获取checkbox值的php代码

时间：2015-01-23 来源：西部数据作者：西部数据

由于checkbox特殊性所以我们要获取它的值,在很我语言中都不一样的,在php中我们是以数组形式来处理,并且利用遍历他的值,下面有大量实例.

<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>

handleformcheckbox.php

<html>

<head>

<title>checkbox demo</title>

</head>

<body>

<h3>demonstrates reading checkboxes</h3>

<?php

print <<<here

chkfries: $chkfries <br>

chksoda: $chksoda <br>

chkshake: $chkshake <br>

chkketchup: $chkketchup <br>

<hr>

here;

$total = 0;

if (!emptyempty($chkfries)){

  print ("you chose fries <br>");

  $total = $total + $chkfries;

}

if (!emptyempty($chksoda)){

  print ("you chose soda <br>");

  $total = $total + $chksoda;

}

if (!emptyempty($chkshake)){

  print ("you chose shake <br>");

  $total = $total + $chkshake;

}

if (!emptyempty($chkketchup)){

  print ("you chose ketchup <br>");

  $total = $total + $chkketchup;

}

print "the total cost is $$total";

?>

</body>

</html>

实例:

<html>

<head>

    <title>using default checkbox values</title>

</head>

<body>

<?php

$food = $_get[food];

$self = htmlentities($_server['php_self']);

if (!emptyempty($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.phpfensi.com

if (!emptyempty($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>