php断点续传之文件分割合并详解

php实现断点续传，就需要把大文件分割成多个小文件，然后单个上传。传完后在合并。

│ merge.php –合并文件脚本 │ merge.zip –合并后文件 │ socket.zip –需要分割的文件 │ split.php –分割文件脚本 │ └─split –分割后小文件目录

下面是源码

split.php

<?php

$fp = fopen("socket.zip", "rb");
$filesize = 10;
$i = 0;
$no = 1;
while(!feof($fp))
{
 $file = fread($fp, $filesize);

 $fp2 = fopen("./split/socket.port".sprintf("%04d",$no).".".$i."-".($i+$filesize).".tmp", "wb");
 fwrite($fp2, $file, $filesize);
 fclose($fp2);
 $i+=$filesize+1;
$no++;
}

fclose($fp);

merge.php

<?php
$filelist = glob('./split/*socket*.tmp');
$filesize = 10;

//print_r($filelist);
$mergeFileName = 'merg.zip';

unlink($mergeFileName);
 $fp2 = fopen($mergeFileName,"w+");
foreach($filelist as $k => $v)
{
 $fp = fopen($v, "rb");
 $content = fread($fp, $filesize);

 fwrite($fp2, $content, $filesize);
 unset($content);
 fclose($fp);
 echo $k,"\n";
}
 fclose($fp2);

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。