Have array like below :
Array
(
[0] => stdClass Object
(
[city_id] => 2222
[city_name] => newCity
)
[1] => stdClass Object
(
[city_id] => 4444
[city_name] => oldCity
)
[2] => stdClass Object
(
[city_id] => 6666
[city_name] => newCity2
)
)
Now, I want get city_id when I set city_name, how can I get it in my codes?
For example, If I set newCity2 for city_name then I see 6666 for city_id and etc.
You would have to iterate over the array and check city_name to get the corresponding ID. You could also do this initially to set up an array with city_name as the key and city_id as the value.
foreach ($array as $value) {
if ($value->city_name == $compareCityName) {
$city_id = $value->city_id;
}
}
Undefined variable: cityId, my code is : $city = 'oldCity'; foreach($results as $value){ $cityName = $value->city_name; if ($cityName == $city) { $cityId = $value->city_id; } } var_dump ($cityId); exit;
oldCity was found$city = 'oldCity'; as you can see in my codes, but why can not find it?$results$results is same as $array not else, and in the $results in my main Q, oldCity is availableYou need to loop through it as
foreach($data as $key=>$val){
echo 'City ID ::'.$val->city_id."<br />";
echo 'City Name ::'.$val->city_name."<br />";
}
If you want to see a particular data then you can modify above as
foreach($data as $key=>$val){
if($val->city_name == 'newCity2'){
echo 'City ID ::'.$val->city_id."<br />";
break;
}
}
function getCityIDByName($cityname,$data){
$return = '';
foreach($data as $key=>$val){
if($val->city_name == $cityname){
$return = $val->city_id
break;
}
}
return $return ;
}
$city_id = getCityIDByName ('newCity2',$data);
