PHP脚本导致分段错误然后浏览器要求我下载.php文件中没有任何内容？

Question

我注意到我的一些PHP程序有一个不寻常的问题.有时,当访问profile.edit.php这样的页面时,浏览器会抛出一个对话框,要求下载profile.edit.php页面.当我下载它时,文件中没有任何内容.profile.edit.php应该是一个编辑用户信息的Web表单.

我在其他一些php页面上也注意到了这一点.我查看了我的apache错误日志,并且看到了分段错误消息:

[Mon Mar 08 15:40:10 2010] [notice] child pid 480 exit signal Segmentation fault (11)

此外,根据我部署应用程序的服务器,问题可能会出现也可能不会出现.

附加细节 这不会一直发生.它有时只会发生.例如,profile.edit.php将正确加载.但是只要我点击保存按钮(form action ="profile.edit.php？save = true"),页面就会要求我下载profile.edit.php.难道有时候我的php脚本会占用太多资源吗？

示例代码

保存操作后,我的profile.edit.php包含一个data_access_object.php文件.我在这里跟踪data_access_object.php中的代码到这一行

 if($params[$this->primaryKey])
 {
                        $q = "UPDATE $this->tableName SET ".implode(', ', $fields)." WHERE ".$this->primaryKey." = ?$this->primaryKey";
                        $this->bind($this->primaryKey, $params[$this->primaryKey], $this->tblFields[$this->primaryKey]['mysqlitype']);
}
 else
{
$q = "INSERT $this->tableName SET ".implode(', ', $fields);
}
// Code executes perfectly up to this point
// echo 'print this'; exit; // if i uncomment this line, profile.edit.php will actually show 'print this'.  If I leave it commented, the browser will ask me to download profile.edit.php
if(!$this->execute($q)){ $this->errorSave = -3; return false;}
// When I jumped into the function execute(), every line executed as expected, right up to the return statement.  

如果它有帮助,这里是data_access_object.php中的函数execute($ sql)

function execute($sql)
{

        // find all list types and explode them
        // eg. turn ?listId into ?listId0,?listId1,?listId2 
        $arrListParam = array_bubble_up('arrayName', $this->arrBind);

        foreach($arrListParam as $listName)
           if($listName)
           {
                $explodeParam = array();
                $arrList = $this->arrBind[$listName]['value'];
                foreach($arrList as $key=>$val)
                {
                        $newParamName = $listName.$key;
                        $this->bind($newParamName,$val,$this->arrBind[$listName]['type']);
                        $explodeParam[] = '?'.$newParamName;
                }
                $sql = str_replace("?$listName", implode(',',$explodeParam), $sql);
           }

        // replace all ?varName with ? for syntax compliance
        $sqlParsed = preg_replace('/\?[\w\d_\.]+/', '?', $sql);
        $this->stmt->prepare($sqlParsed);

        // grab all the parameters from the sql to create bind conditions
        preg_match_all('/\?[\w\d_\.]+/', $sql, $matches);
        $matches = $matches[0];

        // store bind conditions
        $types = ''; $params = array();
        foreach($matches as $paramName)
        {
                $types .= $this->arrBind[str_replace('?', '', $paramName)]['type'];
                $params[] = $this->arrBind[str_replace('?', '', $paramName)]['value'];
        }

        $input = array('types'=>$types) + $params;



        // bind it
        if(!empty($types))
        call_user_func_array(array($this->stmt, 'bind_param'), $input);

        $stat = $this->stmt->execute();
        if($GLOBALS['DEBUG_SQL'])
                echo '<p style="font-weight:bold;">SQL error after execution:</p> ' . $this->stmt->error.'<p>&nbsp;</p>';

        $this->arrBind = array();
        return $stat;
}

Answer 1

这可能是由于服务器配置不正确造成的。服务器直接发送文件，而不是将其解释为 PHP 程序。由于您使用的是 Apache，因此以下配置设置（来自此处）应该可以解决该问题：

<FilesMatch \.php$>
    SetHandler application/x-httpd-php
</FilesMatch>

编辑：似乎还有更深层次的问题。请参阅此答案和原始问题下的评论。