如何在PHP中的以下场景中连接变量和字符串？ [英] How to concatenate variable and string in following scenario in PHP?

问题描述

以下是PHP代码：

I've following PHP code:

<?php
$rebate_no = 2;
echo "<table id='blacklistgrid_$rebate_no'  class='table table-bordered table-hover table-striped blacklistgrid'>
        <tr id='reb$rebate_no_1'>
          <td>
            <div class='btn-group'>
              <select name='product_id_$rebate_no[1]' id='product_id_$rebate_no_1' class='form-control prod_list'>
                <option value='1'>Alabama</option>
                <option value='2'>Alaska</option>
                <option value='3'>Arizona</option>
                <option value='4'>Arkansas</option>
                <option value='5'>California</option>
              </select>
            </div>
          </td>
        </tr>
      </table>";
?>

在上面的代码中，我在变量和字符串连接方面遇到问题：

In above code I'm having issues in concatenation of variable and string at following lines:

<tr id='reb$rebate_no_1'>
<select name='product_id_$rebate_no[1]' id='product_id_$rebate_no_1' class='form-control prod_list'>

我试过下面的技巧，但它对我没用。

I tried following trick but it didn't work for me.

<tr id='reb'.$rebate_no.'_1'>
<select name='product_id_$rebate_no[1]' id='product_id_'.$rebate_no.'_1' class='form-control prod_list'>

如果我检入HTML源代码，我会收到以下HTML代码：

If I check in HTML source I'm getting following HTML:

<tr id="reb" .2.'_1'="">
<select id="product_id_" class="form-control prod_list" .2.'_1'="" name="product_id_">

其实我想要HTML格式如下：

Actually I want the HTML in following desired format:

<tr id='reb2_1'>
<select name='product_id_2[1]' id='product_id_2_1' class='form-control prod_list'>

如何做到这一点？

推荐答案

字符串连接

String concatenation

<?php
$rebate_no = 2;
echo "<table id='blacklistgrid_".$rebate_no."'  class='table table-bordered table-hover table-striped blacklistgrid'>
        <tr id='reb".$rebate_no_1."'>
          <td>
            <div class='btn-group'>
              <select name='product_id_".$rebate_no[1]." id='product_id_".$rebate_no_1."' class='form-control prod_list'>
                <option value='1'>Alabama</option>
                <option value='2'>Alaska</option>
                <option value='3'>Arizona</option>
                <option value='4'>Arkansas</option>
                <option value='5'>California</option>
              </select>
            </div>
          </td>
        </tr>
      </table>";
?>

OR
如果您想使用Zend规范

OR If you want to use the Zend specification

<?php
    $rebate_no = 2;
    echo "<table id='blacklistgrid_{$rebate_no}'  class='table table-bordered table-hover table-striped blacklistgrid'>
            <tr id='reb{$rebate_no_1}'>
              <td>
                <div class='btn-group'>
                  <select name='product_id_{$rebate_no[1]} id='product_id_{$rebate_no_1}' class='form-control prod_list'>
                    <option value='1'>Alabama</option>
                    <option value='2'>Alaska</option>
                    <option value='3'>Arizona</option>
                    <option value='4'>Arkansas</option>
                    <option value='5'>California</option>
                  </select>
                </div>
              </td>
            </tr>
          </table>";
    ?>

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