比较三个数组中的值并在php中获取特定值
我比较数组中的三个值，得到所有值 如何输出特定值或只想输出的值 因为我想输出我只需要的值 我有以下代码：比较三个数组中的值并在php中获取特定值,php,arrays,Php,Arrays,我比较数组中的三个值，得到所有值 如何输出特定值或只想输出的值 因为我想输出我只需要的值 我有以下代码： <?php $participants = [ [ 'calleridnum' => 1, 'callee' => 'yay' ], [ 'calleridnum' => 2, 'callee' => 'yay' ], [ 'calleridnum' => 3,
<?php
$participants = [
[ 'calleridnum' => 1,
'callee' => 'yay'
],
[ 'calleridnum' => 2,
'callee' => 'yay'
],
[ 'calleridnum' => 3,
'callee' => 'yay'
]
];
$conferance_participants = [
[ 'uid' => 1,
'caller' => 'yay2',
'dit' => 'deze'
],
[ 'uid' => 2,
'caller' => 'test',
'dit' => 'wew'
]
];
$contacts = [
[ 'name' => 1,
'test' => 'yay2',
'limit' => 1
],
[ 'name' => 2,
'test' => 'yay2',
'limit' => 1
]
];
foreach ($participants as $participant=>$p) {
foreach ($conferance_participants as $conferance_participant=>$cp) {
foreach ($contacts as $contact=>$cs) {
if (($p['calleridnum'] == $cp['uid']) && ($cp['uid'] == $cs['name'])){
$conferance_participants[$conferance_participant] = array_merge(
$participants[$participant],
$conferance_participants[$conferance_participant],
$contacts[$contact]
);
}
}
}
}
echo "<pre>";
print_r($conferance_participants);
echo "</pre>";
?>
nametestdit
因此，我的输出将是：
<?php
$participants = [
[ 'calleridnum' => 1,
'callee' => 'yay'
],
[ 'calleridnum' => 2,
'callee' => 'yay'
],
[ 'calleridnum' => 3,
'callee' => 'yay'
]
];
$conferance_participants = [
[ 'uid' => 1,
'caller' => 'yay2',
'dit' => 'deze'
],
[ 'uid' => 2,
'caller' => 'test',
'dit' => 'wew'
]
];
$contacts = [
[ 'name' => 1,
'test' => 'yay2',
'limit' => 1
],
[ 'name' => 2,
'test' => 'yay2',
'limit' => 1
]
];
foreach ($participants as $participant=>$p) {
foreach ($conferance_participants as $conferance_participant=>$cp) {
foreach ($contacts as $contact=>$cs) {
if (($p['calleridnum'] == $cp['uid']) && ($cp['uid'] == $cs['name'])){
unset($contacts[$contact]['name'], $contacts[$contact]['test']);
unset($conferance_participants[$conferance_participant]['caller'], $conferance_participants[$conferance_participant]['dit']);
$conferance_participants[$conferance_participant] = array_merge(
$participants[$participant],
$conferance_participants[$conferance_participant],
$contacts[$contact]
);
$contacts[$contact]['name'] = $cs['name'];
}
}
}
}
echo "<pre>";
print_r($conferance_participants);
echo "</pre>";
您可以在合并数组之前取消设置数组键。然后为上面循环所需的$contacts数组再次设置“name”键
以下是修改后的代码示例：
Array
(
[0] => Array
(
[calleridnum] => 1
[callee] => yay
[uid] => 1
[limit] => 1
)
[1] => Array
(
[calleridnum] => 2
[callee] => yay
[uid] => 2
[limit] => 1
)
)
我希望这能回答你的问题。谢谢。合并后，您可以使用array\u intersect\u key（）
你的代码很难理解
您的foreach
将执行的次数
此代码的foreach
执行次数将等于或小于您的代码，因为它将在找到匹配项后立即停止
此外，我还创建了一个新函数，用于在另一个数组中搜索，因此它将使下一个处理此代码的人不会在办公桌上碰头
将$conference\u参与者
变量的值作为参考，注意foreach声明中的&
，因此无需担心数组的键
这将使$conference\u参与者完全符合您的要求。我从未见过这样声明的数组before@ScottMcGready这是5.4中新增的一种速记方式（我想这是版本号）。@chris85它绝对可怕，而且容易出现问题和混淆。当然是个人意见，根本不是对OP的攻击。你以后会使用单独的数组吗？如果你去掉标识符，就很难识别了。也许只是做一个数组？
<?php
$participants = [
[ 'calleridnum' => 1,
'callee' => 'yay'
],
[ 'calleridnum' => 2,
'callee' => 'yay'
],
[ 'calleridnum' => 3,
'callee' => 'yay'
]
];
$conferance_participants = [
[ 'uid' => 1,
'caller' => 'yay2',
'dit' => 'deze'
],
[ 'uid' => 2,
'caller' => 'test',
'dit' => 'wew'
]
];
$contacts = [
[ 'name' => 1,
'test' => 'yay2',
'limit' => 1
],
[ 'name' => 2,
'test' => 'yay2',
'limit' => 1
]
];
foreach ($participants as $participant=>$p) {
foreach ($conferance_participants as $conferance_participant=>$cp) {
foreach ($contacts as $contact=>$cs) {
if (($p['calleridnum'] == $cp['uid']) && ($cp['uid'] == $cs['name'])){
unset($contacts[$contact]['name'], $contacts[$contact]['test']);
unset($conferance_participants[$conferance_participant]['caller'], $conferance_participants[$conferance_participant]['dit']);
$conferance_participants[$conferance_participant] = array_merge(
$participants[$participant],
$conferance_participants[$conferance_participant],
$contacts[$contact]
);
$contacts[$contact]['name'] = $cs['name'];
}
}
}
}
echo "<pre>";
print_r($conferance_participants);
echo "</pre>";
Array
(
[0] => Array
(
[calleridnum] => 1
[callee] => yay
[uid] => 1
[limit] => 1
)
[1] => Array
(
[calleridnum] => 2
[callee] => yay
[uid] => 2
[limit] => 1
)
)
$keys = array_flip(['calleridnum', 'callee', 'uid', 'limit']);
$conferance_participants[$conferance_participant] =
array_intersect_key(
array_merge(
$participants[$participant],
$conferance_participants[$conferance_participant],
$contacts[$contact]
),
$keys
);
count($participants) * count($conferance_participants) * count($contacts);
foreach($conferance_participants as &$record) {
# find keys of corresponding array matches
$key_in_participants = _custom_search($record['uid'], $participants, 'calleridnum');
$key_in_contacts = _custom_search($record['uid'], $contacts, 'name');
# unset unwanted things
unset($record['caller'], $record['dit']);
# activate this code if you want to make false for unmatched records
/* ***********************************************************************
if($key_in_participants === false || $key_in_contacts === false) {
$record['calleridnum'] = $record['callee'] = $record['limit'] = false;
continue;
}
*********************************************************************** */
# setting required things
$record['calleridnum'] = $participants[$key_in_participants]['calleridnum'];
$record['callee'] = $participants[$key_in_participants]['callee'];
$record['limit'] = $contacts[$key_in_contacts]['limit'];
}
function _custom_search($id, $array, $key_to_search) {
foreach ($array as $key => $val) if($val[$key_to_search] === $id) return $key;
return false;
}