我得到错误通知：我的代码php中的数组到字符串转换

Question

hi guys i got problem in my code i don't know where come form this my code

<h1><?php echo $item["title"]; ?> </h1>
       <table>
          <tr>
             <th>Catageory</th>
             <td><?php echo $item["category"]; ?></td>
         </tr> 
         <tr>
             <th>Genre</th>
             <td><?php echo $item["genre"]; ?></td>
         </tr> 
         <tr>
             <th>Format</th>
             <td><?php echo $item["format"]; ?></td>
         </tr> 
         <tr>
             <th>Year</th>
             <td><?php echo $item["year"]; ?></td>
         </tr> 
         <?php
         if(strtolower($item["category"]) == "books"){
             ?>
        <tr>
             <th>Authors</th>
             <td><?php echo $item["authors"]; ?></td>
         </tr> 

        <tr>
             <th>Publisher</th>
             <td><?php echo $item["publisher"]; ?></td>
         </tr> 
        <tr>
             <th>ISBN</th>
             <td><?php echo $item["isbn"]; ?></td>
         </tr>           

    <?php    }  ?>

And the error message,

and Iam sure all code are same i don't what's problem !!

Answer 1

my problem is solved

by replace

             <td><?php echo $item["authors"]; ?></td>

to

<td><?php echo implode(",", $item["authors"]); ?></td>