php批量清除空行（著作權登記源碼需要）

php讀取txt文件並分割行替換空字符串

$handler = opendir('zhuzhuoquan');//文件夾名
$ii=0;
$str = '';
while( ($filename = readdir($handler)) !== false ) 
{	
	if($filename =='.' || $filename=='..' || $filename=='views') continue;
	$ii++;
	//echo $ii.'. '.$filename.'<br>';

	$file_path = 'zhuzhuoquan/'.$filename;
	$str .=trim_file($file_path);
}
echo $str;


function trim_file($file_path)
{
	$file = fopen($file_path, "r");
	$user=array();
	$i=0;
	$str = '';
	//輸出文本中所有的行，直到文件結束爲止。
	while(! feof($file))
	{
		$row = fgets($file);
		$row = trim($row);
		if(!$row) continue;
		$row_first = substr($row, 0, 2);//  /* // * 
		$row_first1 = substr($row, 0, 7);//  defined
		if(in_array($row_first, array("/*", "//", "* ", "*/","<?"))) continue;
		if(in_array($row_first1, array("defined"))) continue;


		$row_first2 = substr($row, 0, 5);//  defined
		if(in_array($row_first2, array("class")))
		{
			$row = "/* End of class */ \r\n".$row;
		}

 
		$user[$i]= $row;//fgets()函數從文件指針中讀取一行
		$str	.= $row."\r\n";
		$i++;
	}
	fclose($file);
	$user=array_filter($user);
	//print_r($user);
	return $str;
}
exit;

$a			= "ss.txt";

$file = fopen($a, "r");
$ary=array();
$i=0;
$str = '';
//輸出文本中所有的行，直到文件結束爲止。
while(! feof($file))
{
	$row = fgets($file);
	$row = trim($row);
	if(!$row) continue;
	$ary[$i]= $row;//fgets()函數從文件指針中讀取一行
	$str	.= $row."\r\n";
	$i++;
}
fclose($file);
$ary=array_filter($ary);
echo $str;exit;
exit;