Question

我有以下数组，我想将它们中的每一个转换为单独的字符串。换句话说，将阵列分成几个部分。

  $formatsArray = $_POST['formats'];
      $topicsArray = $_POST['topics'];

这是因为我想在以下查询中包含单个字符串＆＃34;

  $resources = "select * from resources where
                    stage LIKE '%".$stage."%'
                    AND format LIKE '%".$formats."%'";


      $run_query = mysqli_query($con, $resources);

这是因为格式需要一个单独的字符串进行比较，比如让我们假设数组是["video", "blogs", "articles"]，如果要将格式与video,blogs,articles进行比较，它就不会起作用，而是视频，博客或文章。

我希望这是明确的，如有任何澄清，请提供建议。

一切顺利，

更新

$formats = explode(',', $formatsArray);
      $topics = explode(',', $topicsArray);


      $resources = "select * from resources where
                    stage LIKE '%".$stage."%'
                    AND format LIKE '%".$formats."%' AND topic LIKE '%".$topics."%' ";

更新

$run_query = mysqli_query($con, $resources);


  while($row = mysqli_fetch_array($run_query)) {

    $data[] = array(
      'format' => $row['format'],
      'title' => $row['title'],
      'costs' => $row['cost'],
      'stage' => $row['stage'],
      'topic' => $row['topic'],
      'link' => $row['link']
    );
  }

更新

  include('db.php');


  $query = 'select * from resources where ';
  $query .= 'stage LIKE :stage and';
  $execute[':stage'] = '%' . $stage . '%';
  if(!empty($_POST['formats'])){
  foreach($_POST['formats'] as $key => $format) {
      $query .= 'format LIKE :format' . $key . ' and ';
      $execute[':format' . $key] = '%' . trim($format) . '%';
  }
  }
  if(!empty($_POST['topics'])){
  foreach($_POST['topics'] as $key => $topic) {
      $query .= 'topic LIKE :topic' . $key . ' and ';
      $execute[':topic' . $key] = '%' . trim($topic)  . '%';
  }
  }
  $query = rtrim($query, ' and ');
  if(!empty($execute)) {
      $stmt = $con->prepare($query);
      $stmt->execute($execute);
  } else {
      echo 'You must search for something';
  }


      while($row = mysqli_fetch_array($query)) {

        $data[] = array(
          'format' => $row['format'],
          'title' => $row['title'],
          'costs' => $row['cost'],
          'stage' => $row['stage'],
          'topic' => $row['topic'],
          'link' => $row['link']
        );
      }

Answer 1

无视准备好的陈述的必要性，你可以这样做：

  $formats = implode('","', $formatsArray);
  $topics = implode('","', $topicsArray);

  $resources = "select * from resources where
                stage LIKE '%".$stage."%'
                AND format IN(".$formats.") AND topic IN(\"".$topics."\") ";

当你"每个数组时，在每个,之前和之后添加implode，你的数组就会变得如此。

video","blogs","articles

因此，我们需要将"添加到每个IN列表的开头和结尾。这将使最终查询如下：

select * from resources where
stage LIKE '%".$stage."%'
AND format IN("video","blogs","articles") AND ...

Answer 2

我认为这样做会。这也将通过使用准备好的陈述解决注入漏洞。

$query = 'select * from resources where ';
if(!empty($_POST['formats'])){ 
foreach($_POST['formats'] as $key => $format) {
    $query .= 'stage LIKE :stage' . $key . ' or ';
    $execute[':stage' . $key] = '%' . trim($format) . '%';
}
}
if(!empty($_POST['topics'])){
foreach($_POST['topics'] as $key => $topic) {
    $query .= 'topic LIKE :topic' . $key . ' or ';
    $execute[':topic' . $key] = '%' . trim($topic)  . '%';
}
}
$query = rtrim($query, ' or ');
if(!empty($execute)) {
    echo $query;
    print_r($execute);
    //$stmt = $mysqli->prepare($query);
    //$stmt->execute($execute);
} else {
    echo 'You must search for something';
}

为您提供

的查询

select * from stage LIKE：stage0或stage LIKE：stage1或topic LIKE：topic0或topic LIKE：topic1或topic LIKE：topic2或topic LIKE：topic3

和绑定值：

Array
(
    [:stage0] => %test%
    [:stage1] => %test1%
    [:topic0] => %value1%
    [:topic1] => %value2%
    [:topic2] => %value3%
    [:topic3] => %value4%
)

这是我认为数据配对时的初始代码。

foreach($formats as $key => $format) {
    $topic = $topics[$key];
    $query .= '(stage LIKE :stage' . $key . ' and topic LIKE :topic' . $key . ') or ';
    $execute[':stage' . $key] = '%' . trim($format) . '%';
    $execute[':topic' . $key] = '%' . trim($topic)  . '%';
}

准备好的陈述的一些链接：
http://php.net/manual/en/mysqli.quickstart.prepared-statements.php
http://php.net/manual/en/mysqli.prepare.php
http://php.net/manual/en/mysqli-stmt.execute.php

将数组转换为单个字符串

2 个答案: