当从多个选择查询中设置多个变量值时出错

如何在php中设置多个来自多个select查询的变量值。这里是PHP代码（trans.php）当从多个选择查询中设置多个变量值时出错

<?php 
include('config.inc'); 
$pname  = $_POST['pname']; 
$usrname  = $_POST['usrname']; 
$iname  = $_POST['iname']; 
$udec  = $_POST['udec']; 
$usize  = $_POST['usize']; 
$qty   = $_POST['qty']; 
$lname  = $_POST['lname']; 

$p_id = mysql_result(mysql_query("SELECT `id` FROM `project_master` WHERE (`Project_Code` = '" . $_POST['pname'] . "') "),0); 
$user_id = mysql_result(mysql_query("SELECT `u_id` FROM `user` WHERE (`user_name` = '" . $_POST['usrname']. "') "),0); 
$i_id = mysql_result(mysql_query("SELECT `id` FROM `item_master` WHERE (`item_name` = '" . $_POST['iname'] . "') "),0); 
$unit_id = mysql_result(mysql_query("SELECT `id` FROM `unit_mstr` WHERE(`Unit_Name` = '" . $_POST['udec'] . "') "),0); 
$loc_id = mysql_result(mysql_query("SELECT `id` FROM `location_mstr` WHERE(`l_name`  = '" . $_POST['lname'] . "') "),0); 
$sql= " INSERT INTO project_transaction_header(project_id, u_id, item_Id, unit_id,Size, Qty, location_id, Created_On, Created_By, Modified_on, Modified_By) VALUES ('$p_id','$user_id','$i_id',$unit_id','$item_size','$item_qty','$loc_id',now(),'‌system',now(),'system');";

，但我得到了错误

Notice: Undefined index: usrname in C:\xampp\htdocs\alogin\ptrans.php on line 14 

Warning: mysql_result(): Unable to jump to row 0 on MySQL result index 6 

Notice: Undefined index: iname in ..\..\ptrans.php on line 15 

Warning: mysql_result(): Unable to jump to row 0 on MySQL result index 7 

Notice: Undefined index: udec in ..\..\ptrans.php on line 16 

Warning: mysql_result(): Unable to jump to row 0 on MySQL result index 8 

Notice: Undefined index: lname in ..\..\ptrans.php on line 17

我通过邮寄方式收到来自我的html页面vaules ..

这里是我的HTML代码在这里我称之为PHP Transition.html

<HTML> 
<head> 
</head> 
    <body> 
    <div id="loginAdmin" class="animate form" > 
    <form class="cbp-mc-form" action="ptrans.php" id="trans" method="post" > 
    <div class="cbp-mc-column"> 
    <p><label>Project Name:</label> <input name="pname"id="pname" type="text" autocomplete="off"></p> 
    &nbsp&nbsp 
    <p><label>User Name:</label> <input id="usrname" name="usrname"type="text" autocomplete="off"></p> 
    &nbsp&nbsp 
    <p><label>Itme Name:</label> <input id="iname" name="iname" type="text" autocomplete="off"></p> 
    </div> 
    <div class="cbp-mc-column">         
    <p><label>Unit Dec:</label> <input id="udec" name="udec" type="text" autocomplete="off"></p> 
    &nbsp&nbsp 
    <p><label>Size:</label> <input id="usize" name="usize" type="text" autocomplete="off"></p> 
    &nbsp&nbsp 
    <p><label>QTY:</label> <input id="qty" name="qty" type="text" autocomplete="off"></p> 
    </div> 
    <div class="cbp-mc-column"> 
    <p><label>Location Name:</label> <input name="lname" id="lname" type="text" autocomplete="off"></p> 
    </div> 
    <div style="margin-top: 530px;"class="cbp-mc-submit-wrap"><input class="cbp-mc-submit" type="submit" value="SUBMIT" /> 
<input class="cbp-mc-submit" type="reset" name="reset" id="reset" value="Reset" /> 
</div>        
    </form>      
    </div> 
    </body> 
    </html>

来源

2013-08-25 Nfunchar

请请停止使用mysql_query，mysql_result类似古代，不赞成和不稳定的方法。 – edigu

你的第一个（虚拟）代码中没有提到'usrname'。请发布您的真实代码。 –

@foozy对不起，我在这是新的，首先我试图创建过程，但我无法在PHP中调用，所以我不得不通过旧的方法.. plz帮助我，如果你知道新的方法来设置多个变量 – Nfunchar

用户var_dump($_POST);查看变量的实际名称。 Usrname和其他索引根本不在数组中定义。

使用mysqli函数在PHP不是mysql，因为它们已经被弃用了，并且它们不会被用在未来版本的php中。

来源

2013-08-25 16:19:27 JTC

当从多个选择查询中设置多个变量值时出错

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