如何使用PHP post方法提交复选框值

Question

<input type="checkbox" class='form' name="checkbox_1" />

<input type="checkbox" class='form' name="checkbox_2" />

<input type="checkbox" class='form' name="checkbox_3" />

.........

<input type="checkbox" class='form' name="checkbox_10" />

已使用“POST”方法提交了from。确定哪个复选框并按递增顺序写出它们的数字。用空格（而不是新行）分隔所有数字，不要使用任何HTML格式。

对于Eg：

如果选中复选框3,5和10。

输出将是：

3 5 10

Answer 1

将标记更改为类似的内容

<input type="checkbox" class='form' value="1" name="checkbox[]" />
<input type="checkbox" class='form' value="2"  name="checkbox[]" />
<input type="checkbox" class='form' value="3"  name="checkbox[]" />

并获取提交的值，使用一个简单的循环

foreach($_POST['checkbox'] as $checkbox){
    echo $checkbox . ' ';
}

Answer 2

HTML代码::

  <input type="checkbox" name="arrayValue[]"  value="value1" > value1 <br />
  <input type="checkbox" name="arrayValue[]"  value="value2" > value2 <br />
  <input type="checkbox" name="arrayValue[]"  value="value3" > value3 <br />
  <input type="checkbox" name="arrayValue[]"  value="value4" > value4 <br />

php代码::

 $checkBoxValue = join(", ", $_POST['arrayValue']);  // here first (,) is user-define
                                                   // means, you can change it whatever
                                                // you want, even if it can be (space) or others

现在你在一个变量中获得'checkbox'的全部值

Answer 3

迭代$_POST数组并使用preg_match()取出数字，如果它以“checkbox_”开头：

$checked = array();
foreach ($_POST as $k => $v) {
  if (preg_match('|^checkbox_(\d+)$!', $k, $matches) {
    $checked[] = $matches[1];
  }
}
echo implode(' ', $matches);

Answer 4

<?php
$checked = array();

foreach ($_POST as $k => $v) {
$subject = $k;
$pattern = '/^checkbox_(\d+)$/';
  if (preg_match($pattern, $subject, $matches)) 
  {
    $checked[] = $matches[1];
  }
}

asort($checked);

foreach ($checked as $key=>$value)
echo $value .' ';
?>

Answer 5

对于每个Checkbox值检索，您可以使用以下方法从复选框中获取值是否已选中....

在我的表格页面（周一至周日）

 <input type="checkbox" name="checked[]" class="onoffswitch-checkbox" id="mononoffswitch" value="Mon" checked>

在我的PHP代码中

function IsChecked($chkname,$value)
{
    if(!empty($_POST[$chkname]))
    {
        foreach($_POST[$chkname] as $chkval)
        {
            if($chkval == $value)
            {
                return true;
            }
        }
    }
    return false;
}

if(IsChecked('checked','Mon'))
{
    $checkedMon = "Y";

}else {
    $checkedMon = "N";

}

if(IsChecked('checked','Tue'))
{
    $checkedTue = "Y";

}else {
    $checkedTue = "N";

}

if(IsChecked('checked','Wed'))
{
    $checkedWed = "Y";

}else {
    $checkedWed = "N";

}

if(IsChecked('checked','Thur'))
{
    $checkedThur = "Y";

}else {
    $checkedThur = "N";

}

if(IsChecked('checked','Fri'))
{
    $checkedFri = "Y";

}else {
    $checkedFri = "N";

}

if(IsChecked('checked','Sat'))
{
    $checkedSat = "Y";

}else {
    $checkedSat = "N";

}

if(IsChecked('checked','Sun'))
{
    $checkedSun = "Y";

}else {
    $checkedSun = "N";

}

现在您可以获取这些变量值，并可以使用您的Insert Into语句...

像这样

$addweekdays = mysqli_query($conn, "INSERT INTO weekdays(id,monday,tuesday,wednesday,thursday,friday,saturday,sunday) VALUES('$Id', '$checkedMon', '$checkedTue', '$checkedWed', '$checkedThur','$checkedFri','$checkedSat','$checkedSun')") ...

Answer 6

$checked = array();

foreach ($_POST as $k => $v) {
$subject = $k;
$pattern = '/^checkbox_(\d+)$/';
  if (preg_match($pattern, $subject, $matches)) 
  {
    $checked[] = $matches[1];
  }
}

asort($checked);

foreach ($checked as $key=>$value)
echo $value .' ';

Answer 7

将一个数组作为name="checkbox[]"的复选框名称，并为所有复选框使用相同的名称。提交表单后，使用以下代码接收选中复选框的值：

<?php
$chk="";
foreach($_POST['checkbox'] as $checkbox)
{
$chk=$chk.$checkbox;
}
echo $chk;
?>