php保存base64数据

php保存base64数据

if(isset($param['cover_pic']) && !empty($param['cover_pic'])) {
    if (preg_match('/^(data:\s*image\/(\w+);base64,)/', $param['cover_pic'], $result)){
        $file_path = '/upload/project/' . $param['id'] . date('YmdHis') . '.' . $result[2];
        if (file_put_contents('.' . $file_path, base64_decode(str_replace($result[1], '', $param['cover_pic'])))){
            $param['cover_pic'] = $file_path;
        }
    }
}

js闭包
var title = 'blog';
(function(title){
  $.post(url, {}, function(data){
    alert(title);//output single's blog, 我们期望的是输出 blog
  })
}(title))
title = "single's blog";
(function(title){
  $.post(url, {}, function(data){
    alert(title);//output single's blog
  })
}(title))
for(var i=0;i<3;i++)
{
   ((function(i){
        $.get('/?'+i, {}, function(data){
            alert(i); // alert(1) alert(2) alert(3)
        })
    }(i))
}