CUBRID_LOCK_READ(3)							 1						       CUBRID_LOCK_READ(3)

cubrid_lock_read - Set a read lock on the given OID

SYNOPSIS

       bool cubrid_lock_read (resource	$conn_identifier, string  $oid)

DESCRIPTION

	The cubrid_lock_read(3) function is used to put read lock on the instance pointed by given $oid.

PARAMETERS

	      o $conn_identifier
		-Connection identifier.

	      o $oid
		-OID of the instance that you want to put read lock on.

RETURN VALUES

       TRUE, when process is successful.

       FALSE, when process is unsuccessful.

EXAMPLES

       Example #1

	      cubrid_lock_read(3) 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);
	      ?>

	      The above example will output:

	      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	      "
	      }

SEE ALSO

       cubrid_lock_write(3).

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