php遍历读取文件夹/目录图片信息

<script>
$(function(){
    $.ajax({
        url: 'img.php',
        type: 'POST',
        dataType: 'JSON',
        data: {param1: 'value1'},
    })
    .done(function(data) {
        //console.log("success");
        for(attr in data) {
 
            $("body").append("<img" width=100% src="+ data[attr] +" />");
        }
    })
    .fail(function() {
        console.log("error");
    })
    .always(function() {
        console.log("complete");
    });
     
}) 
</script>

<?php
 
//1.遍历出所有html文件
$dir = './jquery/jquery/'; //文件目录、
 
$move_to = './jquery/jquery_new/';
 
foreach(glob($dir . '*.htm*') as $html)
{
    //读取文件
    $fp = fopen($html, 'a+');
    $html_string = fread($fp, filesize($html));
   
    //转码操作
    $html_string = str_replace('charset=gb2312', 'charset=UTF-8', $html_string);
   
    $file_code = mb_detect_encoding()($html_string, array('UTF-8','GBK','LATIN1','BIG5'));
   
    if($file_code = 'CP936')
    {
        $html_string = mb_convert_encoding($html_string ,'utf-8' , 'gbk');
    }
   
    //获取文件名
    $slice = explode('/', $html);
    $file_name = end($slice);
   
    //移到新文件
    file_put_contents($move_to . $file_name, $html_string);
   
    fclose($fp);
}
 
echo 'ok, 执行完成';

<?php
 
/**
 * 检测编码
 * string mb_detect_encoding ( string $str [, mixed $encoding_list = mb_detect_order() [, bool $strict = false ]] )
 *
 * @param $str 要检测的字符串
 * @param $encoding_list 检测编码的顺序
 * @param $strict 是否严格检测编码
 */
 
$str = 'http://www.111cn.net-PHP点点通';
echo $file_code = mb_detect_encoding($str, array('UTF-8','GBK','LATIN1','BIG5')); //UTF-8
 
/**
 * 转换编码
 * string mb_convert_encoding ( string $str , string $to_encoding [, mixed $from_encoding ] )
 *
 * @param $str 要转换的字符串
 * @param $to_encoding 转换后的字符串
 * @param $from_encoding
 */
 
echo mb_convert_encoding($str, 'GBK', 'UTF-8');