跳至
/*
* 高效率计算文件行数
* @author axiang
*/
function count_line($file){
$fp=fopen($file, "r");
$i=0;
while(!feof($fp)) {
//每次读取2M
if($data=fread($fp,1024*1024*2)){
//计算读取到的行数
$num=substr_count($data,"\n");
$i+=$num;
}
}
fclose($fp);
return $i;
}
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