image_of_change.php

<?php

function getLink($city,$country) {

    $city = " ".$city;
    $country = " ".$country;
    //test.csv is available on  https://gist.github.com/anonymous/69693c7fa69284fabc1028fc96c4a2fa
    $csvData = file_get_contents("test.csv");
    $lines = explode(PHP_EOL, $csvData);
    $array = array();
    foreach ($lines as $line) {
        $array[] = str_getcsv($line);
    }

    for ($x = 0; $x <= 152; $x++) {
        $temp = explode(",", $array[$x][7]);
        if (strcmp($city, $temp[1]) == 0 || strcmp($country, $temp[1]) == 0){
            return ("https://climate.nasa.gov/images-of-change?id=".$array[$x][0]."#".$array[$x][0]);
            break;
        }
    } 

}


//Pass the city as the first parameter and the country as the second parameter
//Example:
echo getLink("Delhi","India");

?>