用php如何获得当前目录的文件数?

Question

用目录函数现把当前目录下的文件都现读取出来，然后自己筛选吧http://www.php.net/manual/en/book.dir.php

Answer 1

$dir='./';
$specs=array('htm','html');
$num_files=$num_specs=0;
if($handle=@opendir($dir)){
while(false!==($file=readdir($handle))){
        if(is_file($file)){
$num_files++;
if(in_array(strtolower(substr($file,strrpos($file,".")+1)),$specs))
$num_specs++;
}
}
closedir($handle);
echo 'Directory: ',$dir,'<br/>';
echo 'Files: ',$num_files,'<br/>';
echo 'Specified Files: ',$num_specs;
}else echo 'Error: Cannot Open Directory ',$dir;