print_r($dataip); foreach ($dataip as $key=>$value) { $data['ip'] = $value; $data['iplong'] = bindec(decbin(ip2long($value))); print_r($data); }
打印出来的结果为：
array
(
[0] => 208.104.70.215
[1] => 74.101.176.171
[2] => 73.17.35.30
[3] => 70.198.197.3
[4] => 46.44.179.76
)
====
array
(
[ip] => 208.104.70.215
[iplong] => 0
)
array
(
[ip] => 74.101.176.171
[iplong] => 0
)
array
(
[ip] => 73.17.35.30
[iplong] => 0
)
array
(
[ip] => 70.198.197.3
[iplong] => 0
)
array
(
[ip] => 46.44.179.76
[iplong] => 774681420
)
只有最后一个转换成功了，其他的都失败了，这是什么原因？
回复讨论(解决方案) ip2long不能对数组转换吧？
没有问题 array( [ip] => 208.104.70.215 [iplong] => 3496494807)array( [ip] => 74.101.176.171 [iplong] => 1248178347)array( [ip] => 73.17.35.30 [iplong] => 1225859870)array( [ip] => 70.198.197.3 [iplong] => 1187431683)array( [ip] => 46.44.179.76 [iplong] => 774681420)

但不知你想干什么
版主大人有没有改代码，我在本地试了无数次都只有读出最后一个。不知道是什么原因。
$value) { $data['ip'] = $value; $data['iplong'] = bindec(decbin(ip2long($value))); print_r($data); }
输出
array( [ip] => 208.104.70.215 [iplong] => 3496494807)array( [ip] => 74.101.176.171 [iplong] => 1248178347)array( [ip] => 73.17.35.30 [iplong] => 1225859870)array( [ip] => 70.198.197.3 [iplong] => 1187431683)array( [ip] => 46.44.179.76 [iplong] => 774681420)

也是正常的
如果你把 print_r($data); 放到循环外面的话，就只有最后一个了
?，正常。
我的完整代码是这样的
$dataip= explode(\n, $_post['ip']); if(empty($dataip)){ $this->error('未填写ip!');}//$dataip = array('208.104.70.215', '74.101.176.171', '73.17.35.30', '70.198.197.3', '46.44.179.76');print_r($dataip);foreach ($dataip as $key=>$value) { $data['ip'] = $value; $data['iplong'] = bindec(decbin(ip2long($value))); print_r($data); }
如果填入第五行数字里面的ip到表单后提交，不管是否注释第五行，打印出来的数组都是一样的。
但是循环的结果却不同，结果见图。我真不知道怎么会出现这个问题，纠结了好一阵。
多谢楼上几位找到问题了，是表单里面的前后空格导致获取不到值。