显示数组中所有元素的数据类型

Question

我有一个数组

array:23 [▼
  "cpe_mac" => "204492519985"
  "bandwidth_max_up" => 30000
  "bandwidth_max_down" => 50000
  "filter_icmp_inbound" => true
  "dmz_enabled" => false
  "dmz_host" => "http:\/\/ddd.com"
  "vlan_id" => 2
  "dns" => array:2 [▶]
  "xdns_mode" => 0
  "cfprofileid" => 11111
  "stub_response" => 0
  "acl_mode" => 1
  "portal_url" => "http:\/\/portal.com"
  "fullbandwidth_max_up" => 1000000
  "fullbandwidth_max_down" => 2000000
  "fullbandwidth_guaranty_up" => 300000
  "fullbandwidth_guaranty_down" => 400000
  "account_id" => 1000
  "location_id" => 3333
  "network_count" => 3
  "group_name" => "test_group"
  "vse_id" => 20
  "firewall_enabled" => false
]

我想知道他们每个人的数据类型，所以我这样做了

$cpe_type = [];
foreach ($cpe as $k => $v) {
    $cpe_type[$k] = gettype($v);
}

如愿以偿

array:23 [▼
  "cpe_mac" => "string"
  "bandwidth_max_up" => "integer"
  "bandwidth_max_down" => "integer"
  "filter_icmp_inbound" => "boolean"
  "dmz_enabled" => "boolean"
  "dmz_host" => "string"
  "vlan_id" => "integer"
  "dns" => "array"
  "xdns_mode" => "integer"
  "cfprofileid" => "integer"
  "stub_response" => "integer"
  "acl_mode" => "integer"
  "portal_url" => "string"
  "fullbandwidth_max_up" => "integer"
  "fullbandwidth_max_down" => "integer"
  "fullbandwidth_guaranty_up" => "integer"
  "fullbandwidth_guaranty_down" => "integer"
  "account_id" => "integer"
  "location_id" => "integer"
  "network_count" => "integer"
  "group_name" => "string"
  "vse_id" => "integer"
  "firewall_enabled" => "boolean"
]

是否有任何预制的 PHP 函数可以为我提供类似的功能？

Answer 1

您可以使用 array_map:

var_dump(array_map('gettype', $array));

Answer 2

ArrayMap with gettype 作为回调就足够了。

这将是最接近您想要实现的本机实现。

Answer 3

从调试的角度来看，var_dump 将向您显示 PHP 中任何对象的类型和值的可呈现输出。

从编码的角度来看，array_map 是转换数组的最佳选择。只需为其提供一个回调，它就会转换所有值：

array_map('gettype', $array);

Here 是一个有效的 phpplayground 示例。

显示数组中所有元素的数据类型

Show data type of all the elements in the array

php

arrays

elements

gettype

iterated-function