php开发中如何获取、显示checkbox值的代码实例

xinxuaw231 · 发表于 2015-8-29 11:26:33

php开发中如何获取、显示checkbox值的代码实例
　　<html>
<head>
<title>checkbox demo</title>
</head>
<body>
<h1>checkbox demo</h1>
　　<h3>demonstrates checkboxes</h3>
<form action ="handleformcheckbox.php">
　　<ul>
  <li><input type ="checkbox" name ="chkfries" value ="11.00">fries</li>
  <li><input type ="checkbox" name ="chksoda"  value ="12.85">soda</li>
  <li><input type ="checkbox" name ="chkshake" value ="1.30">shake</li>
  <li><input type ="checkbox" name ="chkketchup" value =".05">ketchup</li>
</ul>
<input type ="submit">
</form>
　　</body>
</html>
　　

　　实例
　　<html>
<head>
<title>using default checkbox values</title>
</head>
<body>
<?php
$food = $_get[food];
$self = htmlentities($_server['php_self']);
if (!empty($food)) {
echo "the foods selected are:<br />";
foreach($food as $foodstuf)
{
      echo "<strong>".htmlentities($foodstuf)."</strong><br />";
}
}
else
{
echo ("<form action="$self" ");
echo ('method="get">
<fieldset>
      <label>italian <input type="checkbox" name="food[]" value="italian" />
</label>
      <label>mexican <input type="checkbox" name="food[]" value="mexican" />
</label>
      <label>chinese <input type="checkbox" name="food[]" value="chinese"
      checked="checked" /></label>
</fieldset>
<input type="submit" value="go!" >');
}
?>
</body>
</html>
　　
多选checkbox
　　<?php
$options = array('option 1', 'option 2', 'option 3');
　　$valid = true;
if (is_array($_get['input'])) {
$valid = true;
foreach($_get['input'] as $input) {
      if (!in_array($input, $options)) {
         $valid = false;
      }
}
if ($valid) {
      //process input
}
}
?>
　　实例checkbox多值获取
　　<html>
<head>
<title>using default checkbox values</title>
</head>
<body>
<?php
$food = $_get["food"];//www.3ppt.com
if (!empty($food)){
echo "the foods selected are: <strong>";
foreach($food as $foodstuff){
      echo '<br />'.htmlentities($foodstuff);
}
echo "</strong>.";
}
else {
echo ('
<form action="'. htmlentities($_server["php_self"]).'" method="get">
      <fieldset>
         <label>
            italian
            <input type="checkbox" name="food[]" value="italian" />
         </label>
         <label>
            mexican
            <input type="checkbox" name="food[]" value="mexican" />
         </label>
         <label>
            chinese
            <input type="checkbox" name="food[]" value="chinese" checked="checked" />
         </label>
      </fieldset>
      <input type="submit" value="go!" />
</form> ');
}
?>
</body>
</html>

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