简单的html5 File base64 图片上传

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title>简单的html5 File测试 for pic2base64</title> 
<style> 
</style> 
<script> 
window.onload = function(){ 
    var input = document.getElementById("demo_input"); 
    var result= document.getElementById("result"); 
    var img_area = document.getElementById("img_area"); 
    if ( typeof(FileReader) === 'undefined' ){
        result.innerHTML = "抱歉,你的浏览器不支持 FileReader,请使用现代浏览器操作!"; 
        input.setAttribute('disabled','disabled'); 
    }else{
        input.addEventListener('change',readFile,false);
    } 
}
function readFile(){
    var file = this.files[0]; 
    //这里我们判断下类型如果不是图片就返回 去掉就可以上传任意文件   
    if(!/image\/\w+/.test(file.type)){
        alert("请确保文件为图像类型"); 
        return false; 
    }
    var reader = new FileReader(); 
    reader.readAsDataURL(file); 
    console.log();
    reader.onload = function(e){ 
            result.innerHTML = this.result; 
            img_area.innerHTML = '<div class="sitetip">图片img标签展示:</div><img src="'+this.result+'" alt=""/>'; 
    }
} 
</script> 
</head>  
<body> 
    <form action="file.php" method="post">
<input type="file" value="sdgsdg" id="demo_input" /> 
<textarea name="img" id="result" rows=30 cols=300></textarea> 
<p id="img_area"></p> 
<input type="submit" value="提交">
</form>
</body> 
</html> 

服务器代码:

<?php 
$base64_url=$_POST['img'];
$base64_body = substr(strstr($base64_url,','),1);
$data= base64_decode($base64_body );
file_put_contents('1.jpg',$data);
//或$image = imagecreatefromstring($data);
 ?>

  

posted @ 2016-07-18 16:12  zhuzhipeng  阅读(11752)  评论(0编辑  收藏  举报