PHP mysql_field_seek() 函数

定义和用法

mysql_field_seek() 函数将结果集中的指针设定为指定的字段偏移量。

如果成功，则返回 true，如果失败，则返回 false。

语法

mysql_field_seek(data,field_offset)

例子

<?php
$con = mysql_connect("localhost", "hello", "321");
if (!$con)
{
  die('Could not connect: ' . mysql_error());
}
$db_selected = mysql_select_db("test_db",$con);
$sql = "SELECT * from Person";
$result = mysql_query($sql,$con);
// 跳到第四个字段
mysql_field_seek($result,3);
print_r(mysql_fetch_field($result));
mysql_close($con);
?>

输出：

stdClass Object
(
[name] => Age
[table] => Person
[def] =>
[max_length] => 2
[not_null] => 0
[primary_key] => 0
[multiple_key] => 0
[unique_key] => 0
[numeric] => 1
[blob] => 0
[type] => int
[unsigned] => 0
[zerofill] => 0
)