我有这样的代码:
<?php
$result = mysqli_query($con,"SELECT * FROM table");
while($row = mysqli_fetch_array($result)){
echo "<input type='"checkbox'" id='"$row[use_id]'" name='"things[]'" value='$row[col_id]' >$row[col]<br>";
echo "<input placeholder='"description'" type='"text'" name='"answers1'" class='$row[col_id]' id='"answerswer1'" style='display:none;'>";
echo "<align='left'><input placeholder='"source'" type='"text'" name='"answers2'" class='$row[use_id]' id='"answerswer2'" style='display:none;'>";
}
?>
<script>
$(document).ready(function(){
$("input[type=checkbox]").change(function(){
var divId = $(this).attr("id");
if ($(this).is(":checked")){
$("." + divId).show();
}
else{
$("." + divId).hide();
}
});
});
</script>
，我想使用THS代码从两个文本框中获取数据:
$checkBox = $_POST['things'];
for($i=0; $i<sizeof($checkBox); $i++){
$qs = "INSERT INTO sccm_reherb.table2 values('$_POST[id]','".$checkBox[$i]."','$_POST[ans1]','$_POST[ans2]')";
echo $qs;
mysqli_query($con,$qs) or die(mysqli_error($con));
}
但是'$_POST[ans1]'和'$_POST[ans2]'总是空的..有人能帮助我吗?提前感谢!
必须将ans1和ans2作为数组发送到服务器。不是字符串
将while循环更改为:
while($row = mysqli_fetch_array($result)) {
echo "<input type='checkbox' id='$row[use_id]' name='things[$row[col_id]]' value='$row[col_id]' >$row[col]<br>";
echo "<input placeholder='description' type='text' name='ans1[$row[col_id]]' class='$row[col_id]' id='answer1' style='display:none;'>";
echo "<align='left'><input placeholder='source' type='text' name='ans2[$row[col_id]]' class='$row[use_id]' id='answer2' style='display:none;'>";
}
- 注1:我使用单引号(
')在HTML属性更好的阅读。注意2:注意name='ans2[$row[col_id]]'(它现在是一个数组) - 注3:我通过
$row[col_id]手动设置数组索引
现在，如果你把这个表单发送到服务器，你会得到这样的结果:
Array
(
[things] => Array
(
[1] => 1
[4] => 4
)
[ans1] => Array
(
[1] => Description 1
[2] => forbidden data by user
[3] => forbidden data by user
[4] => Description 4
[5] => forbidden data by user
)
[ans2] => Array
(
[1] => Source 1
[2] => forbidden data by user
[3] => forbidden data by user
[4] => Source 4
[5] => forbidden data by user
)
)
在上面的数组中，所有文本框都有我在那里写的值forbidden data by user。这并不重要，因为有效的数据(用户已经选中了复选框)在things数组中，所以在服务器中，必须循环该数组。
$checkbox = $_POST['things'];
if ($checkbox) {
foreach ($checkbox as $id => $value) {
$ans1 = $_POST['ans1'][$id];
$ans2 = $_POST['ans2'][$id];
// to other stuff
}
}