Description:
------------
PEAR can't execute on PHP 4.2.
A reason is that it is using file_get_contents() function.

PEAR/Installer/Role.php(Line 231):
                $parser->parse(file_get_contents($file));


Test script:
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echo '<?php require "http://go-pear.org/"; ?>' |php -Cq


Expected result:
----------------
Successed.


Actual result:
--------------
Bootstrapping: PEAR...................(remote) ok
Bootstrapping: Archive_Tar............(remote) ok
Bootstrapping: Console_Getopt.........(remote) ok
Downloading package: DB...............ok
Downloading package: Net_Socket.......ok
Downloading package: Net_SMTP.........ok
Downloading package: Mail.............ok
Downloading package: XML_Parser.......ok
Downloading package: PHPUnit..........ok
Extracting installer..................ok
<br />
<b>Fatal error</b>:  Call to undefined function:  file_get_contents() in 
<b>/tmp/gopehNRkQH/PEAR/Installer
/Role.php</b> on line <b>231</b><br />