Question

我目前正在尝试从两个不同的表中获取两段数据，并以“编辑”类型格式显示它们。

我可以使用$ _GET [id]变量显示“事件”或“位置”作为使用incidentID主键引用的方式。我考虑过设置我的数据库自动序列，以便事件和位置同步，但这不是真正的解决方案。

如何使用$ _GET [id]变量调用两个不同的表？

代码如下，在旁注上我知道我的sql是开放注射的，我应该在手腕上拍打不使用PDO。

我可以添加数据库结构，如果这会有所帮助，但我更愿意将数据库结构保留在当前的位置。

首先搜索数据文件）。 '\ connection.php';

// Process the search query
if(isset($_POST['searchquery']) && $_POST['searchquery'] != ""){
// run code if condition meets here 
    $searchquery = preg_replace('#[^a-z 0-9?]#i', '', $_POST['searchquery']);
    if($_POST['filter1'] == "0"){
        $sqlCommand = "SELECT * FROM `incident` WHERE `iTypeID` = 0 AND `disasterName` LIKE '%$searchquery%'";
    }else if($_POST['filter1'] == "1"){
        $sqlCommand = "SELECT incidentID FROM `incident` WHERE `iTypeID` = 2 AND `disasterName` LIKE '%$searchquery%'";
    }else if($_POST['filter1'] == "2"){
        $sqlCommand = "SELECT incidentID FROM `incident` WHERE `iTypeID` = 2 AND `disasterName` LIKE '%$searchquery%'";
    }else if($_POST['filer1'] == "3"){
        $sqlCommand = "SELECT incidentID FROM `incident` WHERE `iTypeID` = 3 AND `disasterName` LIKE '%$searchquery%'";
    }else if($_POST['filter1'] == "4"){
        $sqlCommand = "SELECT incidentID FROM `incident` WHERE `iTypeID` = 2 AND `disasterName` LIKE '%$searchquery%'";
    }else if($_POST['filter1'] == "5"){
        $sqlCommand = "SELECT incidentID FROM `incident` WHERE `iTypeID` = 2 AND `disasterName` LIKE '%$searchquery%'";
    }else if($_POST['filter1'] == "6"){
        $sqlCommand = "SELECT incidentID FROM `incident` WHERE `iTypeID` = 2 AND `disasterName` LIKE '%$searchquery%'";
    }else if($_POST['filter1'] == "7"){
        $sqlCommand = "SELECT incidentID FROM `incident` WHERE `iTypeID` = 2 AND `disasterName` LIKE '%$searchquery%'";
    }
    $query = mysql_query($sqlCommand) or die(mysql_error());
    $count = mysql_num_rows($query);


    if($count >= 1){
        while($row = mysql_fetch_array($query)){
            $incidentID = $row["incidentID"];
            $dangerLevel =$row["dangerLevel"];
            $search_output .= "Item ID: <br> $incidentID <br> Danger Level: <br> $dangerLevel<br/> 
            <a href=\"modify_incident.php?id=" . $row['incidentID'] . "\">Modify Entry</a> 
            <span> </span>
            <a href=\"delete_incident.php?id=" . $row['incidentID'] . "\">Delete Entry</a> <br /><br />";           

        } // close while
    } else {


    }
}
?>

<html>
<head>
<body>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<fieldset>
<legend>Incident Search Form</legend>
<p><label>Search a Disaster (by name): <input name="searchquery" type="text"></label></p>
<p><label>Search by Type<select name="filter1"></label></p>
<option value="0">None</option>
<option value="1">Fire</option>
<option value="2">Flood</option>
<option value="3">Hurricane</option>
<option value="4">Tropical Storm</option>
<option value="5">LandSlide</option>
<option value="6">Biological Outbreak</option>
</select>
</fieldset>
<input name="myBtn" type="submit">
<br />
<br />
<div>
<?php echo $search_output; ?>
</div>
</form>     
</body> 
</head> 
</html>

搜索后修改数据文件）。 '\ connection.php';

    if(!isset($_POST['submit'])){
        $q = "SELECT * FROM incident WHERE incidentID = $_GET[id]";
        $ql = "SELECT * FROM location where locationID = $_GET[id]";
        $results = mysql_query($q);
        $incident = mysql_fetch_array($results);
        $results2 = mysql_query($ql);
        $incident2 = mysql_fetch_array($results2);  
    }
?>
</html>
<head>
<body>
<h1>You are Modifying an Incident</h1>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
    <fieldset>
    <legend>Incident</legend>
    <p><label>Disaster Name: <input type="text" name ="inputIncident" value = "<?php echo $incident['disasterName']; ?>" placeholder = "SampleTree Fire" /></label></p>
    <p><label>Disaster Description: <input type="text" name ="inputDescription" value = "<?php echo $incident['description']; ?>" placeholder = "Large Forest fire near"  /></label></p>
    <p><label>Time of Incident: <input type="time" name ="inputTime" value = "<?php echo $incident['time']; ?>" placeholder = "hh:mm:ss"/></label></p>
    <p><label>Date of Incident: <input type="date" name ="inputDate" value = "<?php echo $incident['date']; ?>" placeholder = "yyyy/mm/dd"/></label></p>
    <p><label>Danger of Incident: <input type="number" name ="inputdangerLevel" placeholder = "1-10" value = "<?php echo $incident['dangerLevel']; ?>" /></label></p>
    <p><label for ="type">Select Disaster Type:</label>
        <select id="type" name="type" value = "<?php echo $incident['iTypeID']; ?>"
        <option value="0">None</option>
        <option value="1">Fire</option>
        <option value="2">Flood</option>
        <option value="3">Hurricane</option>
        <option value="4">Tropical Storm</option>
        <option value="5">LandSlide</option>
        <option value="6">Biological Outbreak</option>
        </select>
    </fieldset>
    <fieldset>
    <legend>Location</legend>
    <p><label>Street Name:<input type="text" name ="inputStreet" value = "<?php echo $incident2['streetName']; ?>" placeholder = "Avalon Place" /></label></p>
    <p><label>Street Number:<input type="number" name ="inputNumber" value = "<?php echo $incident2['streetNumber']; ?>" placeholder = "9" /></label></p>
    <p><label>Suburb:<input type="text" name ="inputSuburb" value = "<?php echo $incident2['suburb']; ?>" placeholder = "Upper Kedron" /></label></p>
    <p><label>Postcode:<input type="text" name ="inputPostCode" value = "<?php echo $incident2['postCode']; ?>" placeholder = "4055" /></label></p>
    <p><label>Region:<input type="number" name ="inputRegion" value = "<?php echo $incident2['region']; ?>" placeholder = "4" /></label></p>
    <p><label>Lattitude:<input type="text" name ="inputLattitude" value = "<?php echo $incident2['mapLat']; ?>" placeholder = "136.10" /></label></p>
    <p><label>Longitude:<input type="text" name ="inputLongitude" value = "<?php echo $incident2['mapLon']; ?>" placeholder = "182.86" /></label></p>
    <p><label for ="state">State:</label>
        <select id="state" name="state" value = "<?php echo $incident2['state']; ?>">
        <option value="QLD">QLD</option>
        <option value="NSW">NSW</option>
        <option value="NT">NT</option>
        <option value="ACT">ACT</option>
        <option value="SA">SA</option>
        <option value="WA">WA</option>
        <option value="TAS">TAS</option>
        </select>
    </fieldset>
</p>



    <br/>
</fieldset>
    <input type="hidden" name="id" value="<?php echo $_GET['id'];?>"/>
    <!--<input type="hidden" name="id2" value="<?php echo $_GET['id'];?>"/>-->
    <input type="submit" name="submit" value="modify"/>
</form>
</body>
</head>
</html>
<?php
if(isset($_POST['submit'])){
    $u = "UPDATE incident SET `disasterName`='$_POST[inputIncident]', 
    `description`='$_POST[inputDescription]', 
    `time`='$_POST[inputTime]', 
    `date`='$_POST[inputDate]', 
    `dangerLevel`='$_POST[inputdangerLevel]',
    `iTypeID`='$_POST[type]' 
    WHERE incidentID = $_POST[id]";

    $ul = "UPDATE location SET `streetName`='$_POST[inputStreet]',
    `steetNumber`='$_POST[inputNumber]',
    `suburb`='$_POST[inputSuburb]',
    `postcode`='$_POST[inputPostCode]',
    `region`='$_POST[inputRegion]',
    `lattitude`='$_POST[inputLattitde]',
    `longitude`='$_POST[inputLongitude]',
    `state`='$_POST[state]'
    WHERE locationID = $_POST[id]";


    mysql_query($u) or die (mysql_error());
    mysql_query($ul) or die (mysql_error());

    echo "User has been modified!";
    header ('Location: output.php');
} else{
}
?>

Incident

Column  Type    Null    Default     Links to 
incidentID  int(15)     No                   
dangerLevel     int(2)  No                   
description     varchar(250)    No                   
time    time    No                   
date    date    No                   
isresolved  tinyint(1)  No                   
locationID  int(11)     No          location -> locationID           
isPublic    tinyint(1)  No                   
iTypeID     int(11)     No          itype -> iTypeID         
disasterName    text    No 

Location                 
Column  Type    Null    Default     
locationID  int(10)     No               
postCode    int(4)  No               
region  text    No               
state   text    No               
mapLat  float   No               
mapLon  float   No               
streetNumber    int(11) No               
streetName  text    No               
suburb  text    No

我想我可能会找到一种不同的方法来做这件事，但仍然需要一点点这样做，如何将其展开，以便分配$ row ['incidentID']和$ row ['locationID'] ID和ID2？

<a href=\"modify_incident.php?id=" . $row['incidentID'] . "\">Modify Entry</a>

Answer 1

如果这是一个1：M的关系（一个位置可能有很多事件），你想要将这些表连在一起：

从事件i中选择*，位置l，其中i.id =？和i.location_id = l.id

每一行都有来自事件和相应位置的列。

编辑：

您可以使用更新加入通过事件ID更新位置：

update location l
join incident i on i.location_id = l.id
set l.city = ?
where i.id = ?

（如果这是一个1：1的关系，每个事件都有一个独特的位置，你也可以将两个表合并为一个。）

来自两个表的$ _GET [ID]

1 个答案: