php - Converting City&Country to Coordinate points -

-

is there fast php code convert city + country latitude , longitude coordinates. have list of locations , need convert them coordinates. tried doing in javascript, encountered problems trying results php store in json file. there efficient php code this?

thanks.

in app, i'm using following function geo-code locations using google service. function takes 1 parameter - location geo-code (e.g. "boston, usa" or "sw1 1aa, united kingdom") , returns associative array lat/lon. if error occurs or location cannot determined, returns false.

note in many cases city + country not able determine location uniquely. example, there 100 cities named springfield in usa alone. also, when passing country geo-coding service, make sure put full country name , not 2-letter code. found hard way: passing 'ca' "canada" , getting strange results. apparently, google assumed 'ca' means "california".

function getgeolocationgoogle($location) {     $url = "http://maps.googleapis.com/maps/api/geocode/xml?address=". urlencode($location) . "&sensor=false";     $useragent = "mozilla/5.0 (x11; u; linux i686; en-us; rv:1.9.2) gecko/20100115 firefox/3.6 firephp/0.4";      //setup curl object , execute     $curl = curl_init($url);     curl_setopt($curl, curlopt_useragent, $useragent);     curl_setopt($curl, curlopt_failonerror, true);     curl_setopt($curl, curlopt_returntransfer, 1);     $result = curl_exec($curl);      $req = $location;      //process response google servers     if (($error = curl_errno($curl)) > 0)     {         return false;     }       $geo_location = array();     //try convert xml response object     try     {         $xmldoc = new domdocument();         $xmldoc->loadxml($result);         $root = $xmldoc->documentelement;          //get errors         $status = $root->getelementsbytagname("status")->item(0)->nodevalue;         if($status != "ok")         {             $error_msg = "could not determine geographical location of $location - response code $status";         }         $location = $root->getelementsbytagname("geometry")->item(0)->getelementsbytagname("location")->item(0);         if(!$location)         {             return false;         }          $xmllatitude = $location->getelementsbytagname("lat")->item(0);         $valuelatitude = $xmllatitude->nodevalue;         $geo_location['latitude'] = $valuelatitude;           //get longitude         $xmllongitude = $location->getelementsbytagname("lng")->item(0);         $valuelongitude = $xmllongitude->nodevalue;         $geo_location['longitude'] = $valuelongitude;          //return location - measure         $geo_location['location'] = $req;     }     catch (exception $e)     {         return false;     }             return $geo_location; }

Comments

Post a Comment

Popular posts from this blog

jasper reports - Fixed header in Excel using JasperReports -

-
how can create excel report fixed header using japserreports? mean need header fixed when scroll excel file. this possible adding couple properties in jrxml file each report. take @ advanced excel features freeze panes. if wanted freeze after first column header (down left side basically) this: <statictext> <reportelement style="sans_bold" mode="opaque" x="0" y="60" width="104" height="20" forecolor="#ffffff" backcolor="#666666"> <property name="net.sf.jasperreports.export.xls.auto.filter" value="start"/> <property name="net.sf.jasperreports.export.xls.column.width" value="110"/> <property name="net.sf.jasperreports.export.xls.freeze.column.edge" value="left"/> </reportelement> &
Read more

media player - Android: mediaplayer went away with unhandled events -

-
i need duration of audio file series of voice announcements need play app. have added audio files resources , play fine. sample code below works perfect intended purpose: return duration of audio files. here code: float getdurationofaudioresource(locationenum loc, context context){ float duration = 0; try { mediaplayer mp; mp = mediaplayer.create(context, getaudioresource(loc)); duration = mp.getduration(); mp.release(); mp = null; } catch (illegalstateexception e) {e.printstacktrace(); logerror(25, "testdescitem:fault::could not open mediaplayer object audio resource.");} return duration; } here's weird thing. code called in main activity prepares set of audio instructions given test. there no errors within activity. second activity called, long string of errors on logcat. 03-07 13:23:43.820: i/actionlogger(21435): gentest_info_test #0 created. 03-07 13:23:43.830: i/actionlogger(21435): gente
Read more

python - ('The SQL contains 0 parameter markers, but 50 parameters were supplied', 'HY000') or TypeError: 'tuple' object is not callable -

-
import pyodbc,nltk,array cnxn = pyodbc.connect('driver={mysql odbc 5.1 driver};server=127.0.0.1;port=3306;database=information_schema;user=root; password=1234;option=3;') cursor = cnxn.cursor() cursor.execute("use collegedatabase ;") cursor.execute("select * sampledata ; ") cnxn.commit() s=[] j=[] x=[] words = [] w = [] sfq = [] pos=[] entry in cursor: s.append(entry.injury_type),j.append(entry.injury_desc) nltk.tokenize import punktwordtokenizer nltk.corpus import stopwords tokenizer = punktwordtokenizer() english_stops = set(stopwords.words('english')) in range(0,26): # filter stop words tokenizer.tokenize(j[i]) w.append([word word in tokenizer.tokenize(j[i]) if word not in english_stops]) in range(0 , 26):#converting tokenzied text ito string sfq.append(" ".join(w[a])) replacers import regexpreplacer replacer = regexpreplacer() in range (0,26):#pos tagging replacer.repl
Read more