分割代码
split.php
<?php
$i = 0; //分割的块编号
$fp = fopen("hadoop.sql","rb"); //要分割的文件
$file = fopen("split_hash.txt","a"); //记录分割的信息的文本文件，实际生产环境存在redis更合适
while(!feof($fp)){
$handle = fopen("hadoop.{$i}.sql","wb");
fwrite($handle,fread($fp,5242880));//切割的块大小 5m
fwrite($file,"hadoop.{$i}.sql\r\n");
fclose($handle);
unset($handle);
$i++;
}
fclose ($fp);
fclose ($file);
echo "ok";
合并代码
merge.php
<?php
$hash = file_get_contents("split_hash.txt"); //读取分割文件的信息
$list = explode("\r\n",$hash);
$fp = fopen("hadoop2.sql","ab"); //合并后的文件名
foreach($list as $value){
if(!empty($value)) {
$handle = fopen($value,"rb");
fwrite($fp,fread($handle,filesize($value)));
fclose($handle);
unset($handle);
}
}
fclose($fp);
echo "ok";
