我正在制作一个带有多个单选按钮的调查表。问题在数据库中,我选择问题并将选项显示为单选按钮
<div id="question">
<form id="pollform">;
<?php
$i=0;
while(list($ID,$Question,$form,$one,$two,$three,$four,$five)=mysql_fetch_array($result)){
$i++;
?>
<p><?php echo $ID.") ".$Question; ?></p>
<input type="radio" name="radio<?php echo $i;?>" value="1" /> <?php echo $one; ?><br />
<input type="radio" name="radio<?php echo $i;?>" value="2" /> <?php echo $two; ?><br />
<input type="radio" name="radio<?php echo $i;?>" value="3" /> <?php echo $three; ?><br />
<input type="radio" name="radio<?php echo $i;?>" value="4" /> <?php echo $four; ?><br />
<input type="radio" name="radio<?php echo $i;?>" value="5" /> <?php echo $five; ?><br />
<?php
}
?>
<input type="button" id="review-submit" value="Submit" onclick="pollsubmit();">
<form>
</div>
为了处理这个问题并使用Ajax发送选定的答案,我使用了以下代码
<script language=Javascript>
function pollsubmit(){
<?php
$dbquerry="SELECT `ID`, `Question`, `Form`, `one`, `two`,`three`,`four`,`five` FROM `pollquestions` Order by `ID`";
$result=mysql_db_query($dbname,$dbquerry);
?>
var answers = new Array();
var form1=document.getElementById("pollform");
<?php
$count=0;
while(list($ID,$Question,$form,$one,$two,$three,$four,$five)=mysql_fetch_array($result)){
$count++;
?>
for (var i=1;i<=5;i++) {
if(form1.radio<?php echo $count;?>[i].checked) {
answers[<?echo $ID;?>]= form1.radio<?php echo $count;?>.value;
}
}
<?php
}
?>
}
</script>
但这给了我一个Cannot read property 'checked' of undefined
尽管在这两个地方的名字都是radio1。 而如果我只使用字符串,例如name="radio1"
它正在工作,但如果我使用name="radio<?php echo $i;?>"
它不起作用。你能帮忙吗
javascript for loop 应该从 0 开始。对于该值,您需要一个 [i]。
for (var i=0;i<5;i++) {
if(form1.radio<?php echo $count;?>[i].checked) {
answers[<?echo $ID;?>]= form1.radio<?php echo $count;?>.value;
}
}
<script language=Javascript>
function pollsubmit(){
<?php
$dbquerry="SELECT `ID`, `Question`, `Form`, `one`, `two`,`three`,`four`,`five` FROM `pollquestions` Order by `ID`";
$result=mysql_db_query($dbname,$dbquerry);
?>
var answers = new Array();
var form1=document.getElementById("pollform");
<?php
$count=0;
while(list($ID,$Question,$form,$one,$two,$three,$four,$five)=mysql_fetch_array($result)){
$count++;
?>
for (var i=1;i<=5;i++) {
if(form1.['radio<?php echo $count;?>'][i].checked) {
answers[<?echo $ID;?>]= form1.['radio<?php echo $count;?>'].value;
}
}
<?php
}
?>
}
</script>
编辑:
for (var i=1;i<=5;i++) {
if(form1.['radio<?php echo $count;?>'][i].checked) {
answers[<?echo $ID;?>]= form1.['radio<?php echo $count;?>'].value;
}
}