PHP向txt文件里面写入字符串，换行问题
<br />$DOCUMENTROOT = $_SERVER['DOCUMENT_ROOT'];<br /> $file = fopen("$DOCUMENTROOT/php_02/123.txt","wb");<br /> fwrite($file,"line 1 "."\n"." line 2 n line 3");<br /> fclose($file);<br /><br />$DOCUMENTROOT = $_SERVER['DOCUMENT_ROOT'];<br /> $file = fopen("$DOCUMENTROOT/php_02/123.txt","wb");<br /> fwrite($file,"line 1 "."\r\n"." line 2 n line 3");<br /> fclose($file);<br />
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