php - CodeIgniter 遇到 PHP 错误

Question

我收到此错误:

A PHP Error was encountered Severity: Warning Message: strip_tags() expects parameter 1 to be string, array given Filename: inscription/loginform3.php Line Number: 19

这是代码:

echo form_open_multipart('user/register_step_3');

// Loop through the POST variables passed from the previous page
foreach ($_POST as $key => $value){
  $value = htmlentities(stripslashes(strip_tags($value))); 
  echo form_hidden($key, $value);
}

第 19 行的代码:

$value = htmlentities(stripslashes(strip_tags($value))); 

请帮我解决这个问题。

Answer 1

请检查您的表单是否有任何以数组形式给出的输入标记 意思是:

<input type="checkbox" name="check[]" />

如果存在数组字段，您需要再使用一个内部循环，例如:

foreach ($_POST as $key => $value){
  if(is_array($value)){
    // Inner loop 
    foreach ($value as $k => $v){
       // Code
    }
  }else{
    $value = htmlentities(stripslashes(strip_tags($value))); 
    echo form_hidden($key, $value);
  }
}

否则请尝试以下代码:

foreach ($_POST as $key => $value){
  $val = htmlentities(stripslashes(strip_tags($_POST[$key]))); 
  echo form_hidden($key, $val);
}