Question

我是新手。但是我想将选中的复选框值发送到其他页面。 Iam在下面的代码中说明了我的期望；

php_checkbox.php文件

<!DOCTYPE html>
<html>
<head>
<title>Get Values of Multiple Checked Checkboxes</title>
<link rel="stylesheet" href="css/php_checkbox.css" />
</head>
<body>
<div class="container">
<div class="main">
<center>
<h2>PHP: Get Values of Multiple Checked Checkboxes</h2>
<form action="checkbox_value.php" method="post">
<label class="heading">Select Your Technical Exposure:</label><p>
<input type="checkbox" name="check_list[]" 
value="C/C++"><label>C/C++       </label> <p>
<input type="checkbox" name="check_list[]" value="Java">    
<label>Java</label> <p>
<input type="checkbox" name="check_list[]" value="PHP"><label>PHP</label><p>
<input type="checkbox" name="check_list[]" 
value="HTML/CSS"><label>HTML/CSS</label><p>
<input type="checkbox" name="check_list[]" 
value="UNIX/LINUX"><label>UNIX/LINUX</label><p>
<input type="submit" name="submit" Value="Submit"/>
<p>
</form>
</div>
</div>
</body>
</html>

checkbox_value.php文件

<?php
if(isset($_POST['submit'])){
if(!empty($_POST['check_list'])) {
// Counting number of checked checkboxes.
$checked_count = count($_POST['check_list']);

foreach($_POST['check_list'] as $selected) {
echo "<p>".$selected ."</p>";}

for ($x = 1; $x <= $checked_count; $x++) {

?>


<!DOCTYPE html>
<html>
<head>
<style>
table, th, td {
border: 1px solid black;
border-collapse: collapse;
}
th, td {
padding: 5px;
text-align: left;    
}
</style>
</head>
<body>

<h2>Cell that spans two columns</h2>
<p>To make a cell span more than one column, use the colspan attribute.</p>

<table style="width:50%">
<tr>
<td>Technology</td>
<td><?php echo $selected; ?></td>
</tr>
</table>

<?php
} 
}
else{
}
}
?>

</body>
</html>

以上代码起作用。问题是当我选择Java和PHP时，两个表都显示了PHP。当我选择3个选项时，最后一个选项将显示在所有表中。我需要的是当我选择PHP，JAVA和UNIX / LINUX，三个选项（PHP，JAVA，UNIX / LINUX）分别显示在表上-PHP在第一个表上，Java在第二个表上，以及UNIX / LINUX在第三个表上。当我仅选择2（例如Java和PHP）时，我希望Java在第一个表上，而PHP在第二个表上。请帮忙。

Answer 1

您必须在循环内部编写行逻辑。

<!DOCTYPE html>
<html>
<head>
<style>
table, th, td {
border: 1px solid black;
border-collapse: collapse;
}
th, td {
padding: 5px;
text-align: left;    
}
</style>
</head>
<body>

<h2>Cell that spans two columns</h2>
<p>To make a cell span more than one column, use the colspan attribute.</p>

<table style="width:50%">
<?php
if(isset($_POST['submit'])){
if(!empty($_POST['check_list'])) {
// Counting number of checked checkboxes.
$checked_count = count($_POST['check_list']);

foreach($_POST['check_list'] as $selected) {
echo "<p>".$selected ."</p>";
?>


<tr>
<td>Technology</td>
<td><?php echo $selected; ?></td>
</tr>


<?php
}
}
else{
}
}
?>
</table>
</body>
</html>

Answer 2

签出下面的代码。您已经不需要使用foreach()循环来单独计算元素的数量。另外，只需循环table，而不是完整的HTML。

   <?php
     if(isset($_POST['submit'])){
     if(!empty($_POST['check_list'])) {
    //Counting number of checked checkboxes.
    //$checked_count = count($_POST['check_list']);
    ?>

    <!DOCTYPE html>
    <html>
    <head>
    <style>
    table, th, td {
        border: 1px solid black;
        border-collapse: collapse;
    }
    th, td {
        padding: 5px;
        text-align: left;
    }
    </style>
    </head>
    <body>
    <h2>Cell that spans two columns</h2>
    <p>To make a cell span more than one column, use the colspan attribute.</p>

    <?php

    foreach($_POST['check_list'] as $selected)
    {
    ?>
        <table style="width:50%">
          <tr>
            <td>Technology</td>
            <td><?php echo $selected; ?></td>
          </tr>
        </table>
    <?php
    } 
 }
}

?>
</body>
</html>

选定复选框的值到另一个页面

2 个答案: