Read file in sections

You will probably be better off using file_get_contents. This reads a file into a string more efficiently than fread and also allows offsets so you can read the file in chunks.


http://uk3.php.net/manual/en/function.file-get-contents.php

Good afternoon,
Ok, so I wrote a simple code, to basically read a file in chunks:-

	$strFile = "c:\\myFile.doc";
	
	$bufferSize = 25000;
	
	$rndFileID = rndID();
	
	$newFileSize = filesize($strFile);
	
	if ($newFileSize % $bufferSize > 0)
		{
		$newFileSegments = $newFileSize /$bufferSize
		}
	else
		{
		$newFileSegments = ($newFileSize /$bufferSize) + 1
		}
	
	for (x=1;x<$newFileSegments;x++)
		{
		$data = file_get_contents($strFile, ,null ,x*$bufferSize, $bufferSize);
		$file_put_contents ('c:\\copiedFile.doc', $data, FILE_APPEND);
		}
	

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But the file is corrupt when

Uhh, couple of thoughts.  File_Get_Contents() will read the entire file into memory, so this may not be what you want if you are getting "out of memory" conditions.

The function rndid() on line 5 does not exist so we do not know what it might be doing.  It appears to create a variable that is never used.  Might want to leave that out.

Conceptually it is much easier to count the lines in a file, versus counting the bytes.  So you might want to try something like this:

fopen()
$num = 0
while ($num < 5000)
   while (!feof())
       $num++
        fread()
        PROCESSING, WHATEVER
fwrite() each 5000 lines
Loop