Here's the error message

Notice [8]:
The error was reported on line 177 of /home/****/public_html/mercuryboard/lib/jpgraph/jpgraph.php

Code:
174
175 function CheckPHPVersion($aMinVersion)
176 {
177    list($majorC, $minorC, $editC) = preg_split('[/.-]', PHP_VERSION);
178    list($majorR, $minorR, $editR) = preg_split('[/.-]', $aMinVersion);
179
180    if ($majorC > $majorR) return true;


Backtrace:

File: /home/****/public_html/mercuryboard/lib/jpgraph/jpgraph.php
Line: 177
Call: See above for details.

File: /home/****/public_html/mercuryboard/lib/jpgraph/jpgraph.php
Line: 193
Call: CheckPHPVersion('4.3.1')

File: /home/****/public_html/mercuryboard/func/register.php
Line: 218
Call: require('/home/****/public_html/mercuryboard/lib/jpgraph/jpgraph.php')

File: /home/****/public_html/mercuryboard/func/register.php
Line: 66
Call: register->create_image()

File: /home/****/public_html/mercuryboard/func/register.php
Line: 58
Call: register->registration()

File: /home/****/public_html/mercuryboard/index.php
Line: 135
Call: register->execute()

Thanks