$connection = mysql_connect($db_host, $db_username, $db_password); if (!$connection){ die ("Could not connect to the database: <br />". mysql_error( )); } 函数mysql_connect的参数是数据库服务器主机、用户名和密码。如果连接成功,就会返回新建立的连接,如果不能建立连接就会返回FALSE。检查...
# $ php-f db-connect-test.php $dbname='name';$dbuser='user';$dbpass='pass';$dbhost='host';$link=mysqli_connect($dbhost,$dbuser,$dbpass)ordie("Unable to Connect to '$dbhost'");mysqli_select_db($link,$dbname)ordie("Could not open the db '$dbname'");$test_query="SHOW T...
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record and files where a set of fields makes the records and set of records makes a file. Note that we are going to use PHP to connect to the MySQL database.
When mysql_connect runs, it either creates or reuses an existing connection to your database. It then returns that connection to your PHP program, and makes available all the other PHP-to-MySQL commands you’ll learn about soon. But if mysql_connect can’t create that connection—for ...
>connect_errno) {die("could not connect to the database:\n" .$mysqli->connect_error);//诊断连接错误}$mysqli->query("set names 'utf8';");//编码转化$select_db=$mysqli->select_db($mysql_conf['db']);if(!$select_db) {die("could not connect to the db:\n" .$mysqli->error)...
php-mysql.i386 5.1.6-32.el5 Server php-ncurses.i386 5.1.6-32.el5 Server php-odbc.i386 5.1.6-32.el5 Server php-pdo.i386 5.1.6-32.el5 Server php-pear.noarch 1:1.4.9-8.el5 Server php-pgsql.i386 5.1.6-32.el5 Server php-snmp.i386 5.1.6-32.el5 Server ...
// Note how we cut the string at a non-Ascii character for demonstration purposes$string=mb_substr($string,0,15);// Connect to a database to store the transformed string // See the PDO example in this document for more information ...
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:386) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330) at com.intellij.database.remote.jdbc.impl.RemoteDriverImpl.connect(RemoteDriverImpl.java:27) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ...
PHP mysqli versionIn the following example, we determine the version of the MySQL database. version.php <?php $con = new mysqli("localhost", "dbuser", "passwd", "mydb"); if ($con->connect_errno) { printf("connection failed: %s\n", $con->connect_error()); exit(); } $res ...