note 74186 added to ref.pdf

I've improved the codesnipped for the pdf2txt version 1.2.
Now its possible the translate pdf version >1.2 into
plain text.

Sven

<?php
// Function    : pdf2txt()
// Arguments   : $filename - Filename of the PDF you want to
extract
// Description : Reads a pdf file, extracts data streams,
and manages
//               their translation to plain text - returning
the plain
//               text at the end
// Authors      : Jonathan Beckett, 2005-05-02
//							: Sven Schuberth, 2007-03-29

function pdf2txt($filename){

	$data = getFileData($filename);
	
	$s=strpos($data,"%")+1;
	
	$version=substr($data,$s,strpos($data,"%",$s)-1);

	if(substr_count($version,"PDF-1.2")==0)
		return handleV3($data);
	else
		return handleV2($data);

	
}
// handles the verson 1.2
function handleV2($data){
		
	// grab objects and then grab their contents (chunks)
	$a_obj =
getDataArray($data,"obj","endobj");
	
	foreach($a_obj as $obj){
		
		$a_filter =
getDataArray($obj,"<<",">>")
;
	
		if (is_array($a_filter)){
			$j++;
			$a_chunks[$j]["filter"] = $a_filter[0];

			$a_data =
getDataArray($obj,"streamrn","endstream&quo
t;);
			if (is_array($a_data)){
				$a_chunks[$j]["data"] = substr($a_data[0],
strlen("streamrn"),
strlen($a_data[0])-strlen("streamrn")-strlen(&qu
ot;endstream"));
			}
		}
	}

	// decode the chunks
	foreach($a_chunks as $chunk){

		// look at each chunk and decide how to decode it - by
looking at the contents of the filter
		$a_filter =
split("/",$chunk["filter"]);
		
		if ($chunk["data"]!=""){
			// look at the filter to find out which encoding has been
used			
			if
(substr($chunk["filter"],"FlateDecode")!
==false){
				$data = gzuncompress($chunk["data"]);
				if (trim($data)!=""){
					$result_data .= ps2txt($data);
				} else {
				
					//$result_data .= "x";
				}
			}
		}
	}
	
	return $result_data;
}

//handles versions >1.2
function handleV3($data){
	// grab objects and then grab their contents (chunks)
	$a_obj =
getDataArray($data,"obj","endobj");
	$result_data="";
	foreach($a_obj as $obj){
		//check if it a string
		if(substr_count($obj,"/GS1")>0){
			//the strings are between ( and )
			preg_match_all("|((.*?))|",$obj,$field,PREG_S
ET_ORDER);
			if(is_array($field))
				foreach($field as $data)
					$result_data.=$data[1];
		}
	}
	return $result_data;
}

function ps2txt($ps_data){
	$result = "";
	$a_data =
getDataArray($ps_data,"[","]");
	if (is_array($a_data)){
		foreach ($a_data as $ps_text){
			$a_text =
getDataArray($ps_text,"(",")");
			if (is_array($a_text)){
				foreach ($a_text as $text){
					$result .= substr($text,1,strlen($text)-2);
				}
			}
		}
	} else {
		// the data may just be in raw format (outside of []
tags)
		$a_text =
getDataArray($ps_data,"(",")");
		if (is_array($a_text)){
			foreach ($a_text as $text){
				$result .= substr($text,1,strlen($text)-2);
			}
		}
	}
	return $result;
}

function getFileData($filename){
	$handle = fopen($filename,"rb");
	$data = fread($handle, filesize($filename));
	fclose($handle);
	return $data;
}

function getDataArray($data,$start_word,$end_word){

	$start = 0;
	$end = 0;
	unset($a_result);
	
	while ($start!==false && $end!==false){
		$start = strpos($data,$start_word,$end);
		if ($start!==false){
			$end = strpos($data,$end_word,$start);
			if ($end!==false){
				// data is between start and end
				$a_result[] =
substr($data,$start,$end-$start+strlen($end_word));
			}
		}
	}
	return $a_result;
}
?>
----
Server IP: 217.160.72.57
Probable Submitter: 217.194.34.103
----
Manual Page -- http://www.p
hp.net/manual/en/ref.pdf.php
Edit        -- https://master
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Del: integrated  -- h
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Del: useless     -- http
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Del: bad code    -- htt
ps://master.php.net/note/delete/74186/bad+code
Del: spam        -- https:/
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Del: non-english -- 
https://master.php.net/note/delete/74186/non-english
Del: in docs     -- http
s://master.php.net/note/delete/74186/in+docs
Del: other reasons-- https://mast
er.php.net/note/delete/74186
Reject      -- https://mast
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