XAMPP修改mysql的root密码phpmyadmin无法登陆

<?php
$json = '{"a":"中国人人"}';
var_dump(json_decode($json));
?>

结果

{"text":null,"status":1}

/*
    字符串GBK转码为UTF-8，数字转换为数字。
*/
function ct2($s){
    if(is_numeric($s)) {
        return intval($s);
    } else {
        return iconv("GBK","UTF-8",$s);
    }
}
/*
    批量处理gbk->utf-8
*/
function icon_to_utf8($s) {
  if(is_array($s)) {
    foreach($s as $key => $val) {
      $s[$key] = icon_to_utf8($val);
    }
  } else {
      $s = ct2($s);
  }
  return $s;
}
echo json_encode(icon_to_utf8("厦门"));

    $curl = curl_init();
    curl_setopt($curl, CURLOPT_URL, 'http://www.111cn.net');

    $curl = curl_init('http://www.111cn.net');

    $curl = curl_init();
    curl_setopt_array($curl, array(
    CURLOPT_RETURNTRANSFER => 1,
    CURLOPT_URL => 'http://www.111cn.net'
    ));

    $result = curl_exec($curl);

    // Get cURL resource
    $curl = curl_init();
    // Set some options - we are passing in a useragent too here
    curl_setopt_array($curl, array(
    CURLOPT_RETURNTRANSFER => 1,
    CURLOPT_URL => 'http://testcURL.com/?item1=value&item2=value2',
    CURLOPT_USERAGENT => 'Codular Sample cURL Request'
    ));
    // Send the request & save response to $resp
    $resp = curl_exec($curl);
    // Close request to clear up some resources
    curl_close($curl);

    // Get cURL resource
    $curl = curl_init();
    // Set some options - we are passing in a useragent too here
    curl_setopt_array($curl, array(
    CURLOPT_RETURNTRANSFER => 1,
    CURLOPT_URL => 'http://www.111cn.net',
    CURLOPT_USERAGENT => 'Codular Sample cURL Request',
    CURLOPT_POST => 1,
    CURLOPT_POSTFIELDS => array(
    item1 => 'value',
    item2 => 'value2'
    )
    ));
    // Send the request & save response to $resp
    $resp = curl_exec($curl);
    // Close request to clear up some resources
    curl_close($curl);

function _https_curl_post($url, $vars) 
{ 
    foreach($vars as $key=>$value)
    {
        $fields_string .= $key.'='.$value.'&' ;
    } 
    $fields_string = substr($fields_string,0,(strlen($fields_string)-1)) ;
    $ch = curl_init();  
    curl_setopt($ch, CURLOPT_URL,$url); 
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST,  2);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);  // this line makes it work under https
    curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
    curl_setopt($ch, CURLOPT_POST, count($vars) );
    curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string);     
    $data = curl_exec($ch);        
    curl_close($ch);  
       
    if ($data)
    {
        return $data;
    }
    else
    {
        return false;
    }
}

    if(!curl_exec($curl)){
    die('Error: "' . curl_error($curl) . '" - Code: ' . curl_errno($curl));
    }

<?php

define('NO_FILE', '不存在上传文件');
define('NOT_ALLOW_EXT', '文件类型不在允许范围内');
define('NOT_ALLOW_SIZE', '文件大小不在允许范围内');
define('HAS_THE_FILE', '该文件已经存在');
define('UPLOAD_FAILED', '上传失败');
define('UPLOAD_SUCCESS', '上传成功');

class file_uploader
{

    var $_file;
    var $_filesize;
    var $_fileext;
    var $_filedir;
    var $_filename;
    var $_filetmpname;
   
    var $allowsize;
    var $allowext;
   
    var $neednewname;
    var $newname;
    var $syslang;
   
    var $report;
   
    function ready($filedir = '', $file, $allowsize = '', $allowext = '', $neednewname = false, $report = 0){
        $this->_filedir = is_dir($filedir) ? $filedir : '';
        if(empty($file) || !isset($file['size']) || $file['size'] == 0) $this->error(NO_FILE);
        $this->_filesize = $file['size'];
        $this->_filename = $file['name'];
        $this->_filetmpname = $file['tmp_name'];
       
        $this->allowsize = $allowsize;
        $this->allowext = $allowext;
       
        $this->neednewname = ($neednewname) ? true : false;
        $this->newname = '';
       
        $this->report = $report;
    }
   
    function do_upload(){
        if(!is_uploaded_file($this->_filetmpname)) $this->error(NO_FILE);
        if($this->chk_ext()){
            $this->error(NOT_ALLOW_EXT);
            return '';
        }
        if($this->chk_size()){
            $this->error(NOT_ALLOW_SIZE);
            return '';
        }
        if($this->neednewname) $this->newname = $this->generate_name().".".$this->get_fileext();
        if($this->chk_hasfile()){
            $this->error(HAS_THE_FILE);
            return '';
        }
        $filename = empty($this->newname) ? @iconv('utf-8','gb2312',$this->_filename) : $this->newname;
        @chmod($this->_filedir.$filename, 0777);
        if(move_uploaded_file($this->_filetmpname, $this->_filedir.$filename)){
            return $this->result();
        }else{
            $this->error(UPLOAD_FAILED);
            return '';
        }
    }
   
    function chk_ext(){
        if(empty($this->allowext) || in_array($this->get_fileext(), explode("|",$this->allowext))) return false;
        return true;
    }
   
    function chk_size(){
        if(empty($this->allowsize) || get_filesize <= $this->allowsize*1024*1024) return false;
        return true;
    }
   
    function get_filesize(){
        return $this->_filesize;
    }
   
    function get_fileext(){
        return substr($this->_filename,strrpos($this->_filename,".")+1);
    }
   
    function generate_name(){
        return substr(md5(time()),26);
    }
   
    function chk_hasfile(){
        return is_file($this->_filedir.$this->_filename);
    }
   
    function error($tip){
        echo $tip;
    }
   
    function result(){
        if($this->report){
            $filename = empty($this->newname) ? $this->_filename : $this->newname;
            $arr = array('filename' => $filename, 'filesize' => $this->_filesize, 'tip' => UPLOAD_SUCCESS);
            return $arr;
        }else{
            return UPLOAD_SUCCESS;
        }
    }
}

/***使用方法与参数说明***/
/***
    第一个参数$dir 为上传文件存放的路径
    第二个参数为$_FILES 为你那个上传文件变量
    第三个参数允许文件大小 单位为MB
    第四个参数允许的文件类型 格式为jpg|png|gif
    第五个参数是否需要生成新的文件名
    第六个参数为返回的提示格式 0为直接提示上传正确 1则返回一个数组array('filename' => $filename, 'filesize' => $this->_filesize, 'tip' => UPLOAD_SUCCESS);
***/

//require("类文件");
//$u = new file_uploader;
//$u->ready($dir, $_FILES['upload_file'], false, false, true, 0);
//echo $u->do_upload();

?>

    $dir = 'upload/';
    require("upload_class.php");
    $u = new file_uploader;
    $u->ready($dir, $_FILES['upload_file'], false, false, true, 0);
    echo $u->do_upload();