It works ok on local host but buggy on remote host!

Hi coders, I wrote this piece of code to use for Google searching using daterange directive. it works ok on local host running IIS and PHP 5.1.2 but when i test it on my host running php 4.4.4 on linux, $julian_days_from and $julian_days_to variables don't get assigned any values and therefor they remain empty! What is wrong with this code? Here is the code: <?php if ($_POST){ if (empty($_POST['from'])){ $error[]='Please enter From date.'; } else{ $from=explode('-',$_POST['from']); $julian_days_from = gregoriantojd($from[1],$from[0],$from[2]); } if (empty($_POST['to'])){ $error[]='Please enter To date.'; } else { $to=explode('-',$_POST['to']); $julian_days_to = gregoriantojd($to[1],$to[0],$to[2]); } if ($julian_days_from>$julian_days_to){ $error[]='From date can not be greater than To date!'; } if (empty($_POST['search'])){ $error[]='Please enter your search term.'; } if (!isset($error)){ $search_ready=explode(' ',$_POST['search']); foreach($search_ready as $search_ready_val){ $search_term=$search_term.'+'.$search_ready_val; } switch($_POST['search_in']){ case ('web'): $query='http://www.google.com/search?hl='.$_POST['language'].'&q='.$search_term.'+'.'daterange:'.$julian_days_from.'-'.$julian_days_to.'&lr=lang_'.$_POST['language'];break;case ('images'): $query='http://images.google.com/images?hl='.$_POST['language'].'&q='.$search_term.'+'.'daterange:'.$julian_days_from.'-'.$julian_days_to.'&lr=lang_'.$_POST['language'];break;case ('video'): $query='http://video.google.com/videosearch?hl='.$_POST['language'].'&q='.$search_term.'+'.'daterange:'.$julian_days_from.'-'.$julian_days_to.'&lr=lang_'.$_POST['language'];break;case ('book'): $query='http://books.google.com/books?hl='.$_POST['language'].'&q='.$search_term.'+'.'daterange:'.$julian_days_from.'-'.$julian_days_to.'&lr=lang_'.$_POST['language'];break;default:} //header("Location:".$query);}}?><html><head><meta http-equiv="Content-Language" content="en-us"><title>Google Assistance - Date Rage Search</title><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="keywords" content="google,assistance,search,daterange,seo,linkchecker,meta tag generator,online metric converter,mail search,weblogsearch, search in weblogs,google page rank,pagerank,google hack,google sitemap,site map generator,online tools,seo tools,webmasters"><meta name="description" content="This website helps you use Google betterand faster. It even provids some SEO tools such as Meta Maker and LinkChecker..."><meta name="author" content="Hamed Takmil" /><script language="javascript" src="date_picker.js"></script><script type="text/javascript">function squery(){ window.location.assign("index.php?action=save");}<?phpif ($_POST && count($error)==0){ echo "window.open('".$query."');\n";}?></script></head><body bgcolor="#ffffff" topmargin="0"><form action="index.php" method="POST"name="simple"><div align="center"><table border="0" cellpadding="0" cellspacing="0" width="1024"> <tr> <td><img src="shim.gif" width="26" height="1" border="0" alt=""></td> <td><img src="shim.gif" width="37" height="1" border="0" alt=""></td> <td><img src="shim.gif" width="122" height="1" border="0" alt=""></td> <td><img src="shim.gif" width="4" height="1" border="0" alt=""></td> <td><img src="shim.gif" width="76" height="1" border="0" alt=""></td> <td><img src="shim.gif" width="35" height="1" border="0" alt=""></td> <td><img src="shim.gif" width="48" 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width="15">&nbsp;</td> <td width="1" height="12"><img src="shim.gif" width="1" height="12"border="0" alt=""></td> </tr> <tr> <td valign="top" align="left" rowspan="2" width="26">&nbsp;</td> <td valign="top" align="left" colspan="3" height="78"> <img name="index_C2_R2" src="images/index_C2_R2.jpg" width="163"height="78" border="0" alt="Helps you find things better"></td> <td valign="top" align="left" colspan="13" height="78"> <table border="0" width="100%" id="table5" height="100%"cellspacing="1"> <tr> <td>&nbsp;</td> </tr> </table> </td> <td width="1" height="78"><img src="shim.gif" width="1" height="78"border="0" alt=""></td> </tr> <tr> <td valign="top" align="left" colspan="16" height="9"></td> <td width="1" height="9"><img src="shim.gif" width="1" height="9"border="0" alt=""></td> </tr> <tr> <td valign="top" align="left" rowspan="5" width="26">&nbsp;</td> <td valign="top" align="left" colspan="2" height="32"><imgname="index_C2_R4" src="images/index_C2_R4.jpg" width="159" height="32"border="0" alt=""></td> <td valign="top" align="left" colspan="2" height="32"><a href="index.php"> <img name="index_C4_R4" src="images/index_C4_R4.jpg" width="80"height="32" border="0" alt="Date Rage Search"></a></td> <td valign="top" align="left" colspan="2" height="32"><a href="weblog.php"> <img name="index_C6_R4" src="images/index_C6_R4.jpg" width="83"height="32" border="0" alt="Search in Weblogs"></a></td> <td valign="top" align="left" width="82" height="32"><ahref="converter.php"> <img name="index_C8_R4" src="images/index_C8_R4.jpg" width="82"height="32" border="0" alt="Units Converter"></a></td> <td valign="top" align="left" width="82" height="32"><ahref="mailerch.php"> <img name="index_C9_R4" src="images/index_C9_R4.jpg" width="82"height="32" border="0" alt="Get the results of your search in yourmailbox"></a></td> <td valign="top" align="left" width="82" height="32"><ahref="metamaker.php"> <img name="index_C10_R4" src="images/index_C10_R4.jpg" width="82"height="32" border="0" alt="Meta Tag Maker"></a></td> <td valign="top" align="left" width="81" height="32"><ahref="pagerank.php"> <img name="index_C11_R4" src="images/index_C11_R4.jpg" width="81"height="32" border="0" alt="Get google page rank"></a></td> <td valign="top" align="left" colspan="3" height="32"><ahref="sitemap.php"> <img name="index_C12_R4" src="images/index_C12_R4.jpg" width="82"height="32" border="0" alt="Google Site Map Generator"></a></td> <td valign="top" align="left" width="82" height="32"><a href="checker.php"> <img name="index_C15_R4" src="images/index_C15_R4.jpg" width="82"height="32" border="0" alt="Link Checker"></a></td> <td valign="top" align="left" colspan="2" height="32"><imgname="index_C16_R4" src="images/index_C16_R4.jpg" width="170" height="32"border="0" alt=""></td> <td width="1" height="32"><img src="shim.gif" width="1" height="32"border="0" alt=""></td> </tr> <tr> <td valign="top" align="left" colspan="16" height="4"><imgname="index_C2_R5" src="images/index_C2_R5.jpg" width="983" height="4"border="0" alt=""></td> <td width="1" height="4"><img src="shim.gif" width="1" height="4"border="0" alt=""></td> </tr> <tr> <td valign="top" align="left" rowspan="2" width="37"> <img name="index_C2_R6" src="images/index_C2_R6.jpg" width="37"height="29" border="0" alt="More tools comming soon!"></td> <td valign="top" align="left" colspan="15" height="7"><imgname="index_C3_R6" src="images/index_C3_R6.jpg" width="946" height="7"border="0" alt=""></td> <td width="1" height="7"><img src="shim.gif" width="1" height="7"border="0" alt=""></td> </tr> <tr> <td valign="top" align="left" colspan="4" height="22"><imgname="index_C3_R7" src="images/index_C3_R7.jpg" width="237" height="22"border="0" alt=""></td> <td align="center" colspan="6" rowspan="2"background="images/index_C7_R7.jpg"> <table border="0" width="100%" id="table1"> <tr> <td width="80%"> <input type="text" name="search" size="35" style="padding:0px;width: 100%; border-style: solid; border-width: 1px; "></td> <td align="center"> <input type="submit" value="Search" name="B1"style="font-family: Tahoma; font-size: 8pt; width: 76; height: 22"></td> </tr> </table> </td> <td valign="top" align="left" colspan="5" rowspan="2"><imgname="index_C13_R7" src="images/index_C13_R7.jpg" width="290" height="45"border="0" alt=""></td> <td width="1" height="22"><img src="shim.gif" width="1" height="22"border="0" alt=""></td> </tr> <tr> <td valign="top" align="left" colspan="5" height="23"><imgname="index_C2_R8" src="images/index_C2_R8.jpg" width="274" height="23"border="0" alt=""></td> <td width="1" height="23"><img src="shim.gif" width="1" height="23"border="0" alt=""></td> </tr> <tr> <td valign="top" align="left" rowspan="5" width="26">&nbsp;</td> <td valign="top" align="left" colspan="16" height="20"><imgname="index_C2_R9" src="images/index_C2_R9.jpg" width="983" height="20"border="0" alt=""></td> <td valign="top" align="left" rowspan="5" width="15">&nbsp;</td> <td width="1" height="20"><img src="shim.gif" width="1" height="20"border="0" alt=""></td> </tr> <tr> <td valign="top" align="left" colspan="12" height="32"><imgname="index_C2_R10" src="images/index_C2_R10.jpg" width="710" height="32"border="0" alt=""></td> <td valign="top" align="left" colspan="3" height="32"><imgname="index_C14_R10" src="images/index_C14_R10.jpg" width="259" height="32"border="0" alt=""></td> <td valign="top" align="left" width="14" height="32">&nbsp;</td> <td width="1" height="32"><img src="shim.gif" width="1" height="32"border="0" alt=""></td> </tr> <tr> <td valign="top" align="left" colspan="12" height="272"background="images/index_C2_R11.jpg"> <div align="center"> <table border="0" width="90%" id="table2"> <tr> <td colspan="6"><b><font size="2" face="Verdana">DateRange</font></b><hr></td> </tr> <tr> <td width="9%"><font size="2" face="Verdana">&nbsp;From:</font></td> <td width="17%"><font face="Arial"> <input type="text" name="from" size="20" style="height: 20"readonly="readonly"></font></td> <td width="9%"><font face="Verdana"> <a href="#"> <img border="0" src="images/DatePicker.gif" width="21"height="17" onclick="javascript:show_calendar('document.simple.from',document.getElementsByName('from').value);"></a></font></td> <td width="6%"><font size="2" face="Verdana">To :</font></td> <td width="23%"><font face="Arial"> <input type="text" name="to" size="20" style="height: 20"readonly="readonly"></font></td> <td width="31%"><font face="Verdana"> <a href="#"> <img border="0" src="images/DatePicker.gif" width="21"height="17" onclick="javascript:show_calendar('document.simple.to',document.getElementsByName('to').value);"></a></font></td> </tr> <tr> <td width="96%" colspan="6"><b> <font face="Tahoma" size="2" color="#FF0000"> <?php if (isset($error)){ foreach($error as $error_val){ echo $error_val.'<br>'; } } ?> </font></b></td> </tr> <tr> <td width="98%" colspan="6"><b><font size="2"face="Verdana"> Search in</font></b><hr></td> </tr> <tr> <td width="98%" colspan="6"><font face="Verdana"> <span style="font-size: 9pt"> <input type="radio" value="web" checkedname="search_in"></span></font><font face="Verdana" style="font-size:9pt">Web&nbsp;&nbsp; </font><font face="Verdana"> <span style="font-size: 9pt"> <input type="radio" name="search_in"value="images"></span></font><font face="Verdana" style="font-size:9pt">Images&nbsp; </font><span style="font-size: 9pt"><font size="2"face="Verdana"> <input type="radio" name="search_in"value="video"></font></span><font face="Verdana" style="font-size:9pt">Videos&nbsp; </font><font size="2" face="Verdana"> <span style="font-size: 9pt"> <input type="radio" name="search_in"value="book"></span><font face="Verdana" style="font-size:9pt">Books</font></font></td> </tr> <tr> <td width="98%" colspan="6"><b><font size="2" face="Tahoma"> Language</font></b><hr></td> </tr> <tr> <td width="98%" colspan="6" align="center"> <p align="left">&nbsp;<select size="1" name="language"style="font-family: Tahoma; font-size: 8pt; height: 20"> <option selected value="en">English</option> <option value="fa">Farsi</option> <option value="it">Italian</option> <option value="es">Spanish</option> <option value="fr">French</option> <option value="de">Deustch</option> <option value="ar">Arabic</option> </select></td> </tr> <tr> <td width="98%" colspan="6" align="center"> <input type="reset" value="Reset" name="B3" style="font-family:Tahoma; font-size: 8pt; width: 76; height: 22"></td> </tr> </table> </div> </td> <td valign="top" align="left" colspan="3" height="272"background="images/index_C14_R11.jpg"> <div align="center"> <table border="0" width="96%" id="table3"> <tr> <td> <p align="center"><b> <font size="2" face="Verdana" color="#000080">Search a particular date range</font></b></td> </tr> <tr> <td> <p align="left" style="margin: 10px 15px"><fontface="Verdana"> <span style="font-size: 8pt">An undocumented but powerful feature of Google's search is the ability to search within a particular date range. Before delving into the actual use of date range searching, there are a few things you shouldknow. First, a date range search has nothing to do with thecreation date of the content and everything to do with the indexingdate of the content. If I create a page on March 8, 1999, for instance, and Google doesn't get around to indexing it untilMay 22, 2002, for the purposes of a date range search, the datein question is May 22, 2002.</span></font></p> <p align="left" style="margin: 10px 15px"> <font face="Verdana" style="font-size: 8pt">Second, Googlecan index pages several times, and each time it does so, thedate on it changes. So don't count on a date range search staying consistent from day to day. The &quot;daterange:timestamp&quot; can change when a page is indexed more than once. Whether itdoes change depends on whether the content of the page haschanged.</font></p> <p align="left" style="margin: 10px 15px"> <font face="Verdana" style="font-size: 8pt"> <a target="_parent"href="http://reviews.cnet.com/4520-10165_7-6206764-2.html"> More...</a></font></td> </tr> </table> </div> </td> <td valign="top" align="left" rowspan="2" width="14">&nbsp;</td> <td width="1" height="272"><img src="shim.gif" width="1" height="272"border="0" alt=""></td> </tr> <tr> <td valign="top" align="left" colspan="12" height="22"><imgname="index_C2_R12" src="images/index_C2_R12.jpg" width="710" height="22"border="0" alt=""></td> <td valign="top" align="left" colspan="3" height="22"><imgname="index_C14_R12" src="images/index_C14_R12.jpg" width="259" height="22"border="0" alt=""></td> <td width="1" height="22"><img src="shim.gif" width="1" height="22"border="0" alt=""></td> </tr> <tr> <td align="center" colspan="16" height="56"> <table border="0" width="100%" id="table4" height="40"> <tr> <td width="35%"><font face="Tahoma" style="font-size:8pt">&nbsp;&nbsp;&nbsp;&nbsp; <a href="help.php">Help</a>&nbsp; |&nbsp; <ahref="contact.php">Contact Me</a>&nbsp; |&nbsp; <a target="_blank" href="http://www.google.com">GoogleSearch</a>&nbsp; |&nbsp; <a href="policy.php">Site Policy</a>&nbsp; |&nbsp; <a href="other_links.php">Other Links</a></font></td> <td style="border-left: 2px solid #C0C0C0" width="354"><fontface="Tahoma"> <span style="font-size: 8pt">&nbsp;&nbsp;&nbsp;&nbsp; © AllRights Reserved</span></font></td> <td align="center"><a href="http://www.google.com"target="_blank"> <img border="0" src="images/google_powered.png" width="80"height="15"></a> <a href="http://www.php.net" target="_blank"> <img border="0" src="images/php-powered.gif" width="80"height="15"></a> <a href="http://www.linux.org" target="_blank"> <img border="0" src="images/linux_powered.gif" width="80"height="15"></a></td> </tr> </table> </td> <td width="1" height="56"><img src="shim.gif" width="1" height="56"border="0" alt=""></td> </tr></table></div></form></body></html>