PHP CUBRID 函数 Bind variables to a prepared statement as parameters

说明

cubrid_bind ( resource $req_identifier , int $bind_index , mixed $bind_value [, string $bind_value_type ] ) : bool

The cubrid_bind() function is used to bind values to a corresponding named or question mark placeholder in the SQL statement that was passed to cubrid_prepare(). If bind_value_type is not given, string will be the default.

Note:

If the type of data to be bound is BLOB/CLOB, CUBRID will try to map the data as a PHP stream. If the actually bind value type is not stream, CUBRID will convert it to string, and use it as the full path and file name of a file on the client filesystem.

If the type of data to be bound explicitly is ENUM, the $bind_value argument should be the enum element which is in string format.

In CUBRID shard envrioment, the $bind_value_type must be included in the cubrid_bind function.

The following table shows the types of substitute values.

**CUBRID Bind Date Types**
Support	Bind Type	Corresponding SQL Type
Supported	STRING	CHAR, VARCHAR
	NCHAR	NCHAR, NVARCHAR
	BIT	BIT, VARBIT
	NUMERIC or NUMBER	SHORT, INT, NUMERIC
	FLOAT	FLOAT
	DOUBLE	DOUBLE
	TIME	TIME
	DATE	DATE
	TIMESTAMP	TIMESTAMP
	OBJECT	OBJECT
	ENUM	ENUM
	BLOB	BLOB
	CLOB	CLOB
	NULL	NULL
Not supported	SET	SET
	MULTISET	MULTISET
	SEQUENCE	SEQUENCE

参数

req_identifier: Request identifier as a result of cubrid_prepare().
bind_index: Location of binding parameters. It starts with 1.
bind_value: Actual value for binding.
bind_value_type: A type of the value to bind. (It is omitted by default. Thus, the system internally uses string by default. However, you need to specify the exact type of the value as an argument when they are NCHAR, BIT, or BLOB/CLOB).

返回值

TRUE, when process is successful.

FALSE, when process is unsuccessful.

更新日志

版本	说明
8.3.1	Added BLOB/CLOB data types support.

范例

Example #1 cubrid_bind() example

 <?php
$conn = cubrid_connect("localhost", 33000, "demodb", "dba");

$result = cubrid_execute($conn, "SELECT code FROM event WHERE sports='Basketball' and gender='M'");
$row = cubrid_fetch_array($result, CUBRID_ASSOC);
$event_code = $row["code"];

cubrid_close_request($result);

$game_req = cubrid_prepare($conn, "SELECT athlete_code FROM game WHERE host_year=1992 and event_code=? and nation_code='USA'");
cubrid_bind($game_req, 1, $event_code, "number");
cubrid_execute($game_req);

printf("--- Dream Team (1992 United States men's Olympic basketball team) ---\n");
while ($athlete_code = cubrid_fetch_array($game_req, CUBRID_NUM)) {
    $athlete_req = cubrid_prepare($conn, "SELECT name FROM athlete WHERE code=? AND nation_code='USA' AND event='Basketball' AND gender='M'");
    cubrid_bind($athlete_req, 1, $athlete_code[0], "number");
    cubrid_execute($athlete_req);
    $row = cubrid_fetch_assoc($athlete_req);
    printf("%s\n", $row["name"]);
}

cubrid_close_request($game_req);
cubrid_close_request($athlete_req);

cubrid_disconnect($conn);
?>

以上例程会输出：

--- Dream Team (1992 United States men's Olympic basketball team) ---
Stockton John
Robinson David
Pippen Scottie
Mullin C.
Malone Karl
Laettner C.
Jordan Michael
Johnson Earvin
Ewing Patrick
Drexler Clyde
Bird Larry
Barkley Charles

Example #2 cubrid_bind() BLOB/CLOB example

 <?php
$con = cubrid_connect("localhost", 33000, "demodb", "dba", "");
if ($con) {
    cubrid_execute($con,"DROP TABLE if exists php_cubrid_lob_test");
    cubrid_execute($con,"CREATE TABLE php_cubrid_lob_test (doc_content CLOB)");
    $sql = "INSERT INTO php_cubrid_lob_test(doc_content) VALUES(?)"; 
    $req = cubrid_prepare($con, $sql); 

    $fp = fopen("book.txt", "rb");

    cubrid_bind($req, 1, $fp, "clob"); 
    cubrid_execute($req);  
}
?>

Example #3 cubrid_bind() BLOB/CLOB example

 <?php
$con = cubrid_connect("localhost", 33000, "demodb", "dba", "");
if ($con) {
    cubrid_execute($con,"DROP TABLE if exists php_cubrid_lob_test");
    cubrid_execute($con,"CREATE TABLE php_cubrid_lob_test (image BLOB)");
    $sql = "INSERT INTO php_cubrid_lob_test(image) VALUES(?)"; 
    $req = cubrid_prepare($con, $sql); 

    cubrid_bind($req, 1, "cubrid_logo.png", "blob"); 
    cubrid_execute($req);  
}
?>

参见

cubrid_execute() - Execute a prepared SQL statement
cubrid_prepare() - Prepare a SQL statement for execution