警告：explode（）期望参数2为字符串，给定[闭合]数组

问题描述：

The Script:

<?php

    $tqs = "SELECT * FROM `table_two`";
    $tqr = mysqli_query($dbc, $tqs);
    $row = mysqli_fetch_assoc($tqr);
    $thearray[] = $row['some_text_id'];

    // Prints e.g.: Array ( [0] => 164, 165, 166 )
    print_r($thearray);

    echo "<br/><br/>";
    echo "<br/><br/>";

    $thearray = explode(", ", $thearray);
    print_r($thearray);

?>

I have the following entry in one row of the column "some_text_id":

164, 165, 166

I am looking to "explode" this by the comma and have it stored in an array, so I can select the numbers individually, e.g.:

myarray[0], myarray[1], myarray[2]

Though I am getting the following error message:

Warning: explode() expects parameter 2 to be string, array given in ... (points to the explode function)

Any suggestions on how to do this?

脚本： p>

 ＆lt;？php 
 \  n $ tqs =“SELECT * FROM`table_two`”; 
 $ tqr = mysqli_query（$ dbc，$ tqs）; 
 $ row = mysqli_fetch_assoc（$ tqr）; 
 $ thearray [] = $ row ['some_text_id  ']; 
 
 //打印例如：数组（[0] =＆gt; 164,165,166）
 print_r（$ thearray）; 
 
 echo“＆lt; br /＆gt;＆lt; br /  ＆gt;“; 
 echo”＆lt; br /＆gt;＆lt; br /＆gt;“; 
 
 $ thearray = explode（”，“，$ thearray）; 
 print_r（$ thearray）; 
 \  n？＆gt; 
  code>  pre> 
 
 我在“some_text_id” em>列的一行中有以下条目： p> 
 \  n 
  164,165,166 
  code>  pre> 
 
 我希望用逗号“爆炸”这个并将它存储在一个数组中，所以我 可以单独选择数字，例如： p> 
 
 
  myarray [0]，myarray [1]，myarray [2] 
  code>  pre> 
 
  虽然我收到以下错误消息： p> 
 
 
 
 警告：explode（）期望参数2为字符串，数组以...给出（指向 EXPLO  de function） p> 
  blockquote> 
 
 
有关如何执行此操作的任何建议吗？ p> 
  div>

答

Skip the part where you put the database results into an array. It's completely unnecessary:

<?php

    $tqs = "SELECT * FROM `table_two`";
    $tqr = mysqli_query($dbc, $tqs);
    $row = mysqli_fetch_assoc($tqr);

    // Prints e.g.: 164, 165, 166
    print_r($row['some_text_id']);

    echo "<br/><br/>";
    echo "<br/><br/>";

    $thearray = explode(", ", $row['some_text_id']);
    print_r($thearray);

?>

警告：explode（）期望参数2为字符串，给定[闭合]数组

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