Question

我的网站有一个小搜索脚本，我使用utf-8字符集。现在在我的mysql数据库中，我使用latin1_swedish_ci字符集。当我想搜索具有字母å，ä或ö的东西时，它不会返回任何结果，因为在数据库中字母å=Ã¥，ä=Ã¤和ö=Ã¶。

此问题的解决方案是告诉搜索脚本将这些字母替换为数据库理解的字母。

因此，当我的用户搜索其中包含字母å的内容时，应将其转换为Ã¥并返回正确的结果。

知道如何实现这个目标吗？

提前致谢

编辑：
添加了我试图修改的脚本，但没有运气有关如何修改它以便它“转换”charset的任何想法：

<?php  


// file for database connection
include('inc/db.inc.php');

// configuration file
include('inc/config.inc.php');

if(isset($_GET['p'])) {
  $page_number = $_GET['p'];
  $arraySearch = $_GET['terms'];
  $show_count = $_GET['count'];
  settype($page_number, 'integer');
}
$nospaces = substr($_GET['terms'],0,4);
  $offset = ($page_number - 1) * $records_number;
// check for an empty string and display a message.
if ($_GET['terms'] == "") {
  echo  '<div id="counter">ex. write &acute;here and&acute; or &acute;search&acute; without quotes.</div>';
// minim 3 characters condition
  } else if(strlen($_GET['terms']) < $limitchar) {
 echo '<div id="counter">'. $limitchar .' characters minimum</div>';
// no spaces in first 4 letters
  } else if(preg_replace('/[a-zA-Z0-9]/', '', $nospaces))  {
 echo '<div id="counter">Please use letters or numbers in first 4 characters</div>';
  } else  {

// explode search words into an array
  $arraySearch = explode(" ", $_GET['terms']);
// table fields to search
  $arrayFields = array(0 => $first_field, 1 => $second_field);
  $countSearch = count($arraySearch);
  $a = 0;
  $b = 0;
  $query = "SELECT * FROM $table_name WHERE (";
  $countFields = count($arrayFields);
  while ($a < $countFields)
  {
    while ($b < $countSearch)
    {
      $query = $query."$arrayFields[$a] LIKE '%$arraySearch[$b]%'";
      $b++;
      if ($b < $countSearch)
      {
        $query = $query." AND ";
      }
    }
    $b = 0;
    $a++;
    if ($a < $countFields)
    {
      $query = $query.") OR (";
    }
  }
  $query = $query.") LIMIT $offset, $records_number;";
  $search = mysql_query($query);


// get number of search results
  $arrayFields = array(0 => $first_field, 1 => $second_field);
  $countSearch = count($arraySearch);
  $a = 0;
  $b = 0;
  $query = "SELECT * FROM $table_name WHERE (";
  $countFields = count($arrayFields);
  while ($a < $countFields)
  {
    while ($b < $countSearch)
    {
      $query = $query."$arrayFields[$a] LIKE '%$arraySearch[$b]%'";
      $b++;
      if ($b < $countSearch)
      {
        $query = $query." AND ";
      }
    }
    $b = 0;
    $a++;
    if ($a < $countFields)
    {
      $query = $query.") OR (";
    }
  }
  $query = $query.")";
  $count_results = mysql_query($query);
  $numrows = mysql_num_rows($count_results);

// no results
if($numrows == 0) {
        echo '<div id="counter">No results found</div>';

// show results
} else {

echo '<div id="results">
<div id="results_top"><p><b>'. $_GET['terms'] .'</b> - '. $numrows .' results found</p></div>
';

while($row = mysql_fetch_assoc($search)) {

$urltitle = str_replace(" ","_", $row['title']);

echo '<div class="item">
<div class="details"><a href="http://www.onlinegamez.net/'.$urltitle.'-'.$row['id'].'.html" style="float:left;"><img src="http://www.onlinegamez.net/files/image/'.$row['icon'].'" width="90" height="65" alt="'.$row['title'].'"/></a><a href="http://www.onlinegamez.net/'.$urltitle.'-'.$row['id'].'.html" class="title">'.$row['title'].'</a><br />
'.$row['description'].'</div>
<div class="played"><span>'.$row['timesplayed'].'</span>
<p>played</p></div>
<div style="clear:both;"></div></div>'; 
}
// pagination
  $maxPage = ceil($numrows/$records_number);

  $nav = '';
for($page = 1; $page <= $maxPage; $page++) {
  if ($page == $page_number)     {
     $nav .= "$page";
  }
  else
  {
      $nav .= "<a href=\"javascript:htmlData('search.php','terms=".$_GET['terms']."&amp;p=$page')\">$page</a>";
  }
}

if ($page_number > 1) {

  $page = $page_number - 1;
  $prev = "<a href=\"javascript:htmlData('search.php','terms=".$_GET['terms']."&amp;p=$page')\">&laquo;</a>";

  $first = "<a href=\"javascript:htmlData('search.php','terms=".$_GET['terms']."&amp;p=1')\">First</a>";
}
else {
  $prev = '';
  $first = '';
}

if ($page_number < $maxPage) {
  $page = $page_number + 1;
  $next = "<a href=\"javascript:htmlData('search.php','terms=".$_GET['terms']."&amp;p=$page')\">&raquo;</a>";

  $last = "<a href=\"javascript:htmlData('search.php','terms=".$_GET['terms']."&amp;p=$maxPage')\">Last</a>";
}
else {
  $next = '';
  $last = '';
}
  echo $data;
echo "<div id=\"results_bottom\"><p>$first $prev $nav $next $last</p></div>
</div>";
    }
 }
?>

Answer 1

首先 - 你为什么要使用不同的字符集？

有几种方法可以解决您的问题，您可以更改连接上的字符集;

set names 'utf8';
set character set 'utf8' collate 'utf8_swedish_ci';

您可以进行基于整理的匹配;

select
    `field`
from
    `table`
where
    cast(`field` as char character set 'utf8') collate 'utf8_swedish_ci' = '$PHP_VARIABLE'

或者您可以在PHP中更改变量的字符集;

$var_in_iso88591 = utf8_decode($var_in_utf8);

查看utf8_encode() / utf8_decode()和iconv()

使用不同的字符集搜索数据库

1 个答案: