PHP batch converts html into txt files

function html2text($str){ $str = preg_replace("/ /is", "", $str); $str = preg_replace("/ /is", "", $str); $str = preg_replace("/n|r/", "", $str);// First replace all line breaks in the text with empty spaces to avoid conflicts when replacing line breaks below $str = preg_replace("/ /i", "n", $str); $str = preg_replace ("/

/i", "nn", $str); $str = preg_replace("/ /i", "n", $str); $str = preg_replace("/ /i", "n", $str); $str = preg_replace("/ /i", "n", $str); $ str = preg_replace("/ /i", "n", $str); $str = preg_replace("/ /i", " ", $str); $str = preg_replace ("/&/i", "&", $str); $str = preg_replace("/ $str = preg_replace("/> /i", ">", $str); $str = preg_replace("/"/i", '"', $str); $str = preg_replace("/“/i", ' "', $str); $str = preg_replace("/”/i", '"', $str); $str = preg_replace("/‘/i", "'", $str) ; $str = preg_replace("/’/i", "'", $str); $str = preg_replace("/—/i", '—', $str); $str = preg_replace ("/…/i", '…', $str); $str = preg_replace("/…/i", '·', $str); $str = preg_replace("/×/ i", '×', $str); //If you have special needs, please continue to add html special symbols and converted symbols below this line according to the above format $str = strip_tags($str);//Remove Null characters, html and php tags $str = html_entity_decode($str, ent_quotes, $encode);//Decode double and single quotes' $str = preg_replace("/.*?;/i", " ", $str); //Replace all special characters starting with and ending with return $str; } ?> Copy code Step 2: Copy all html files in the folder Convert to txt file

//Directory to be read $folder='e:apmservwwwhtdocstoolhtml-to-txtfiles'; //Open directory $fp=opendir($folder); // Read directory while (($file = readdir($fp)) !== false){ $filetype = substr ( $file, strripos ( $file, "." ) + 1 ); $filename=substr($ file,0,strrpos($file,'.')); if($file!='.' &&$file!='..'&&$filetype == "html"){ echo $filename.' '; $content=file_get_contents("$folder/$file"); //Open the file $op = fopen("$folder/$filename.txt", 'a'); //Write the file fwrite($op,html2text($content)); //Close the file fclose($op); //Delete the html file unlink("$folder/$file"); } } //Close the directory closedir($fp); ?> Copy code Additional knowledge points: Tips on converting html to txt Replace with a newline. If is already at the end of the line, then replacing with n will result in 2 newlines, which means there will be an empty line. But we hope that when appears, it will only be a new line, and only when

appears, it will be an empty line. What should we do? In fact, as long as there is one more step before the replacement, replace both n and r with empty, that is, replace n|r with empty, and then replace the html tags, these problems will not occur. Some people may ask, why do we need to replace both n and r? n represents line feed, r represents carriage return. Both forms may exist in txt text. This is what I have summarized in my work, and it is definitely not wrong! The knowledge points mentioned in this case have been integrated into this case, so there is no need to worry about any problems when replacing txt with html.