<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<title>PHP 输入框获取单选框的值</title>
<script src="jquery-1.10.1.min.js"></script>
</head>
<body>
<table>
<?php $cont ='ccc'?>
<tr>
<td>显示内容</td>
<td><input type="text" id="cont" value="<?php echo $cont; ?>"></td>
</tr>
<tr>
<td>单选框</td>
<td>
<?php
$arr = array('aaa','bbb','ccc','ddd');
$setChecked = '';
for($i=0;$i<count($arr);$i++){
$arr[$i]==$cont?$setChecked='checked="checked"':$setChecked='';
echo '<input type="radio" value="'.$arr[$i].'" name="setCont" class="setCont" '.$setChecked.'>'.$arr[$i].' ';
}
?>
</td>
</tr>
</table>
<script>
$(function(){
$(".setCont").click(function(){
var val=$('input:radio[name="setCont"]:checked').val();
$("#cont").val(val);
});
});
</script>
</body>
</html>
效果图：