改数组键名从字母A开始..

array(18) {
  [0] => string(6) "月租"
  [1] => string(15) "月最低消费"
  [2] => string(6) "短信"
  [3] => string(12) "查询余额"
  [4] => string(12) "电路呼叫"
  [5] => string(14) "ip回拨呼叫"
  [6] => string(14) "ip直拨呼叫"
  [7] => string(6) "调账"
  [8] => string(12) "主叫显示"
  [9] => string(12) "亲情号码"
  [10] => string(12) "集团号码"
  [11] => string(12) "呼叫转移"
  [12] => string(12) "漫游申请"
  [13] => string(12) "开通国际"
  [14] => string(12) "语音包月"
  [15] => string(6) "游戏"
  [16] => string(6) "软件"
  [17] => string(12) "图铃下载"
}
怎么把键名变成英文字母
array(18) {
  [A] => string(6) "月租"
  [B] => string(15) "月最低消费"
  [C] => string(6) "短信"
  .......

两个方法
1.自己建个数组，把id与字母影射
2.使用ascii码

PHP code

$b = array();
foreach($a as $key=>$val){
    $b[$bChar] = $val;
    $bChar++;
}

错了
如下：
PHP code

$bChar = 'A';
$b = array();
foreach($a as $key=>$val){
    $b[$bChar] = $val;
    $bChar++;
}

$s=array(
  "月租",
  "月最低消费",
  "短信",
  "查询余额",
 "电路呼叫",
  "ip回拨呼叫",
 "ip直拨呼叫"

);
$h=array();
for($i=0;$i<count($s);$i++){
$asc=$i+65;

$h[chr($asc)]=$s[$i];

}
print_r($h);

PHP code

$s=array(
  "月租",
  "月最低消费",
  "短信",
  "查询余额",
 "电路呼叫",
  "ip回拨呼叫",
 "ip直拨呼叫"
);

foreach(array_keys($s) as $v) $t[] = chr($v + ord('A'));
$s = array_combine($t, $s);

Array
(
  [A] => 月租
  [B] => 月最低消费
  [C] => 短信
  [D] => 查询余额
  [E] => 电路呼叫
  [F] => ip回拨呼叫
  [G] => ip直拨呼叫
)