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bzread

(PHP 4 >= 4.3.3, PHP 5)

bzread -- Binary safe bzip2 file read

说明

string bzread ( resource bz [, int length] )

bzread() reads from the given bzip2 file pointer.

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

参数

bz

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

length

If not specified, bzread() will read 1024 (uncompressed) bytes at a time.

返回值

Returns the uncompressed data, or FALSE on error.

范例

例子 1. bzread() example

<?php

$file = "/tmp/foo.bz2";
$bz = bzopen($file, "r") or die("Couldn't open $file");

$decompressed_file = '';
while (!feof($bz)) {
  $decompressed_file .= bzread($bz, 4096);
}
bzclose($bz);

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

?>

参见

bzwrite()
feof()
bzopen()


add a note add a note User Contributed Notes
bitlz at mail dot ru
05-Aug-2004 10:02
max value of length is 8192 (2^13).
if length is more than 8192 bzread understand as 8192. :)

ps. php 5.0.0 under win2k sp4.
add a note add a note


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