Question

我有一个带地理数据的CSV。我已经创建了一个脚本，将其转换为数组，并将其保存在数据库中。但我想将lat和long保存为小数。但由于一些奇怪的原因，它显示一个值，但当我将它转换为任何类型的浮点数或decimail它显示0？

ini_set('auto_detect_line_endings', TRUE);
$tmpName = $_FILES['fileToUpload']['tmp_name'];
$csvAsArray = array_map('str_getcsv', file($tmpName));
array_shift($csvAsArray); //removes first
array_pop($csvAsArray); //removes last

foreach ($csvAsArray as $k=>$v) {
    $municipality = str_replace('"', "", $v[2]);
    $city = str_replace('"', "", $v[3]);
    $zip = str_replace('"', "", $v[4]);
    $lat = $v[5];
    $data = [
        'country' => $v[0],
        'province' => $v[1],
        'municipality' => $v[2],
        'city' => $v[3],
        'nl_fourpp' => $v[4],
        'lat' => $v[5],
        'lng' => $v[6],
        'date_created' => date('Y-m-d H:i:s')
    ];

    var_dump($v[6]);  // THIS SHOWS: string(15) "4.91666"
    var_dump((float) $v[6]);  // THIS SHOWS: float(0)
    var_dump(floatval($v[6]));  // THIS SHOWS: float(0)
    var_dump(number_format($v[6]));  // THIS SHOWS: Warning: number_format() expects parameter 1 to be float, string given in
    //etc...

    //save the fields
    ...............
}

数据数组看起来像这样（你可以看到它显示了lat和lng .....但是当我将它转换为数字时它只显示0？

    Array
(
    [country] => NL
    [province] => Noord-Holland
    [municipality] => Amsterdam
    [city] => Amsterdam
    [nl_fourpp] => 1000
    [lat] => 52.34999
    [lng] => 4.91666
    [date_created] => 2017-10-21 07:18:21
)
1

当我使用symfonys var dumper转储var时编辑我获得"\x005\x002\x00.\x003\x004\x009\x009\x009\x00"但是当我变量转储它时我得到＆＃34;字符串＆＃34;编号

Answer 1

改变它

public class SharedPrefManager {

    private static SharedPrefManager mInstance;
    private static Context mCtx;
    private static final String SHARED_PREF_NAME = "mysharedpref12";
    private static final String KEY_USERNAME = "username";
    private static final String KEY_USER_MAIL = "usermail";
    private static final String KEY_USER_ID = "userid";
    private static final String KEY_PHONE = "userphone";
    private static final String KEY_NAME = "usename";
    private static final String KEY_PIN = "pin";
    private static final String KEY_SUR = "surname";
    private static final String KEY_ADD = "address";

    private SharedPrefManager(Context context) {
        mCtx = context;
    }

    public static synchronized SharedPrefManager getInstance(Context context) {
        if (mInstance == null) {
            mInstance = new SharedPrefManager(context);
        }
        return mInstance;
    }

    public boolean userLogin(int id, int pin, String phone, String username, String mail, String name, String surname, String address/**, String catagory*/){

        SharedPreferences sharedPreferences = mCtx.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);
        SharedPreferences.Editor editor = sharedPreferences.edit();

        editor.putInt(KEY_USER_ID, id);
        editor.putInt(KEY_PIN, pin);
        editor.putString(KEY_PHONE, phone);
        editor.putString(KEY_USERNAME, username);
        editor.putString(KEY_USER_MAIL, mail);
        editor.putString(KEY_NAME, name);
        editor.putString(KEY_SUR, surname);
        editor.putString(KEY_ADD, address);
        //editor.putString(KEY_CATA, catagory);

        editor.apply();

        return true;

    }

    public boolean isLoggedIn(){
        SharedPreferences sharedPreferences = mCtx.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);
        if (sharedPreferences.getString(KEY_USERNAME, null) != null){
            return true;
        }
            return false;
    }

    public boolean logOut(){
        SharedPreferences sharedPreferences = mCtx.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);
        SharedPreferences.Editor editor = sharedPreferences.edit();
        editor.clear();
        editor.apply();
        return true;
    }

    public int getid(){
        SharedPreferences sharedPreferences = mCtx.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);
        return sharedPreferences.getInt(KEY_USER_ID, 0);
        //return sharedPreferences.getInt(KEY_USER_ID, Integer.parseInt(null));
    }

    public int getpin(){
        SharedPreferences sharedPreferences = mCtx.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);
        return sharedPreferences.getInt(KEY_PIN,0);
        /*SharedPreferences sharedPreferences = mCtx.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);
        return sharedPreferences.getInt(KEY_PIN, Integer.parseInt(null));*/
    }

    public String getUsername(){
        SharedPreferences sharedPreferences = mCtx.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);
        return sharedPreferences.getString(KEY_USERNAME, null);
    }

    public String getUserEmail(){
        SharedPreferences sharedPreferences = mCtx.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);
        return sharedPreferences.getString(KEY_USER_MAIL, null);
    }

    public String getUserPhone(){
        SharedPreferences sharedPreferences = mCtx.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);
        return sharedPreferences.getString(KEY_PHONE, null);
    }

    public String getName() {
        SharedPreferences sharedPreferences = mCtx.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);
        return sharedPreferences.getString(KEY_NAME, null);
    }

    public String getSurname() {
        SharedPreferences sharedPreferences = mCtx.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);
        return sharedPreferences.getString(KEY_SUR, null);
    }

    public String getAddress() {
        SharedPreferences sharedPreferences = mCtx.getSharedPreferences(SHARED_PREF_NAME, Context.MODE_PRIVATE);
        return sharedPreferences.getString(KEY_ADD, null);
    }

}

到

var_dump(number_format($v[6]));

Answer 2

好吧仍然不知道问题是什么，但我通过做

修复了它

    public function FixLatLngStr($str) {
    $x = explode("\x00", $str);
    array_shift($x); //removes first
    array_pop($x); //removes last
    return implode("",$x);
}

并返回“正常”浮点值

带浮点数的字符串（纬度，longituse）不能转换为float - 这表示为0

2 个答案: