filename = $filePath;
}
private function read_doc() {
$fileHandle = fopen($this->filename, "r");
$line = @fread($fileHandle, filesize($this->filename));
$lines = explode(chr(0x0D),$line);
$outtext = "";
foreach($lines as $thisline)
{
$pos = strpos($thisline, chr(0x00));
if (($pos !== FALSE)||(strlen($thisline)==0))
{
} else {
$outtext .= $thisline." ";
}
}
$outtext = preg_replace("/[^a-zA-Z0-9\s\,\.\-\n\r\t@\/\_\(\)]/","",$outtext);
return $outtext;
}
private function read_docx(){
$striped_content = '';
$content = '';
$zip = zip_open($this->filename);
if (!$zip || is_numeric($zip)) return false;
while ($zip_entry = zip_read($zip)) {
if (zip_entry_open($zip, $zip_entry) == FALSE) continue;
if (zip_entry_name($zip_entry) != "word/document.xml") continue;
$content .= zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
zip_entry_close($zip_entry);
}// end while
zip_close($zip);
$content = str_replace('</w:r></w:p></w:tc><w:tc>', " ", $content);
$content = str_replace('</w:r></w:p>', "\r\n", $content);
$striped_content = strip_tags($content);
return $striped_content;
}
/************************excel sheet************************************/
function xlsx_to_text($input_file){
$xml_filename = "xl/sharedStrings.xml"; //content file name
$zip_handle = new ZipArchive;
$output_text = "";
if(true === $zip_handle->open($input_file)){
if(($xml_index = $zip_handle->locateName($xml_filename)) !== false){
$xml_datas = $zip_handle->getFromIndex($xml_index);
$xml_handle = DOMDocument::loadXML($xml_datas, LIBXML_NOENT | LIBXML_XINCLUDE | LIBXML_NOERROR | LIBXML_NOWARNING);
$output_text = strip_tags($xml_handle->saveXML());
}else{
$output_text .="";
}
$zip_handle->close();
}else{
$output_text .="";
}
return $output_text;
}
/*************************power point files*****************************/
function pptx_to_text($input_file){
$zip_handle = new ZipArchive;
$output_text = "";
if(true === $zip_handle->open($input_file)){
$slide_number = 1; //loop through slide files
while(($xml_index = $zip_handle->locateName("ppt/slides/slide".$slide_number.".xml")) !== false){
$xml_datas = $zip_handle->getFromIndex($xml_index);
$xml_handle = DOMDocument::loadXML($xml_datas, LIBXML_NOENT | LIBXML_XINCLUDE | LIBXML_NOERROR | LIBXML_NOWARNING);
$output_text .= strip_tags($xml_handle->saveXML());
$slide_number++;
}
if($slide_number == 1){
$output_text .="";
}
$zip_handle->close();
}else{
$output_text .="";
}
return $output_text;
}
public function convertToText($the_extension) {
if(isset($this->filename) && !file_exists($this->filename)) {
return "File Not exists";
}
$fileArray = pathinfo($this->filename);
if(array_key_exists('extension',$fileArray))
$file_ext = $fileArray['extension'];
else
$file_ext = "";
if($file_ext == "doc" || $file_ext == "docx" || $file_ext == "xlsx" || $file_ext == "pptx")
{
if($file_ext == "doc") {
return $this->read_doc();
} elseif($file_ext == "docx") {
return $this->read_docx();
} elseif($file_ext == "xlsx") {
return $this->xlsx_to_text($this->filename);
}elseif($file_ext == "pptx") {
return $this->pptx_to_text($this->filename);
}
}
else if($the_extension == "doc" || $the_extension == "docx" || $the_extension == "xlsx" || $the_extension == "pptx")
{
if($the_extension == "doc") {
return $this->read_doc();
} elseif($the_extension == "docx") {
return $this->read_docx();
} elseif($the_extension == "xlsx") {
return $this->xlsx_to_text($this->filename);
}elseif($the_extension == "pptx") {
return $this->pptx_to_text($this->filename);
}
}
}
}
?>