Definition and Usage
定义和用法
The mysql_fetch_array() function returns a row from a recordset as an associative array and/or a numeric array.
mysql_fetch_array()函数的作用是:从结果集中取得一行作为关联数组/从结果集中取得一行作为关联数组,或数字数组,或二者兼有
This function gets a row from the mysql_query() function and returns an array on success, or FALSE on failure or when there are no more rows.
如果函数成功执行,它将获取一行信息(该行是通过执行mysql_query()函数取得的)并返回该行信息;如果失败,将不返回任何一行。
Syntax
语法
mysql_fetch_array(data,array_type)
Parameter
参数 Description
描述
data Required. Specifies which data pointer to use. The data pointer is the result from the mysql_query() function
必要参数。指定需要使用的数据指针[data pointer]。该数据指针是通过请求mysql_query()函数返回的。
array_type Optional. Specifies what kind of array to return.
可选参数。指定返回的数组类型:
Possible values:
可选参数如下:
MYSQL_ASSOC - Associative array
MYSQL_ASSOC – 关联型数组[Associative array]
MYSQL_NUM - Numeric array
MYSQL_NUM – 数值型数组[Numeric array]
MYSQL_BOTH - Default. Both associative and numeric array
MYSQL_BOTH – 默认值。包含关联型数组[Associative array]和数值型数组[Numeric array]
Tips and Notes
提示和注意点
Note: After the data is retrieved, this function moves to the next row in the recordset. Each subsequent call to mysql_fetch_array() returns the next row in the recordset.
注意:当指定的数据获取之后,该函数将指向下一条记录;如果接下来继续请求mysql_fetch_array()函数,那么将返回下一条记录。
Tip: Field names returned by this function are case-sensitive.
提示:通过mysql_fetch_array()函数返回的字段名将不区分字母大小写。
Example
案例
<?php
$con = mysql_connect("localhost", "peter", "abc123");
if (!$con) { die('Could not connect: ' . mysql_error()); }
$db_selected = mysql_select_db("test_db",$con);
$sql = "SELECT * from Person WHERE Lastname='Refsnes'";
$result = mysql_query($sql,$con);print_r(mysql_fetch_array($result));
mysql_close($con);?>
The output of the code above could be:
上述代码将输出下面的结果:
Array([0] => Refsnes[LastName] =>
Refsnes[1] => Kai Jim[FirstName] => Kai Jim[2] =>
Taugata 2[Address] => Taugata 2[3] => 22[Age] => 22)
--转自