PHP chechbox 复选问题!!!

显示全部楼层 · 发表于 10-9-2007 03:34 PM

请问各位高手，当我选择多项checkbox时，我要如何写才能当我按“change”时，回到原本用户选择的选项，谢谢！

<?php session_start();
$_SESSION['Name'] = $_POST['Name'];
?>
<html>
<head>
<title>Testing</title>
<head>
<body>
<?php
if ($_POST['submit'] == 'submit')
{
$Name=$_POST['Name'];
if($_POST["hobby1"])
{ foreach($_POST['hobby1'] as $value)
{
$hobby2=join (', ', $_POST['hobby1']);
}
}
echo
("
Name: $Name<br>
Hobby: $hobby2<br>
");
echo
("<form name='frmtest' method = 'post' action='test.php'>
<input type = 'hidden' name = 'Name' value = '$Name'>
<br>
<input type = 'submit' name = 'change' value = 'Change' onclick='test.php'>
</form>");
exit;
}
?>
<form name="frmtest" method="post" action="test.php">
  <p>
<strong>Name:</strong>
<input type="text" name="Name" value="<?php echo $_SESSION['Name'] ?>">
<br>
<br>
<strong>Hobby:</strong><br>
  <input name="hobby1[]" type="checkbox" value="Gaming">
  Gaming
  <input name="hobby1[]" type="checkbox" value="Cooking" id="hobby1">
  Cooking
  <input name="hobby1[]" type="checkbox" value="Swimming">
  Swimming
  <br>
<br>
<input type="submit" name="submit" value="submit">
</form>
</body>
</html>

ikanyuchiew · 发表于 11-9-2007 10:11 AM

这是很粗造的做法，自己优化吧

<?php
session_start();
$_SESSION['Name'] = $_POST['Name'];
?>
<html>
<head>
<title>Testing</title>
<head>
<body>
<?php
if ($_POST['change'] == 'change') {
if (isset($_POST['Hobby']) && !empty($_POST['Hobby'])) {
//unserialize back
$hobby = stripslashes($_POST['Hobby']);
$hobby = unserialize($hobby);
//change key
//Gaming - 0
//Cooing - 1
//Swimming - 2
for($i=0;$i<3;$i++) {
if ($hobby[$i]=='Gaming') {
$temp = $hobby[$i];
$hobby[$i] = $hobby[0];
$hobby[0] = $temp;
}
if ($hobby[$i]=='Cooking') {
$temp = $hobby[$i];
$hobby[$i] = $hobby[1];
$hobby[1] = $temp;
}
if ($hobby[$i]=='Swimming') {
$temp = $hobby[$i];
$hobby[$i] = $hobby[2];
$hobby[2] = $temp;
}
}
foreach($hobby as $key => $val) {
if (empty($val)) {
unset($hobby[$key]);
}
}
print_r($hobby);
}
}
if ($_POST['submit'] == 'submit')
{
$Name=$_POST['Name'];
if($_POST["hobby1"])
{
foreach($_POST['hobby1'] as $value)
{
$hobby2=join (', ', $_POST['hobby1']);
}
$serializeHobbies = serialize($_POST["hobby1"]);
}
echo
("
Name: $Name<br>
Hobby: $hobby2<br>
");
echo
("<form name='frmtest' method = 'post' action='test.php'>
<input type = 'hidden' name = 'Name' value = '$Name'>
<input type = 'hidden' name = 'Hobby' value = '$serializeHobbies'>
<br>
<input type = 'submit' name = 'change' value = 'change'>
</form>");
exit;
}
?>
<form name="frmtest" method="post" action="test.php">
<p>
<strong>Name:</strong>
<input type="text" name="Name" value="<?php echo $_SESSION['Name'] ?>">
<br>
<br>
<strong>Hobby:</strong><br>
<input name="hobby1[]" type="checkbox" value="Gaming" <?php if (isset($hobby[0])) echo "checked"; ?>>
Gaming
<input name="hobby1[]" type="checkbox" value="Cooking" id="hobby1" <?php if (isset($hobby[1])) echo "checked"; ?>>
Cooking
<input name="hobby1[]" type="checkbox" value="Swimming" <?php if (isset($hobby[2])) echo "checked"; ?>>
Swimming
<br>
<br>
<input type="submit" name="submit" value="submit">
</form>
</body>
</html>

复制代码

显示全部楼层 · 发表于 11-9-2007 12:09 PM

真的非常谢谢您！

显示全部楼层 · 发表于 12-9-2007 01:03 AM

请问如果我想要hobby像Sex那样，当Name没输入时；错误讯息显示时，用户原来的选项还在，我要如何写呢？希望各位能够帮帮我，谢谢！

<?php
  session_start();
  $_SESSION['Name'] = $_POST['Name'];
  $_SESSION['sex'] = $_POST['sex'];
?>
<html>
<head>
<title>Testing</title>
<meta http-equiv="Content-Type" c>
<head>
<body>
<?php
if ($_POST['change'] == 'change') {
  if (isset($_POST['Hobby']) && !empty($_POST['Hobby'])) {
$hobby = stripslashes($_POST['Hobby']);
$hobby = unserialize($hobby);

for($i=0;$i<3;$i++) {
   if ($hobby[$i]=='Gaming') {
      $temp = $hobby[$i];
      $hobby[$i] = $hobby[0];
      $hobby[0] = $temp;
   }
   if ($hobby[$i]=='Cooking') {
      $temp = $hobby[$i];
      $hobby[$i] = $hobby[1];
      $hobby[1] = $temp;
   }
   if ($hobby[$i]=='Swimming') {
      $temp = $hobby[$i];
      $hobby[$i] = $hobby[2];
      $hobby[2] = $temp;
   }
}
foreach($hobby as $key => $val) {
   if (empty($val)) {
      unset($hobby[$key]);
   }
}
  }
}
if ($_POST['submit'] == 'submit')
{
if (($_POST["Name"]!="")&&($_POST["hobby1"]!="")&&($_POST["sex"]!=""))
  {
  $Name=$_POST['Name'];
  $sex=$_POST['sex'];

  if($_POST["hobby1"])
  {
   foreach($_POST['hobby1'] as $value)
   {
      $hobby2=join (', ', $_POST['hobby1']);
   }
   $serializeHobbies = serialize($_POST["hobby1"]);
  }

  echo
  ("  Name: $Name<br>
  Hobby: $hobby2<br>
  Sex: $sex<br>  ");
  echo
  ("<form name='frmtest' method = 'post' action='test.php'>
  <input type = 'hidden' name = 'Name' value = '$Name'>
<input type = 'hidden' name = 'sex' value = '$sex'>
  <input type = 'hidden' name = 'Hobby' value = '$serializeHobbies'>
  <br>
  <input type = 'submit' name = 'change' value = 'change'>
  </form>");
  exit;
}
else
{$error="Cannot Empty!!!";}
}
?>
<?php echo $error;?>
<form name="frmtest" method="post" action="test.php">
  <p>
<strong>Name:</strong>
<input type="text" name="Name" value="<?php echo $_SESSION['Name'] ?>">
<br>
<br>
<strong>Hobby:</strong><br>
  <input name="hobby1[]" type="checkbox" value="Gaming" <?php if (isset($hobby[0])) echo "checked"; ?>>
  Gaming
  <input name="hobby1[]" type="checkbox" value="Cooking" id="hobby1" <?php if (isset($hobby[1])) echo "checked"; ?>>
  Cooking
  <input name="hobby1[]" type="checkbox" value="Swimming" <?php if (isset($hobby[2])) echo "checked"; ?>>
  Swimming
  <p><strong>Sex:</strong><br>
   <input type="radio" name="sex" value="M"<?php echo (($_SESSION['sex'] == "M")?"CHECKED":""); ?>>
Male
   <input type="radio" name="sex" value="F"<?php echo (($_SESSION['sex'] == "F")?"CHECKED":""); ?>>
Female<br>
<br>
<input type="submit" name="submit" value="submit">
  </form>
</body>
</html>

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PHP chechbox 复选问题!!!

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