处理HTML复选框及其值 [英] Process HTML checkboxes and their values

问题描述

如果只选中复选框，并且只抓取选中的复选框的值，我才能处理复选框。

How can I process the checkboxes only if they're checked and grab the value of the checked ones only.

php p>

php

if (is_array($_POST['add'])) {
  foreach ($_POST['add'] as $key => $value) {
    $_POST['add'][$key] = mysql_real_escape_string(stripslashes($value));
  }
}

html

<input type="checkbox" id="wmeet_ce" 
        value="ce" 
        name="add[wmeet]" 
        title="Wanting To Meet" 
        class="checkbox {validate:{required:true,minlength:1}}"/>

<input type="checkbox" id="wmeet_sf"
        value="sf" 
        name="add[wmeet]" 
        class="checkbox"/>

<input type="checkbox" id="wmeet_sm" 
        value="sm" 
        name="add[wmeet]" 
        class="checkbox" />

推荐答案

只有选中的复选框才会显示给PHP， PHP代码是正确的。

Only checked checkboxes are ever presented to PHP, so your PHP code is correct.

但是，您的HTML不正确，因为所有复选框都具有相同的名称。这意味着PHP只会看到其中的一个。

However, your HTML isn't correct, as all your checkboxes have the same name. This means PHP will only ever see one of them.

要获取一个复选框数组，您需要为这些复选框指定唯一的名称，例如

To get an array of checkboxes you either need to give your checkboxes unique names like this

<input type="checkbox" id="wmeet_ce" 
        value="ce" 
        name="add[ce]" 
        title="Wanting To Meet" 
        class="checkbox {validate:{required:true,minlength:1}}"/>

<input type="checkbox" id="wmeet_sf"
        value="sf" 
        name="add[sf]" 
        class="checkbox"/>

<input type="checkbox" id="wmeet_sm" 
        value="sm" 
        name="add[sm]" 
        class="checkbox" />

或使用类似这样的空方块技术。

Or use the empty box technique like this.

<input type="checkbox" id="wmeet_ce" 
        value="ce" 
        name="add[]" 
        title="Wanting To Meet" 
        class="checkbox {validate:{required:true,minlength:1}}"/>

<input type="checkbox" id="wmeet_sf"
        value="sf" 
        name="add[]" 
        class="checkbox"/>

<input type="checkbox" id="wmeet_sm" 
        value="sm" 
        name="add[]" 
        class="checkbox" />

这篇关于处理HTML复选框及其值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！