Costanti predefinite

Queste costanti sono definite da questa estensione e sono disponibili solo se l'estensione è stata compilata nel PHP o se è stata caricata dinamicamente a runtime.

It is possible to specify additional client flags for the mysql_connect() and mysql_pconnect() functions. The following constants are defined:

MySQL client constants
Constant Description
MYSQL_CLIENT_COMPRESS Use compression protocol
MYSQL_CLIENT_IGNORE_SPACE Allow space after function names
MYSQL_CLIENT_INTERACTIVE Allow interactive_timeout seconds (instead of wait_timeout ) of inactivity before closing the connection.
MYSQL_CLIENT_SSL Use SSL encryption. This flag is only available with version 4.x of the MySQL client library or newer. Version 3.23.x is bundled both with PHP 4 and Windows binaries of PHP 5.

The function mysql_fetch_array() uses a constant for the different types of result arrays. The following constants are defined:

MySQL fetch constants
Constant Description
MYSQL_ASSOC Columns are returned into the array having the fieldname as the array index.
MYSQL_BOTH Columns are returned into the array having both a numerical index and the fieldname as the array index.
MYSQL_NUM Columns are returned into the array having a numerical index to the fields. This index starts with 0, the first field in the result.

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User Contributed Notes 3 notes

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9
pcdinh at phpvietnam dot net
10 years ago
Other client flags extracted from MySQL client source

#define CLIENT_LONG_PASSWORD 1 /* new more secure passwords */
#define CLIENT_FOUND_ROWS 2 /* Found instead of affected rows */
#define CLIENT_LONG_FLAG 4 /* Get all column flags */
#define CLIENT_CONNECT_WITH_DB 8 /* One can specify db on connect */
#define CLIENT_NO_SCHEMA 16 /* Don't allow database.table.column */
#define CLIENT_COMPRESS 32 /* Can use compression protocol */
#define CLIENT_ODBC 64 /* Odbc client */
#define CLIENT_LOCAL_FILES 128 /* Can use LOAD DATA LOCAL */
#define CLIENT_IGNORE_SPACE 256 /* Ignore spaces before '(' */
#define CLIENT_PROTOCOL_41 512 /* New 4.1 protocol */
#define CLIENT_INTERACTIVE 1024 /* This is an interactive client */
#define CLIENT_SSL 2048 /* Switch to SSL after handshake */
#define CLIENT_IGNORE_SIGPIPE 4096 /* IGNORE sigpipes */
#define CLIENT_TRANSACTIONS 8192 /* Client knows about transactions */
#define CLIENT_RESERVED 16384 /* Old flag for 4.1 protocol */
#define CLIENT_SECURE_CONNECTION 32768 /* New 4.1 authentication */
#define CLIENT_MULTI_STATEMENTS 65536 /* Enable/disable multi-stmt support */
#define CLIENT_MULTI_RESULTS 131072 /* Enable/disable multi-results */
#define CLIENT_REMEMBER_OPTIONS (((ulong) 1) << 31)
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6
frak at gingerhq dot net
8 years ago
If you're using stored procedures and mysql_error() returns "PROCEDURE storedProcedureName can't return a result set in the given context", you need to pass an additional flag (CLIENT_MULTI_RESULTS) to mysql_connect() as such:
mysql_connect($hostname, $username, $password, true, 131072);

Some other sources say that you should use 65536. 65536 is actually the flag to allow multiple statements in a single mysql_query(), and is a security issue. The reason it allows you to receive results from stored procedures is because it implies 131072. To be safe, use 131072 over 65536.
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-1
Contact at LinuxIntro dot com
11 years ago
When you connect and expect to use a stored procedure,you must pass a special flag to MySQL via the connect command, otherwise you will not get the results returned, and it will result in this error:
PROCEDURE AlexGrim.GetStats_ForumCategories can't return a result set in the given context

To fix this, change you connection string, adding ",false,65536" as the last 2 fields:
$this->con = mysql_connect($this->h,$this->u,$this->p,false,65536);
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