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(PECL CUBRID >= 8.3.0)
cubrid_lock_read — Set a read lock on the given OID
$conn_identifier
, string $oid
)
The cubrid_lock_read() function is used to put read
lock on the instance pointed by given oid
.
conn_identifier
Connection identifier.
oid
OID of the instance that you want to put read lock on.
TRUE
, when process is successful.
FALSE
, when process is unsuccessful.
Example #1 cubrid_lock_read() example
<?php
$conn = cubrid_connect ( "localhost" , 33000 , "demodb" , "dba" );
@ cubrid_execute ( $conn , "DROP TABLE foo" );
cubrid_execute ( $conn , "CREATE TABLE foo(a int AUTO_INCREMENT, b set(int), c list(int), d char(10))" );
cubrid_execute ( $conn , "INSERT INTO foo(a, b, c, d) VALUES(1, {1,2,3}, {11,22,33,333}, 'a')" );
cubrid_execute ( $conn , "INSERT INTO foo(a, b, c, d) VALUES(2, {4,5,7}, {44,55,66,666}, 'b')" );
$req = cubrid_execute ( $conn , "SELECT * FROM foo" , CUBRID_INCLUDE_OID );
cubrid_move_cursor ( $req , 1 , CUBRID_CURSOR_FIRST );
$oid = cubrid_current_oid ( $req );
cubrid_lock_read ( $conn , $oid );
$attr = cubrid_get ( $conn , $oid , "b" );
var_dump ( $attr );
$attr = cubrid_get ( $conn , $oid );
var_dump ( $attr );
cubrid_close_request ( $req );
cubrid_disconnect ( $conn );
?>
以上例程会输出:
string(9) "{1, 2, 3}" array(4) { ["a"]=> string(1) "1" ["b"]=> array(3) { [0]=> string(1) "1" [1]=> string(1) "2" [2]=> string(1) "3" } ["c"]=> array(4) { [0]=> string(2) "11" [1]=> string(2) "22" [2]=> string(2) "33" [3]=> string(3) "333" } ["d"]=> string(10) "a " }