this question has answer here:
it has been few months since i've started learn php, i've got far, , whilst ran dozens of problems, have fortunately been able fix them, today's problem, not duplicate question, different, i've read stack overflow questions matter, of no help.
i getting following error:
notice: undefined index: city in /applications/xampp/xamppfiles/htdocs/index.php on line 99
this code:
<?php $weather = ""; $error = ""; if ($_get['city']) { $urlcontents = file_get_contents("http://api.openweathermap.org/data/2.5/weather?q=".urlencode($_get['city']).",uk&appid=hidden"); $weatherarray = json_decode($urlcontents, true); if ($weatherarray['cod'] == 200) { $weather = "the weather in ".$_get['city']." '".$weatherarray['weather'][0]['description']."'. "; $tempincelcius = intval($weatherarray['main']['temp'] - 273); $weather .= " temperature ".$tempincelcius."°c , wind speed ".$weatherarray['wind']['speed']."m/s."; } else { $error = "could not find city - please try again."; } } ?> i using xampp , php.ini there too.
from code syntax think problem in how getting city. error indicates cannot find index of city in $_get; has not been set. add isset check before running code, prevent errors:
if ( isset($_get['city']) ) { $urlcontents = file_get_contents("http://api.openweathermap.org/data/2.5/weather?q=".urlencode($_get['city']).",uk&appid=hidden"); //... } this prevent code run , avoid errors; check url make sure contains: https://example.com?city=somecity. should fix error.
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