From:             Arne dot Heizmann at csr dot com
Operating system: Windows 2000
PHP version:      5.2.5
PHP Bug Type:     *General Issues
Bug description:  exec() swallows whitespace in output

Description:
------------
The exec() call is supposed to return the output of the system call into
the second parameter.

However, it modifies this output. It behaves as if rtrim() is called on
each line. This causes data loss because rtrim() is not reversible.

Reproduce code:
---------------
<?
    header ('Content-type: text/plain');
    file_put_contents ('temp', " "); // also reproducible with "\t"
    exec ("type temp", $ops, $result);
    echo var_export ($ops, true);
?>

Expected result:
----------------
array (
  0 => ' ',
)

Actual result:
--------------
array (
  0 => '',
)

-- 
Edit bug report at http://bugs.php.net/?id=43908&edit=1
-- 
Try a CVS snapshot (PHP 4.4): 
http://bugs.php.net/fix.php?id=43908&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): 
http://bugs.php.net/fix.php?id=43908&r=trysnapshot52
Try a CVS snapshot (PHP 5.3): 
http://bugs.php.net/fix.php?id=43908&r=trysnapshot53
Try a CVS snapshot (PHP 6.0): 
http://bugs.php.net/fix.php?id=43908&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=43908&r=fixedcvs
Fixed in release:             
http://bugs.php.net/fix.php?id=43908&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=43908&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=43908&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=43908&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=43908&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=43908&r=notwrong
Not enough info:              
http://bugs.php.net/fix.php?id=43908&r=notenoughinfo
Submitted twice:              
http://bugs.php.net/fix.php?id=43908&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=43908&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=43908&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=43908&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=43908&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=43908&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=43908&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=43908&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=43908&r=mysqlcfg

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