我为当地的钓鱼俱乐部准备了一个“渔获量报告”表格,目前用户一次只能提交一个渔获量,因此经常不得不多次返回该表格来报告一天的渔获量。
我正在尝试对其进行调整,以使“物种”列表变为多选选择框。
每个catch必须在数据库中成为自己的行。
这是面向用户的表单,我已从“选择”更改为“选择多个”:
.loader:after {
content: "Ładowanie...";
position: fixed;
width: 100%;
top: 50%;
left: 0;
z-index: 1001;
color:white;
text-align:center;
font-weight:bold;
font-size:1.5rem;
}
.loader:before {
content: '';
background: #000000cc;
position: fixed;
width: 100%;
height: 100%;
top: 0;
left: 0;
z-index: 1000;
}
然后是addspecies.php的相关部分:
<form action="addspecies.php" method="post" enctype="multipart/form-data">
<input type="hidden" name="datecaught" id="todayDate"/>
<script type="text/javascript">
function getDate()
{
var today = new Date();
var dd = today.getDate();
var mm = today.getMonth()+1; //January is 0!
var yyyy = today.getFullYear();
if(dd<10){dd='0'+dd} if(mm<10){mm='0'+mm}
today = yyyy+""+mm+""+dd;
document.getElementById("todayDate").value = today;
}
//call getDate() when loading the page
getDate();
</script>
<!--Date caught: <input type="date" name="datecaught"><p>-->
<table width="600" cellpadding="5">
<tr>
<td>Boat Name:</td>
<td>
<select name="boatname">
<option value = "">---Select---</option>
<?php
$queryusers = "SELECT BoatName FROM SpeciesHuntBoats WHERE CatchYear2=$year ORDER BY BoatName ASC";
$db = mysqli_query($db, $queryusers);
while ( $d=mysqli_fetch_assoc($db)) {
echo "<option value='".$d['BoatName']."'>".$d['BoatName']."</option>";
}
?>
</select>
</td>
</tr>
<tr>
<td>Species:</td>
<td>
<select name="species" multiple size="5">
<option value = "">---Select---</option><br>
<?php
$queryspecies = "Select Species from SpeciesHuntSpecies ORDER BY Species ASC";
$db2 = mysqli_query($db2, $queryspecies);
while ( $s=mysqli_fetch_assoc($db2)) {
echo "<option value='".$s['Species']."'>".$s['Species']."</option>";
}
?>
</select>
</td>
</tr>
<tr><td>Angler's Name:</td><td><input type="text" name="angler" size="40"></td></tr>
<tr><td>Notes:</td><td><textarea rows="2" cols="40" name="notes"></textarea></td></tr>
<tr>
<td>Photo (optional):</td>
<td><input type="file" name="file"></td>
</tr>
<tr><td></td><td><input type="submit" value="Submit"></td></tr></table>
</form>
我将如何做到这样,以便用户可以选择4个物种,并且仅提交一次,但是在数据库中创建4个单独的条目?
答案 0 :(得分:2)
多项选择应具有数组样式名称:
<select name="species[]" multiple size="5">
然后在PHP中,$_POST['species']
将是一个包含所有选择的数组。您可以遍历数组并插入每个数组。
foreach ($species as $s) {
$query_rsCatch = "INSERT INTO SpeciesHunt
(DateCaught, CatchYear, BoatName, BoatMake, Species, Angler, Skipper, Notes, PhotoName, Photo)
VALUES('$datecaught','$year','$boatname','$boatmake','$s','$angler','$skipper','$notes','$imagename','$imagetmp')";
$rsCatch = mysql_query($query_rsCatch, $webdb) or die(mysql_error());
}
您还应该停止使用mysql_*
函数。它们在很多年前就已被弃用,最后在PHP 7中被完全删除。转换为PDO或mysqli,还学会使用准备好的语句来防止SQL注入。