[UsaBoy91]

bool is good if you need a variabile to check it if is 1 or 0

e.g:

pawn Code:

new bool: a[200];

//onplayercommandtext

if(!strcmp(cmdtext,"/test",true))
{
   if(a[playerid] == true) // a[playerid] or a[playerid] == true
   {
     SendClientMessage(playerid,COLOR_WHITE,"You are aleardy admin.");
     return 1;
   }
   a[playerid] = 1;
   SendClientMessage(playerid,COLOR_WHITE,"You are now admin.");
}

Bool is specifed for binary base ( 0 - false ; 1 - true )