如何在循环中查找php中数组的索引

Question

我从MySQL数据库中获取数据...我想检查每一行的索引...例如

while($row=mysql_fetch_array($result)
{
i want index of $row in each row... (current Index).
}

请帮我.谢谢

Answer 1

如果您想要数据库中的索引:

<?php
...
$result = mysql_query("SELECT * FROM whatever");

while($row = mysql_fetch_array($result)) {
    echo $row['index']; 
   # Where index is the field name containing the item ID from your database
}
...
?>

或者,如果要根据输出计算项目数:

<?php
..
$result = mysql_query("SELECT * FROM whatever");
$index = 0;

while($row = mysql_fetch_array($result)) {
    echo $index.' '.$row['whatever'];
    $index++;
}
..
?>

这就是我从你的问题中理解的......