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如何从一个表中获取数据并插入到php中的另一个表中

[英]how to fetch data from one table and insert into another table in php

<?php
    $m        = "arushi";
    $em       = "SELECT emailid FROM tblregister WHERE name='$m'";
    $q        = mysql_query($em);
    $n        = mysql_fetch_assoc($q);
    $fullName = mysql_real_escape_string($_POST['name']);
    $address  = mysql_real_escape_string($_POST['address']);
    $mobNo    = mysql_real_escape_string($_POST['dinner']);
    $summary  = "jsf";
    $sql      = "INSERT INTO tbljcustomer VALUES('$m', '$n', '$fullName',     
    '$address','$mobNo', '$summary')";

    if(!(mysql_query($sql)))
    {
        echo "Sorry!!! we were unable to process please try again";
    }
    else
    {
        echo "customized";
    }
?>

执行此操作一切正常,但它不从tblregister获取emailid,而是显示数组或有时显示资源ID#10。 提前致谢

用这个:

$n=mysql_fetch_assoc($q);
$emailid = $n['emailid'];

并且您的查询将更改为

$sql="insert into tbljcustomer values('$m', '$emailid', '$fullName','$address','$mobNo', '$summary')";

你必须使用: $n['emailid']

$ n是一个关联数组。 查看mysql_fetch_assoc的文档。 使用var_dump($n); 如果你想看到数组的结构。 从文档:

mysql_fetch_assoc返回与获取的行对应的字符串关联数组,如果没有更多行,则返回FALSE。

mysql_fetch_assoc返回一个数组尝试:

insert into tbljcustomer values('$m', '".$n['emailid']."', '$fullName',...

更换

$n

$n['emailid']

在您的插入查询中

这将是

$email = $n['emailid'];

$sql="insert into tbljcustomer values('$m', '$email', '$fullName',     
'$address','$mobNo', '$summary')";

更换

$sql      = "INSERT INTO tbljcustomer VALUES('$m', '$n', '$fullName',     
'$address','$mobNo', '$summary')";

$sql      = "INSERT INTO tbljcustomer VALUES('$m', '".$n['emailid']."', '$fullName',     
'$address','$mobNo', '$summary')";

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