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PHP Manual


(PHP 4 >= 4.0.4, PHP 5)

bzreadBinary safe bzip2 file read


string bzread ( resource $bz [, int $length = 1024 ] )

bzread() reads from the given bzip2 file pointer.

Reading stops when length (uncompressed) bytes have been read or EOF is reached, whichever comes first.



The file pointer. It must be valid and must point to a file successfully opened by bzopen().


If not specified, bzread() will read 1024 (uncompressed) bytes at a time. A maximum of 8192 uncompressed bytes will be read at a time.

Return Values

Returns the uncompressed data, or FALSE on error.


Example #1 bzread() example


$bz bzopen($file"r") or die("Couldn't open $file");

$decompressed_file '';
while (!
feof($bz)) {
$decompressed_file .= bzread($bz4096);

"The contents of $file are: <br />\n";


See Also

  • bzwrite() - Binary safe bzip2 file write
  • feof() - Tests for end-of-file on a file pointer
  • bzopen() - Opens a bzip2 compressed file

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