Question

我使用ExtJS和PHP创建了一个搜索工具。 PHP文件是与数据库通信的服务器端脚本。在我的Linux环境中，它的工作完美无瑕。但是，由于我需要在Windows Server上安装此应用程序，因此我尝试将其复制到我的个人Windows XP中。

我安装了Apache，带有必要扩展的PHP和MySQL。登录屏幕加载和身份验证工作。通过身份验证后，应用程序会成功加载数据（数据是有关人员的信息; idcard等等。）

每当我尝试搜索时都会出现问题。当我在Linux环境中搜索时，它正在工作，现在Firebug向我显示以下错误：

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'am' in 'where clause'

我没有任何专栏'am'。与此类似的是NAME列。我试图从php文件中删除大量代码来解决问题，但一切都是徒劳的。

你知道为什么搜索不能用于Windowos但是它在Linux上工作吗？

以下是php文件的代码：

function regexp($search, $value) {
// case insensitive hard coded
return @preg_match("/$search/i", $value); 
}

function concat_ws() {
    $args = func_get_args();
    $sep = array_shift($args);
    return implode($sep, $args);
} // eo function concat_ws

 function quote_array(&$val, $key, $quot = '"') {
    $quot_right = array_key_exists(1, (array) $quot) ? $quot[1] : $quot[0];
    $val = is_null($val) ? "null" : $quot[0] . preg_replace("/'/", "''", $val) .    $quot_right;
}

class csql {

public function getLastTable() {

$sql  = "SELECT table_name, create_time FROM information_schema.TABLES WHERE table_schema = 'mydbname' ORDER BY CREATE_TIME desc LIMIT 1";

$ostmt = $this->odb->query($sql);
$tableArray = $ostmt->fetchAll(PDO::FETCH_OBJ);

$table = $tableArray[0]->table_name;

return $table;

}

// protected functions
protected function getOdb($engine) {
    switch($engine) {
        case "sqlite":
            if("/" !== $file[0]) {
                $file = realpath(".") . "/$file";
            }
            $odb = new PDO("sqlite:$file");
            $odb->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
            $odb->sqliteCreateFunction("regexp", "regexp", 2);
            $odb->sqliteCreateFunction("concat_ws", "concat_ws");
        break;

        case "mysql";
            $hostname = 'localhost';
            $username = 'myuser';
            $password = 'mypass';
            $odb = new PDO("mysql:host=$hostname;dbname=mydbname", $username, $password);
            $odb->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
        break;
    }

    return $odb;
} 

protected function getWhere($params) {

    $where = isset($where) ? "where $where" : "";

    $query = "";

    if($query && is_array($search) && sizeof($search)) {
        $a = array();
        foreach($search as $f) {
            $a[] = "$f regexp '$query'";
        }
        $where .= $where ? " and(" : "where (";
        $where .= implode(" or ", $a) . ")";
    }

    return $where;

} 

public function __construct($engine = "mysql") {
    $this->odb = $this->getOdb($engine);
} 

public function getCount($params) {

    // params to variables
    extract($params);

    $selectedFields = $_POST['fields'];

    $selectedFields = explode(",", $selectedFields);


    $count = 0;
    foreach ($selectedFields as $selectedField)
    {

        if ($count == 0)
        {
            $selectedField = substr_replace($selectedField, "", 0, 3);
            $selectedField= substr_replace($selectedField, "", -2);

            $selectedFields[0] = $selectedField;
        }

        else if ($count == count($selectedFields)-1)
        {
            $selectedField = substr_replace($selectedField, "", 0, 2);
            $selectedField = substr_replace($selectedField, "", -3);

            $selectedFields[count($selectedFields)-1] = $selectedField;
        }
        else
        {
            $selectedField = substr_replace($selectedField, "", 0, 2);
            $selectedField = substr_replace($selectedField, "", -2);

            $selectedFields[$count] = $selectedField;
        }

        $count++;
    }

    if ($count == 1)
    {
        $selectedFields[0] = substr_replace($selectedFields[0], "", -1);
    }

    if ($_POST['fields'] == "")
    {
        $like = "";
        foreach ($fields as $field)
        {
            $like = $like . $field . " LIKE '%" . $query . "%' or ";    

        }
        $like = substr_replace($like, "", -3);

    }
    else
    {
        $queryExploded = explode(" ", $query);

        $fullLike = "";

        foreach ($queryExploded as $explode)
        {
            foreach ($selectedFields as $selectedField)
            {
                $fullLike = $fullLike . " " . $selectedField . " LIKE '%" . $explode . "%' OR ";
            }

            $fullLike = substr_replace($fullLike, ") AND (", -3);

        }
        $fullLike = substr_replace($fullLike, "", -5);

    }

    $count = null;

    if ($_POST['fields'] == "")
    {
        $ostmt = $this->odb->prepare("select count(*) from {$params['table']} " . $this->getWhere($params));
    }
    else
    {
        $ostmt = $this->odb->prepare("select count(*) from {$params['table']} where (" . $fullLike . $this->getWhere($params));
    }

    $ostmt->bindColumn(1, $count);
    $ostmt->execute();
    $ostmt->fetch();
    return (int) $count;

} 

public function getData($params) {

    $fullLike = "";
    // params to variables
    extract($params);
    $selectedFields = $_POST['fields'];
    $selectedFields = explode(",", $selectedFields);

    $count = 0;
    foreach ($selectedFields as $selectedField)
    {

        if ($count == 0)
        {
            $selectedField = substr_replace($selectedField, "", 0, 3);
            $selectedField= substr_replace($selectedField, "", -2);

            $selectedFields[0] = $selectedField;
        }
        else if ($count == count($selectedFields)-1)
        {
            $selectedField = substr_replace($selectedField, "", 0, 2);
            $selectedField = substr_replace($selectedField, "", -3);

            $selectedFields[count($selectedFields)-1] = $selectedField;
        }
        else
        {
            $selectedField = substr_replace($selectedField, "", 0, 2);
            $selectedField = substr_replace($selectedField, "", -2);

            $selectedFields[$count] = $selectedField;
        }
        $count++;
    }

    if ($count == 1)
    {
        $selectedFields[0] = substr_replace($selectedFields[0], "", -1);
    }

    if ($_POST['fields'] == "")
    {
        $like = "";
        foreach ($fields as $field)
        {
            $like = $like . $field . " LIKE '%" . $query . "%' or ";    

        }
        $like = substr_replace($like, "", -3);  
    }
    else
    {
        $queryExploded = explode(" ", $query);

        $fullLike = "";

        foreach ($queryExploded as $explode)
        {
            foreach ($selectedFields as $selectedField)
            {
                $fullLike = $fullLike . " " . $selectedField . " LIKE '%" . $explode . "%' OR ";
            }

            $fullLike = substr_replace($fullLike, ") AND (", -3);

        }

        $fullLike = substr_replace($fullLike, "", -5);
    }

    $sql  = "select * ";
    //$sql .= implode(",", $fields);
    if ($fullLike == "")
    {
        $sql .= " from $table";
    }
    else
    {
        $sql .= " from $table where  (" . $fullLike . $this->getWhere($params);
    }
    $sql .= isset($groupBy) && $groupBy ? " group by $groupBy" : "";

    if(!is_null($sort)) {
        $sql .= " order by $sort";
        $sql .= is_null($dir) ? "" : " $dir";
    }
    if(!is_null($start) && !is_null($limit)) {
        $sql .= " limit $start,$limit";
    }


    $ostmt = $this->odb->query($sql);

    return $ostmt->fetchAll(PDO::FETCH_OBJ);

}

此代码是ExtJS的示例。我修改了很多。但是，我认为问题的根源来自getWhere函数。但是，我尝试删除它，代码仍然存在。

过去24小时我一直在努力解决这个问题。我找到的唯一“解决方案”是创建具有重复字段的数据库。原因如下：

当ExtJS表单首次加载时，列是正确的，即名称，idcard等...每当我开始搜索时，列名的第一个和最后一个字母消失，这意味着它们变成这样：am，dcar等等......

我所做的是为名称，身份证等创建复制列...命名为am，dcar等...

我知道这是很多重复的数据，但我不明白为什么这只发生在Windows上！太糟糕了！

非常感谢

Answer 1

进行一些代码隔离以缩小问题范围。

创建一个新的PHP文件。将仅搜索代码复制到其中。通过浏览器运行php文件（而不是extjs代码）。它会以同样的方式失败吗？

Answer 2

由于它适用于Linux而不适用于Windows，它是否可能是文件编码问题？服务器配置问题？ Windows和Linux都指向同一个数据库吗？

基于php的搜索工具，ExtJS在Windows环境中运行不佳

2 个答案: