初学PHP：用post传递checkbox
书本的做法：user_info.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>vinson firt php</title>
<meta name="Generator" content="">
<meta name="Author" content="czh">
<meta name="Keywords" content="php date">
<meta name="Description" content="">
</head>
<style>
.body
font-size:10pt;
coclor:#000000;
}
</style>
<body class='body'>
<table border=0 cellspacing='0' cellpadding='0' class='body'>
<form name='php_test' method='post' action='./user_info.php'>
<tr height='21px'>
<td>
name:<input type="text" name='user_name' size='15'>
</td>
<td>
sex:
<select name='user_sex' style="width=100px">
<option value='0'>man</option>
<option value='1'>woman</option>
</select>
</td>
</tr>
<tr height='21px'>
<td>
Sports hobby:
<input type="checkbox" name='badminton' value="badminton">badminton
<input type="checkbox" name='basketball' value="basketball">basketball
</td>
<td>
<input type="checkbox" name='football' value="football">football
<input type="checkbox" name='vollyball' value="vollyball">vollyball
</td>
</tr>
<tr height='21px'>
<td>
</td>
<td>
<input type="submit" value="confirm">
</td>
</tr>
</form>
</table>
</body>
</html>
user_info.php
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>vinson firt php</title>
<meta name="Generator" content="">
<meta name="Author" content="czh">
<meta name="Keywords" content="php date">
<meta name="Description" content="">
</head>
<style>
.body
font-size:10pt;
coclor:#000000;
}
</style>
<body class='body'>
<?php
if($_POST)
$name=$_POST['user_name'];
if($_POST['user_sex']==0)
$sex="man";
else
$sex="woman";
$user_insterest="you like:";
if ($_POST['badminton'])
$user_insterest.=$_POST['badminton']."/";
if ($_POST['basketball'])
$user_insterest.=$_POST['basketball']."/";
if ($_POST['football'])
$user_insterest.=$_POST['football']."/";
if ($_POST['vollyball'])
$user_insterest.=$_POST['vollyball']."/";
$user_insterest=substr($user_insterest, 0,-1);
echo "your name:".$name."<br>";
echo "your sex:".$sex."<br>";
echo $user_insterest;
?>
</body>
</html>
这样做，如果哪个checkbox没有选上就报哪个错
4个复选框checkbox的name应该一样，并且以数组形式命名：
user_info.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>vinson firt php</title>
<meta name="Generator" content="">
<meta name="Author" content="czh">
<meta name="Keywords" content="php date">
<meta name="Description" content="">
</head>
<style>
.body
font-size:10pt;
coclor:#000000;
}
</style>
<body class='body'>
<table border=0 cellspacing='0' cellpadding='0' class='body'>
<form name='php_test' method='post' action='./user_info.php'>
<tr height='21px'>
<td>
name:<input type="text" name='user_name' size='15'>
</td>
<td>
sex:
<select name='user_sex' style="width=100px">
<option value='0'>man</option>
<option value='1'>woman</option>
</select>
</td>
</tr>
<tr height='21px'>
<td>
Sports hobby:
<input type="checkbox" name='Sportshobby[]' value="badminton">badminton
<input type="checkbox" name='Sportshobby[]' value="basketball">basketball
</td>
<td>
<input type="checkbox" name='Sportshobby[]' value="football">football
<input type="checkbox" name='Sportshobby[]' value="vollyball">vollyball
</td>
</tr>
<tr height='21px'>
<td>
</td>
<td>
<input type="submit" value="confirm">
</td>
</tr>
</form>
</table>
</body>
</html>
user_info.php
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>vinson firt php</title>
<meta name="Generator" content="">
<meta name="Author" content="czh">
<meta name="Keywords" content="php date">
<meta name="Description" content="">
</head>
<style>
.body
font-size:10pt;
coclor:#000000;
}
</style>
<body class='body'>
<?php
if($_POST)
$name=$_POST['user_name'];
if($_POST['user_sex']==0)
$sex="man";
else
$sex="woman";
$user_insterest="you like:";
if (isset($_POST['Sportshobby']))//判断元素是否存在
{
$v=$_POST['Sportshobby'];//這樣取到的是一個數組，4個checkbox的value
foreach ($v as $value)//再循環取出
{
$user_insterest.=$value."/";
}
}
$user_insterest=substr($user_insterest, 0,-1);
echo "your name:".$name."<br>";
echo "your sex:".$sex."<br>";
echo $user_insterest;
?>
</body>
</html>
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