Just make "player_to_kick" an array and add the found players:
PHP Code:
players_to_kick = []; // changed
player_warn = undefined;
players = getentarray("player","classname");
for(i=0;i<players.size;i++)
{
name = getnormalname(players[i].name);
if(name == name1 || isSubStr(name, name1))
players_to_kick[players_to_kick.size] = players[i]; // changed
}
// changed:
if(players_to_kick.size == 1) {
// only one, normal kick code
} else {
tmp = "multiple players: ";
for (i=0; i<players_to_kick; i++)
tmp += players_to_kick[i] + " ";
iprintlnbold(tmp);
}