cubrid_move_cursor
(PECL CUBRID >= 8.3.0)
cubrid_move_cursor — Move the cursor in the result
说明
$req_identifier, int $offset, int $origin = CUBRID_CURSOR_CURRENT): bool
The cubrid_move_cursor() function is used to move the
current cursor location of req_identifier by the
value set in the offset argument, to the direction
set in the origin argument. To set the
origin argument, you can use CUBRID_CURSOR_FIRST
for the first part of the result, CUBRID_CURSOR_CURRENT for the current
location of the result, or CUBRID_CURSOR_LAST for the last part of the
result. If origin argument is not explicitly
designated, then the function uses CUBRID_CURSOR_CURRENT as its default
value.
If the value of cursor movement range goes over the valid limit, then the
cursor moves to the next location after the valid range for the cursor.
For example, if you move 20 units in the result with the size of 10, then
the cursor will move to 11th place and return CUBRID_NO_MORE_DATA.
参数
-
req_identifier -
Request identifier.
-
offset -
Number of units you want to move the cursor.
-
origin -
Location where you want to move the cursor from
CUBRID_CURSOR_FIRST,CUBRID_CURSOR_CURRENT,CUBRID_CURSOR_LAST.
返回值
成功时返回 true， 或者在失败时返回 false。
示例
示例 #1 cubrid_move_cursor() example
<?php
$conn = cubrid_connect("127.0.0.1", 33000, "demodb", "dba");
$req = cubrid_execute($conn, "SELECT * FROM code");
cubrid_move_cursor($req, 1, CUBRID_CURSOR_LAST);
$result = cubrid_fetch_row($req);
var_dump($result);
cubrid_move_cursor($req, 1, CUBRID_CURSOR_FIRST);
$result = cubrid_fetch_row($req);
var_dump($result);
cubrid_move_cursor($req, 1, CUBRID_CURSOR_CURRENT);
$result = cubrid_fetch_row($req);
var_dump($result);
cubrid_close_request($req);
cubrid_disconnect($conn);
?>以上示例会输出：
array(2) {
[0]=>
string(1) "G"
[1]=>
string(4) "Gold"
}
array(2) {
[0]=>
string(1) "X"
[1]=>
string(5) "Mixed"
}
array(2) {
[0]=>
string(1) "M"
[1]=>
string(3) "Man"
}
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