将变量从表单传递到下一页并放入sql语句php答案

【问题标题】：Pass variable from form to next page and put in sql statment php将变量从表单传递到下一页并放入sql语句php
【发布时间】：2015-10-05 12:30:50
【问题描述】：

这就是我想要做的。我有一个需要从数据库中提取数据的下拉列表（和/或 excel 类型的外观）。当我选择了一个项目时，我需要通过会话将信息传递到下一页。我有从数据库中拉出的下拉菜单，但我需要在下拉列表中列出姓名和地址。

如果这不可能，我可以从搜索中列出项目列表，但我需要将 id 设为链接，以便将 id 传递到需要构建报告的下一页。

如果您能给我一些这方面的信息，我将不胜感激。

这是我在下拉列表中的代码

代码：全选

<?php   
// declare database connection variables.
$host = "localhost";
$username = "root";
$password = "";
$db_name = "sample";
$tbl_name = "tbl_report";

// connect to server and select database.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");

$sql = "SELECT id, name, address FROM $tbl_name";
$result = mysql_query($sql) or die(mysql_error());

$dropdown = "<form action='report.php' method='post'>"; 

$dropdown .= "<select name='items' class='select'>";

while ($row = mysql_fetch_assoc($result)) {
$dropdown .= '<option value="' . $row['id'] . '">' . 
$row['name'] . ' - ' . $row['address'] . '</option>';;
}
$dropdown .= "\r\n</select>";
$dropdown .= "<input type='submit' name='submit' value='Submit'>";
$dropdown .= "</form>"; //closing the form tag
echo $dropdown;
?>

我需要做的是将 ID 传递到下一页并让 $id 显示在我的下一条 sql 语句的代码中。

这是我用于下一页 sql 语句的代码。

select * from $tbl_name where id = (this is where I get hung up on.)

我需要一种将 $row['id'] 传递到下一页并将其放入 sql 代码中，然后使用 get 方法在该页面的表单上显示信息的方法。

这是页面的设置。 select-report.php（这是下拉菜单的位置）--> report.php.

这是 report.php 的表单，我需要在其中继承 id 的值并执行 select * from $tbl_name where id=[$post=items]; 的 sql然后我需要使用 $get 将所有项目放在下面的表格中：

<form id="form1" name="form1" method="post" action="">
<table width="100%" border="0" cellspacing="4" cellpadding="4">
<tr>
<td width="20%">Water Purveyor
<input name="water-purveyor" type="text" id="water-purveyor" size="35" />
</td>
<td colspan="2">Facility Contact
<input type="text" name="facility-contact" id="facility-contact" /></td>
<td colspan="2">Facility Address
<input type="text" name="facility-address" id="facility-address" /></td>
</tr>
<tr>
<td>Manufacturer
<input type="text" name="manufacturer" id="manufacturer" /></td>
<td width="20%">State
<select name="state" id="state">
</select></td>
<td width="20%">Model #
<input name="model-num" type="text" id="model-num" size="10" /></td>
<td width="20%">Serial #
<input name="serial-num" type="text" id="serial-num" size="10" /></td>
<td width="20%">Meter #
<input name="meter-num" type="text" id="meter-num" size="10" /></td>
</tr>
<tr>
<td>Owner
<input type="text" name="owner" id="owner" /></td>
<td>Phone #
<input name="phone-num" type="text" id="phone-num" size="12" /></td>
<td>Caged
<input type="checkbox" name="caged" id="caged" /></td>
<td>Locked
<input type="checkbox" name="locked" id="locked" /></td>
<td>Code key
<input name="code-key" type="text" id="code-key" size="6" /></td>
</tr>
<tr>
<td colspan="2">Owner Address
<input name="owner-address" type="text" id="owner-address" size="50" /></td>
<td>Owner City
<input type="text" name="owner-city" id="owner-city" /></td>
<td>Owner State
<select name="owner-state" id="owner-state">
</select></td>
<td>Owner Zip
<input name="owner-zip" type="text" id="owner-zip" size="10" /></td>
</tr>
<tr>
<td>Contact
<input type="text" name="contact" id="contact" /></td>
<td>Contact Phone
<input name="contact-phone" type="text" id="contact-phone" size="10" /></td>
<td>&nbsp;</td>
<td>Other</td>
<td>&nbsp;</td>
</tr>
<tr>
<td colspan="2">Facility Name
<input name="facility-name" type="text" id="facility-name" size="40" /></td>
<td colspan="3">Assembly Address
<input name="assembly-address" type="text" id="assembly-address" size="75" /></td>
</tr>
<tr>
<td colspan="5">Onsite Location
<input name="onsite-location" type="text" id="onsite-location" size="75" /></td>
</tr>
<tr>
<td colspan="5">email Address
<input name="email" type="text" id="email" size="125" /></td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>SHUTOFF VALVES</td>
<td colspan="2"><table width="100%" border="0" cellspacing="4" cellpadding="4">
<tr>
<td>N/A</td>
<td>Good</td>
<td>Poor</td>
<td>Fail</td>
</tr>
</table></td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Valve 1</td>
<td colspan="2"><table width="100%" border="0" cellspacing="4" cellpadding="4">
<tr>
<td><input type="checkbox" name="v1-na" id="v1-na" /></td>
<td><input type="checkbox" name="v1-good" id="v1-good" /></td>
<td><input type="checkbox" name="v1-poor" id="v1-poor" /></td>
<td><input type="checkbox" name="v1-fail" id="v1-fail" /></td>
</tr>
</table></td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Valve 2</td>
<td colspan="2"><table width="100%" border="0" cellspacing="4" cellpadding="4">
<tr>
<td><input type="checkbox" name="v2-na" id="v2-na" /></td>
<td><input type="checkbox" name="v2-good" id="v2-good" /></td>
<td><input type="checkbox" name="v2-poor" id="v2-poor" /></td>
<td><input type="checkbox" name="v2-fail" id="v2-fail" /></td>
</tr>
</table></td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Assembly Replacement?
<input type="checkbox" name="assembly-replacement" id="assembly-replacement" /></td>
<td>if yes Serial #
<input type="text" name="assembly-replacement-serial" id="assembly-replacement-serial" /></td>
<td>New Installation 
<input type="checkbox" name="new-install" id="new-install" /></td>
<td>Permit #
<input type="text" name="permit-num" id="permit-num" /></td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Containment
<input type="checkbox" name="containment" id="containment" /></td>
<td>Isolation
<input type="checkbox" name="isolation" id="isolation" /></td>
<td colspan="2">Assembly Ground Clearance
<input type="text" name="assembly-ground-clearance" id="assembly-ground-clearance" /></td>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Domestic
<input type="checkbox" name="domestic" id="domestic" /></td>
<td>Irrigation
<input type="checkbox" name="irrigation" id="irrigation" /></td>
<td>Fire Line
<input type="checkbox" name="fire-line" id="fire-line" /></td>
<td>Alarmed Fire Line
<input type="checkbox" name="alarmed-fire-line" id="alarmed-fire-line" /></td>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td colspan="2"><strong><em><u>Double Check Balve Assembly Repair</u></em></strong></td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Repairs</td>
<td>Check Valve 1</td>
<td>&nbsp;</td>
<td>Check Valve 2</td>
<td>&nbsp;</td>
</tr>
<tr>
<td rowspan="3">&nbsp;</td>
<td>Cleaned 
<input type="checkbox" name="cv1-repair-cleaned" id="cv1-repair-cleaned" /></td>
<td>&nbsp;</td>
<td>Cleaned
<input type="checkbox" name="cv2-repair-cleaned" id="cv2-repair-cleaned" /></td>
<td>&nbsp;</td>
</tr>
<tr>
<td><strong>Replaced</strong></td>
<td>&nbsp;</td>
<td><strong>Replaced</strong></td>
<td>&nbsp;</td>
</tr>
<tr>
<td>Rubber Kit
<input type="checkbox" name="cv1-rubber-kit" id="cv1-rubber-kit" /></td>
<td>&nbsp;</td>
<td>Rubber Kit
<input type="checkbox" name="cv2-rubber-kit" id="cv2-rubber-kit" /></td>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>Other 
<input type="checkbox" name="cv1-other" id="cv1-other" /></td>
<td>&nbsp;</td>
<td>Other
<input type="checkbox" name="cv2-other" id="cv2-other" /></td>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
<td colspan="2">Comments      
<textarea name="cv1-other-comments" id="cv1-other-comments" cols="45" rows="5"></textarea></td>
<td colspan="2">Comments
<textarea name="cv2-other-comments" id="cv2-other-comments" cols="45" rows="5"></textarea></td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td colspan="2">Initial Test By      
<input name="initial-test-by" type="text" id="initial-test-by" size="50" /></td>
<td colspan="2">Certified Tester #
<input type="text" name="certified-tester-num" id="certified-tester-num" /></td>
<td>Test Date/Time
<input type="text" name="test-date-time" id="test-date-time" /></td>
</tr>
<tr>
<td>Pass      
<input type="checkbox" name="initial-test-pas" id="initial-test-pas" /></td>
<td>Fail
<input type="checkbox" name="initial-test-fail" id="initial-test-fail" /></td>
<td colspan="2">Calib Expire Date
<input type="text" name="calib-expire-date" id="calib-expire-date" /></td>
<td>Guage Serial #
<input type="text" name="gague-serial-num" id="gague-serial-num" /></td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td colspan="2">Repair Test By
<input name="repair-test-by" type="text" id="repair-test-by" size="50" /></td>
<td colspan="2">Repair Date/Time
<input type="text" name="repair-date-time" id="repair-date-time" /></td>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td colspan="2">Final Test by
<input name="final-test-by" type="text" id="final-test-by" size="50" /></td>
<td colspan="2">Certified Tester #
<input type="text" name="ft-certified-tester-num" id="ft-certified-tester-num" /></td>
<td>Test Date/Time
<input type="text" name="ft-date-time" id="ft-date-time" /></td>
</tr>
<tr>
<td>Pass
<input type="checkbox" name="ft-pass" id="ft-pass" /></td>
<td>Fail
<input type="checkbox" name="ft-fail" id="ft-fail" /></td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td colspan="5">Comments
<textarea name="comments" id="comments" cols="80" rows="5"></textarea></td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
</tr>
<tr>
<td colspan="2">Video upload <input type="file" name="uploadvideo"  /></td>
<td colspan="2">Image 1 <input type="file" name="uploadimage"  /></td>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td colspan="2">Image 2 <input type="file" name="uploadimage2"  /></td>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td colspan="2">Image 3 <input type="file" name="uploadimage3"  /></td>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td colspan="2">Image 4 <input type="file" name="uploadimage4"  /></td>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td colspan="2">Image 5 <input type="file" name="uploadimage5"  /></td>
<td>&nbsp;</td>
</tr>
</table>
</form>

【问题讨论】：

删除 method='post'，如果您希望它是 get（或将 post 更改为 get）。值应可通过$_GET['items'] 访问。
在查询前添加 print_r($_POST) 并检查发布的内容。

标签： php jquery mysql sql

【解决方案1】：

你可以像这样使用 jquery when 来获取选中的值

$("#dropdownid").change(function({  var vals = $(this).val(); })

然后当您重定向到下一页时，将其添加为获取参数

【讨论】：

【解决方案2】：

(report.php)

if(isset($_REQUEST['submit'])){
     $option = $_POST['items'];
     mysql_query("SELECT * FROM `table_name` WHERE FIELD_NAME = '$options'");
}

【讨论】：

SQL 可注入。此外，如果使用请求 submit 为什么不使用 if 来设置 option 值？

【解决方案3】：

    if(isset($_REQUEST['submit'])){
     $option = $_REQUEST['items'];
     mysql_query("SELECT * FROM `table_name` WHERE FIELD_NAME = '$options'");
}

【讨论】：

【解决方案4】：

您可以使用 php 会话将值传递到下一页。

$_SESSION ['name'] = $value;

您可以从下一页使用 php 会话获取价值。

$value = $_SESSION ['name'];

【讨论】：

OP 也需要启动会话。