php 如何在php中提交表单之前在html表单的复选框中设置默认值
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How to set default value in checkbox of html form before submitted form in php
提问by Pabari Mohit
Form :
形式 ：
<tr>
<td>User Registration<input type="hidden" value="1" id="page[]" name="page[]"></td>
<td><input type="checkbox" id="admin[]" name="admin[]" value="1" ~~CHECKED-ADMIN1~~></td>
<td><input type="checkbox" id="staff[]" name="staff[]" value="1" ~~CHECKED-STAFF1~~></td>
<td><input type="checkbox" id="member[]" name="member[]" value="1" ~~CHECKED-MEMBER1~~></td>
</tr>
<tr>
<td>Member Registration<input type="hidden" value="2" id="page[]" name="page[]"></td>
<td><input type="checkbox" id="admin[]" name="admin[]" value="1" ~~CHECKED-ADMIN2~~></td>
<td><input type="checkbox" id="staff[]" name="staff[]" value="1" ~~CHECKED-STAFF2~~></td>
<td><input type="checkbox" id="member[]" name="member[]" value="1" ~~CHECKED-MEMBER2~~></td>
</tr>
Php Code:
代码：
$page = $_POST['page'];
$admin = $_POST['admin'];
$staff = $_POST['staff'];
$member =$_POST['member'];
Now how to put default checkbox value 0 beform submitting the form in php
现在如何在 php 中提交表单之前将默认复选框值设置为 0
回答by RJParikh
Use isset()function if you need to set checkbox post value.
isset()如果您需要设置复选框发布值，请使用函数。
$page = isset($_POST['page']) ? $_POST['page'] : array();
$admin= isset($_POST['admin']) ? $_POST['admin'] : array();
$staff = isset($_POST['staff ']) ? $_POST['staff '] : array();
$member = isset($_POST['member']) ? $_POST['member'] : array();
If you need to perform checkbox checked then use checkedkeyword.
如果您需要执行复选框检查然后使用checked关键字。
<input type="checkbox" id="admin[]" name="admin[]" value="1" checked></td>
回答by RiggsFolly
If you want to set a checkbox as checkedfrom PHP or any code this is the way to do it.
如果你想checked从 PHP 或任何代码中设置一个复选框，这就是这样做的方法。
<input checked="checked" type="checkbox" id="admin[]" name="admin[]" value="1"></td>
^^^^^^^^^^^^^^^^^
