[Jf]

I think this will work way better for you (No strcmp/looping is needed)

PHP код:

enum carEnum{
    id_x,
    carowner[MAX_PLAYER_NAME], // Since you have this variable, only player-created vehicles will be used in this enum.
    carmodelid,
    Float:c_x,
    Float:c_y,
    Float:c_z,
    Float:c_r,
    c_color1,
    c_color2,
    c_respawntime,
    cnitro,
    paintjob,
    plate,
    c_autorespawn,
    carteam,
    db_id
};
new cInfo[MAX_PLAYERS][carEnum]; // Changed to MAX_PLAYERS. This enum is related to player-created vehicles, no vehicles created by the server. Right? 


I'm assuming you create the vehicle doing something like this (Triggered by the player). This is an example..

PHP код:

new Float:X, Float:Y, Float:Z, Float:A;
GetPlayerPos(playerid, X, Y, Z);
GetPlayerFacingAngle(playerid, A);
cInfo[playerid][id_x] = CreateVehicle(...) // We store the vehicle id on playerid -> id_x variable.
cInfo[playerid][carmodelid] = GetPlayerVehicleModelID(cInfo[playerid][id_x]); // Stuff..
cInfo[playerid][c_x] = X; // Stuff..
cInfo[playerid][c_y] = Y; // Stuff..
cInfo[playerid][c_z] = Z; // More Stuff..
cInfo[playerid][c_r] = A; // Etc.. 


Now the callbacks..

PHP код:

public OnPlayerConnect(playerid)
{
    // Set id_x to -1.. (You should reset the entire enum to their original values when a player connects)
    cInfo[playerid][id_x] = -1; // We set it to -1, because what if the player creates a vehicles, when there is no other vehicle created yet?.
    // for(;;) cInfo[playerid][Enum_Variable] = DEFAULT_VALUE   ...
    return 1;
}
// Player-created vehicle, no loop needed. Just a check if the vehicle has been created.
public OnPlayerDisconnect(playerid, reason)
{
    // You check if carteam is 255 so..
    if(cInfo[playerid][carteam] == 255 && cInfo[playerid][id_x] >= 0) DestroyVehicle(cInfo[playerid][id_x]);
    
    // Then you must reset id_x.. (You should reset the entire enum to their original values, again)
    cInfo[playerid][id_x] = -1;
    
    // for(;;) cInfo[playerid][Enum_Variable] = DEFAULT_VALUE   ...
    return 1;
} 


Hope it helps.