a:16:{s:17:"geoplugin_request";s:13:"176.90.23.132 ";s:16:"geoplugin_status";i:200;s:14:"geoplugin_ci ty";s:6:"Ankara";s:16:"geoplugin_region";s:15:"Ank ara Province";s:18:"geoplugin_areaCode";s:1:"0";s:17:" geoplugin_dmaCode";s:1:"0";s:21:"geoplugin_country Code";s:2:"TR";s:21:"geoplugin_countryName";s:6:"T urkey";s:23:"geoplugin_continentCode";s:2:"AS";s:1 8:"geoplugin_latitude";s:15:"39.911701202393";s:19 :"geoplugin_longitude";s:15:"32.840301513672";s:20 :"geoplugin_regionCode";s:2:"68";s:20:"geoplugin_r egionName";s:15:"Ankara Province";s:22:"geoplugin_currencyCode";s:3:"TRL"; s:24:"geoplugin_currencySymbol";s:7:"₤";s:27:"geop lugin_currencyConverter";N;}

bu değeri unserialize ettiğinizde dizi olarak dönmüyormu
1. konuda eregi metodu var php5.3 de eregi metodu önerilmiyor
http://www.php.net/manual/tr/function.eregi.php

unserialize : http://tr.php.net/manual/tr/function.unserialize.php