[Matnix]

try :

pawn Код:

stock space (string[], find, space)
{
    for(new i=0; string[i]; i++)
    {
        if(string[i] == find)
        {
            string[i] = space;
        }
    }
}

// on player text
new name[24];
GetPlayerName(playerid, name, sizeof(name));
space(name, '_', ' ');