oci_bind_by_name

(no version information, might be only in CVS)

oci_bind_by_name --  Binds the PHP variable to the Oracle placeholder

Description

bool oci_bind_by_name ( resource stmt, string ph_name, mixed &variable [, int maxlength [, int type]])

oci_bind_by_name() binds the PHP variable variable to the Oracle placeholder ph_name. Whether it will be used for input or output will be determined at run-time and the necessary storage space will be allocated. The length parameter sets the maximum length for the bind. If you set length to -1 oci_bind_by_name() will use the current length of variable to set the maximum length.

If you need to bind an abstract datatype (LOB/ROWID/BFILE) you need to allocate it first using the oci_new_descriptor() function. The length is not used for abstract datatypes and should be set to -1. The type parameter tells Oracle which descriptor is used. Possible values are:

  • OCI_B_FILE - for BFILEs;

  • OCI_B_CFILE - for CFILEs;

  • OCI_B_CLOB - for CLOBs;

  • OCI_B_BLOB - for BLOBs;

  • OCI_B_ROWID - for ROWIDs;

  • OCI_B_NTY - for named datatypes;

  • OCI_B_CURSOR - for cursors, that were created before with oci_new_cursor().

例子 1. oci_bind_by_name()example

<?php
/* oci_bind_by_name example thies at thieso dot net (980221)
  inserts 3 records into emp, and uses the ROWID for updating the
  records just after the insert.
*/

$conn = oci_connect("scott", "tiger");

$stmt = oci_parse($conn, "
                          INSERT INTO
                                     emp (empno, ename)
                                              VALUES
                                     (:empno,:ename)
                            RETURNING
                                     ROWID
                                 INTO
                                     :rid
                                         "
);

$data = array(
              
1111 => "Larry",
              
2222 => "Bill",
              
3333 => "Jim"
             
);

$rowid = oci_new_descriptor($conn, OCI_D_ROWID);

oci_bind_by_name($stmt, ":empno", $empno, 32);
oci_bind_by_name($stmt, ":ename", $ename, 32);
oci_bind_by_name($stmt, ":rid",   $rowid, -1, OCI_B_ROWID);

$update = oci_parse($conn, "
                            UPDATE
                                  emp
                               SET
                                  sal = :sal
                             WHERE
                                  ROWID = :rid
                             "
);
oci_bind_by_name($update, ":rid", $rowid, -1, OCI_B_ROWID);
oci_bind_by_name($update, ":sal", $sal,   32);

$sal = 10000;

while (list(
$empno, $ename) = each($data)) {
    
oci_execute($stmt);
oci_execute($update);
}

$rowid->free();

oci_free_statement($update);
oci_free_statement($stmt);

$stmt = oci_parse($conn, "
                          SELECT
                                *
                            FROM
                                emp
                           WHERE
                                empno
                              IN
                                (1111,2222,3333)
                              "
);
oci_execute($stmt);
                              
while (
$row = oci_fetch_assoc($stmt)) {
    
var_dump($row);
}

oci_free_statement($stmt);

/* delete our "junk" from the emp table.... */
$stmt = oci_parse($conn, "
                          DELETE FROM
                                     emp
                                WHERE
                                     empno
                                   IN
                                     (1111,2222,3333)
                                   "
);
oci_execute($stmt);
oci_free_statement($stmt);

oci_close($conn);
?>

Remember, that this function strips trailing whitespace. See the following example:

例子 2. oci_bind_by_name() example

<?php
    $connection
= oci_connect('apelsin','kanistra');
    
$query = "INSERT INTO test_table VALUES(:id, :text)";

    
$statement = oci_parse($query);
    
oci_bind_by_name($statement, ":id", 1);
    
oci_bind_by_name($statement, ":text", "trailing spaces follow     ");
    
oci_execute($statement);
    
/*
     This code will insert into DB string 'trailing spaces follow', without
     trailing spaces
    */
?>

例子 3. oci_bind_by_name() example

<?php
    $connection
= oci_connect('apelsin','kanistra');
    
$query = "INSERT INTO test_table VALUES(:id, 'trailing spaces follow      ')";

    
$statement = oci_parse($query);
    
oci_bind_by_name($statement, ":id", 1);
    
oci_execute($statement);
    
/*
     And this code will add 'trailing spaces follow      ', preserving
     trailing whitespaces
    */
?>

警告

Do not use magic_quotes_gpc or addslashes() and oci_bind_by_name() simultaneously as no quoting is needed and any magically applied quotes will be written into your database as oci_bind_by_name() is not able to distinguish magically added quotings from those added intentionally.

如果成功则返回 TRUE,失败则返回 FALSE