本文实例讲述了PHP大文件分块上传功能。分享给大家供大家参考，具体如下：
前端代码
使用file.slice将文件进行分割，然后分别进行异步上传。
<!DOCTYPE html>
<html lang=\"zh-cn\">
<head>
<meta charset=\"utf-8\">
<meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\">
<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">
<title><%= title %></title>
<!-- zui -->
<link rel=\"stylesheet\" href=\"http://zui.sexy/dist/css/zui.min.css\" rel=\"external nofollow\" >
</head>
<body>
<div class=\"container\" style=\"margin-top: 30px;\">
<form class=\"form-inline\" method=\"post\" enctype=\"multipart/form-data\">
<div class=\"form-group\">
<input type=\"file\" id=\"fileBig\" class=\"form-control\">
</div>
<button type=\"submit\" class=\"btn btn-primary\">提交</button>
</form>
</div>
<!-- ZUI Javascript 依赖 jQuery -->
<script src=\"http://zui.sexy/assets/jquery.js\"></script>
<!-- ZUI 标准版压缩后的 JavaScript 文件 -->
<script src=\"http://zui.sexy/dist/js/zui.min.js\"></script>
<script type=\"text/javascript\">
$(\'form\').submit(function() {
let file = $(\":file\")[0].files[0];
let fileName = file.name;
let fileSize = file.size;
console.log(\'fileSize\',fileSize);
let blockSize = 0.9*1024*1024;
let num = Math.ceil(fileSize/blockSize);
let start = 0;
let end = 0;
for(let i=1;i<=num;i++){
end = blockSize*i;
if(end > fileSize){
end = fileSize;
}
let block = file.slice(start,end);
start = end;
let fd = new FormData();
fd.append(\'block\',block);
fd.append(\'name\',fileName);
fd.append(\'total\',num);
fd.append(\'index\',i);
$.ajax({
url:\"upload.php\",
type:\"POST\",
data:fd,
async:true,
processData:false,
contentType:false,
success:(res)=>{
console.log(\'res_\'+i+\":\");
console.log(res);
}
})
}
return false;
});
</script>
</body>
</html>
后端代码
在所有的文件上传成功之后，合并生成原来的大文件
<?php
$name = $_POST[\'name\'];
$index = $_POST[\'index\'];
$total = $_POST[\'total\'];
echo \"name:\".$name.PHP_EOL;
echo \"index:\".$index.PHP_EOL;
echo \"total:\".$total.PHP_EOL;
move_uploaded_file($_FILES[\'block\'][\'tmp_name\'],\'upload/\'.$name.\"_\".$index);
$list = scandir(\'upload\');
$num = count($list)-2;
echo \"cur_num:\".$num.PHP_EOL;
if($num == $total){
echo \"upload done\".PHP_EOL;
echo $cmd = \"cat upload/\'{$name}_\'* > upload/\'{$name}\'\";
shell_exec($cmd);
}
更多关于PHP相关内容感兴趣的读者可查看本站专题：《php文件操作总结》、《PHP目录操作技巧汇总》、《PHP常用遍历算法与技巧总结》、《PHP数据结构与算法教程》、《php程序设计算法总结》及《PHP网络编程技巧总结》
希望本文所述对大家PHP程序设计有所帮助。
© 版权声明
THE END
暂无评论内容