php codeigniter中的嵌套for循环错误答案

【问题标题】：nested forloop error in php codeigniterphp codeigniter中的嵌套for循环错误
【发布时间】：2016-04-14 10:12:57
【问题描述】：

<?php foreach ($faq as $faq): ?>
    <div class="form-group firstedit">
        <label class="col-sm-2 control-label">Question : </label>
        <div class="col-sm-8">
            <input type="text" id="question" class="form-control remove_att" value="<?php echo $faq['faq_question'] ?>" placeholder="Enter the question" readonly="readonly" required="">
        </div>
        <div class="col-sm-8">
            <select data-plugin-selectTwo class="form-control populate" id="category" required="required">
                <?php foreach ($category as $category){ ?>
                    <option value="<?php echo $category['faq_category_id'] ?>"><?php echo $category['faq_category_name'] ?></option>
                <?php } ?>
            </select>
        </div>
        <div class="col-sm-2" class="edit_all">
            <button type="button" class="btn btn-warning btn-sm show_edit" data-toggle="tooltip" data-placement="bottom" title="Edit"><i class="fa fa-edit"></i></button>
            <button type="button" id="<?php echo $faq['faq_id'] ?>" class="btn btn-success btn-sm save_faq" data-toggle="tooltip" data-placement="bottom" title="Save" style="display: none"><i class="fa fa-floppy-o" ></i></button>
            <button  type="button"  class="btn btn-danger btn-sm delete_faq"  id="<?php echo $faq['faq_id'] ?>" data-toggle="tooltip" data-placement="bottom" title="Delete"><i class="fa fa-trash"></i>&nbsp;Delete</button>
        </div>
    </div>
    <div class="form-group answer">
        <label class="col-sm-2 control-label">Answer : </label>
        <div class="col-sm-8 edit_answer" >
            <textarea class="form-control remove_text" id="answer11" rows="5" placeholder="Type your answer..." required="required" readonly ><?php echo $faq['faq_answer'] ?></textarea>
        </div>
        <div class="col-sm-2">
            <?php if ($faq['faq_status'] == "pending") : ?>
                <button  type="button"  class="btn btn-danger btn-sm approve_faq"  id="<?php echo $faq['faq_id'] ?>" data-toggle="tooltip" data-placement="bottom" title="Approve FAQ's"><i class="fa fa-trash"></i>&nbsp;approve</button>
            <?php endif; ?>
        </div>
    </div>
<?php endforeach; ?>

我的控制器

public function not_approved() {
        $category_id = $this->input->post('category_id');
        $data['faq'] = $this->faq_model->not_approved($category_id);
         // get the faq category
        $data['category'] = $this->faq_model->get_category();
       // echo "<script>alert('adadsdsa')</script>";
        $this->load->view('faq/display_faq_not_approved', $data);
    }

我有常见问题解答的 for 循环，其中显示所有常见问题解答值，并且我有常见问题解答类别，但在单独的表中。

我想显示常见问题类别。上面我使用了嵌套的 for 循环，但以错误结束。

我想在 for 循环中显示嵌套的 for 循环以显示所有类别。如何实现这一点

【问题讨论】：

标签： php codeigniter foreach nested-loops

【解决方案1】：

你在用吗

<?php foreach ($faq as $faq): ?>

尝试使用其他键，例如

<?php foreach ($faq as $f): ?>

【讨论】：

【解决方案2】：

错误使用，键值不能相同。

<?php foreach ($faq as $faq): ?>
<?php foreach ($category as $category){ ?>

例如，

$arr = array(1, 2, 3, 4);

foreach ($arr as &$value) {
    $value = $value * 2;
}

http://php.net/manual/en/control-structures.foreach.php

【讨论】：

【解决方案3】：

试试

foreach ($faq as $intKey=>$strValue)

所以 $strValue 是你想要的元素

【讨论】：