Original MySQL API (
Mysql
)
2248
<?php
$link = mysql_connect('localhost', 'mysql_user', 'mysql_password');
if (!$link) {
die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully';
mysql_close($link);
?>
Example 20.28.
mysql_connect
example using
hostname:port
syntax
<?php
// we connect to example.com and port 3307
$link = mysql_connect('example.com:3307', 'mysql_user', 'mysql_password');
if (!$link) {
die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully';
mysql_close($link);
// we connect to localhost at port 3307
$link = mysql_connect('127.0.0.1:3307', 'mysql_user', 'mysql_password');
if (!$link) {
die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully';
mysql_close($link);
?>
Example 20.29.
mysql_connect
example using ":/path/to/socket" syntax
<?php
// we connect to localhost and socket e.g. /tmp/mysql.sock
// variant 1: omit localhost
$link = mysql_connect(':/tmp/mysql', 'mysql_user', 'mysql_password');
if (!$link) {
die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully';
mysql_close($link);
// variant 2: with localhost
$link = mysql_connect('localhost:/tmp/mysql.sock', 'mysql_user', 'mysql_password');
if (!$link) {
die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully';
mysql_close($link);
?>
Notes
Note
Whenever you specify "localhost" or "localhost:port" as server, the MySQL client
library will override this and try to connect to a local socket (named pipe on
Windows). If you want to use TCP/IP, use "127.0.0.1" instead of "localhost".
If the MySQL client library tries to connect to the wrong local socket, you
should set the correct path as
mysql.default_host
string
in your PHP
configuration and leave the server field blank.
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