pconnect' => FALSE,
    'db_debug' => (ENVIRONMENT !== 'production'),
    'cache_on' => FALSE,
    'cachedir' => '',
    'char_set' => 'utf8',
    'dbcollat' => 'utf8_general_ci',
    'swap_pre' => '',
    'encrypt' => FALSE,
    'compress' => FALSE,
    'stricton' => FALSE,
    'failover' => array(),
    'save_queries' => TRUE
);

Or with the default settings:

$db['default'] = array(
        'dsn'   => '',
        'hostname' => '127.0.0.1:8889',// leave it for port 8889
        'username' => 'yourUserhere',
        'password' => 'yourPassword',
        'database' => 'yourDatabase',
        'dbdriver' => 'mysqli',
        'dbprefix' => '',
        'pconnect' => FALSE,
        'db_debug' => (ENVIRONMENT !== 'production'),
        'cache_on' => FALSE,
        'cachedir' => '',
        'char_set' => 'utf8',
        'dbcollat' => 'utf8_general_ci',
        'swap_pre' => '',
        'encrypt' => FALSE,
        'compress' => FALSE,
        'stricton' => FALSE,
        'failover' => array(),
        'save_queries' => TRUE
    );

Answer 4

For some reason mysql on OS X gets the locations of the required socket file a bit wrong, but thankfully the solution is as simple as setting up a symbolic link.

You may have a socket (appearing as a zero length file) as /tmp/mysql.sock or /var/mysql/mysql.sock, but one or more apps is looking in the other location for it. Find out with this command:

ls -l /tmp/mysql.sock /var/mysql/mysql.sock

Rather than move the socket, edit config files, and have to remember to keep edited files local and away from servers where the paths are correct, simply create a symbolic link so your Mac finds the required socket, even when it's looking in the wrong place!

If you have /tmp/mysql.sock but no /var/mysql/mysql.sock then...

cd /var 
sudo mkdir mysql
sudo chmod 755 mysql
cd mysql
sudo ln -s /tmp/mysql.sock mysql.sock

If you have /var/mysql/mysql.sock but no /tmp/mysql.sock then...

cd /tmp
ln -s /var/mysql/mysql.sock mysql.sock

You will need permissions to create the directory and link, so just prefix the commands above with sudo if necessary.