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PHP : Function Reference : MySQL Improved Extension : mysqli_connect

mysqli_connect

Open a new connection to the MySQL server (PHP 5)
mysqli mysqli_connect ( [string host [, string username [, string passwd [, string dbname [, int port [, string socket]]]]]] )

Example 1480. Object oriented style

<?php
$mysqli
= new mysqli("localhost", "my_user", "my_password", "world");

/* check connection */
if (mysqli_connect_errno()) {
   
printf("Connect failed: %s\n", mysqli_connect_error());
   exit();
}

printf("Host information: %s\n", $mysqli->host_info);

/* close connection */
$mysqli->close();
?>

Example 1481. Procedural style

<?php
$link
= mysqli_connect("localhost", "my_user", "my_password", "world");

/* check connection */
if (!$link) {
   
printf("Connect failed: %s\n", mysqli_connect_error());
   exit();
}

printf("Host information: %s\n", mysqli_get_host_info($link));

/* close connection */
mysqli_close($link);
?>

Code Examples / Notes » mysqli_connect

gazzer

Yes, it's totally odd that php.ini doesn't seem to allow you to global specify the client connection as utf-8. You might try this in the
my.cnf file
[client]
default-character-set=utf8
[mysqld]
default-character-set=utf8
It didn't work for me, but others may have better luck. In the end I had to specify in the php code as noted below.


martin dot velek

When you need more(less) timeout, you can use this. This only guarantees that host and port are opened. It is suitable on the very high speed networks(LAN) and where one second is not acceptable.
$timeoutInSeconds can be set to any numeric value
e.g. "1/2", "0.500","0.1","0.01" etc.
--------------------------------------------------------------
function getmicrotime()
{
   list($usec, $sec) = explode(" ",microtime());
   return ((float)$usec + (float)$sec);
}
$time_start = getmicrotime();
$fp = fsockopen("$mysqlHost",$mysqlPort, $errno, $errstr,$timeoutInSeconds);
if (!$fp)
{
     //timeout mostly
     echo "ERR: $errno - $errstr
\n";
     $time_end = getmicrotime();
     $time = $time_end - $time_start;
     echo "Timeout $time sekund";
}
else
{
    fclose($fp);
}


nonerr gmail.com

This helped me:
<?php
$db = mysqli_connect($host, $login, $pass, $dbName);
$db->set_charset('utf8');
...
?>


niel archer

A quick word about the connection encoding for this extension.  It doesn't appear to be documented anywhere that I can find, but this defaults to latin1 encoding for the connection, regardless of PHP's or MySQL's settings.  I run in a completely UTF-8 setup, and spent days trying to discover the cause of corrupted characters from the Db.  If, like me, you need to work with other than latin1, use the set_charset function/method to switch to your encoding of choice.

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mysqli_affected_rows
mysqli_autocommit
mysqli_bind_param
mysqli_bind_result
mysqli_change_user
mysqli_character_set_name
mysqli_client_encoding
mysqli_close
mysqli_commit
mysqli_connect_errno
mysqli_connect_error
mysqli_connect
mysqli_data_seek
mysqli_debug
mysqli_disable_reads_from_master
mysqli_disable_rpl_parse
mysqli_dump_debug_info
mysqli_embedded_server_end
mysqli_embedded_server_start
mysqli_enable_reads_from_master
mysqli_enable_rpl_parse
mysqli_errno
mysqli_error
mysqli_escape_string
mysqli_execute
mysqli_fetch_array
mysqli_fetch_assoc
mysqli_fetch_field_direct
mysqli_fetch_field
mysqli_fetch_fields
mysqli_fetch_lengths
mysqli_fetch_object
mysqli_fetch_row
mysqli_fetch
mysqli_field_count
mysqli_field_seek
mysqli_field_tell
mysqli_free_result
mysqli_get_charset
mysqli_get_client_info
mysqli_get_client_version
mysqli_get_host_info
mysqli_get_metadata
mysqli_get_proto_info
mysqli_get_server_info
mysqli_get_server_version
mysqli_get_warnings
mysqli_info
mysqli_init
mysqli_insert_id
mysqli_kill
mysqli_master_query
mysqli_more_results
mysqli_multi_query
mysqli_next_result
mysqli_num_fields
mysqli_num_rows
mysqli_options
mysqli_param_count
mysqli_ping
mysqli_prepare
mysqli_query
mysqli_real_connect
mysqli_real_escape_string
mysqli_real_query
mysqli_report
mysqli_rollback
mysqli_rpl_parse_enabled
mysqli_rpl_probe
mysqli_rpl_query_type
mysqli_select_db
mysqli_send_long_data
mysqli_send_query
mysqli_server_end
mysqli_server_init
mysqli_set_charset
mysqli_set_local_infile_default
mysqli_set_local_infile_handler
mysqli_set_opt
mysqli_slave_query
mysqli_sqlstate
mysqli_ssl_set
mysqli_stat
mysqli_stmt_affected_rows
mysqli_stmt_attr_get
mysqli_stmt_attr_set
mysqli_stmt_bind_param
mysqli_stmt_bind_result
mysqli_stmt_close
mysqli_stmt_data_seek
mysqli_stmt_errno
mysqli_stmt_error
mysqli_stmt_execute
mysqli_stmt_fetch
mysqli_stmt_field_count
mysqli_stmt_free_result
mysqli_stmt_get_warnings
mysqli_stmt_init
mysqli_stmt_insert_id
mysqli_stmt_num_rows
mysqli_stmt_param_count
mysqli_stmt_prepare
mysqli_stmt_reset
mysqli_stmt_result_metadata
mysqli_stmt_send_long_data
mysqli_stmt_sqlstate
mysqli_stmt_store_result
mysqli_store_result
mysqli_thread_id
mysqli_thread_safe
mysqli_use_result
mysqli_warning_count
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