我有一个名为$filtes的对象数组，如下所示：
Array
(
[0] => stdClass Object
(
[title] => Type
[alias] => type
[id] => 14
[parent_id] => 9
[subs] => Array
(
[0] => stdClass Object
(
[title] => car
[alias] => car
[id] => 15
[parent_id] => 14
)
)
)
[1] => stdClass Object
(
[title] => Model
[alias] => model
[id] => 18
[parent_id] => 9
[subs] => Array
(
[0] => stdClass Object
(
[title] => XF
[alias] => xf
[id] => 19
[parent_id] => 18
)
[1] => stdClass Object
(
[title] => XJ
[alias] => xj
[id] => 20
[parent_id] => 18
)
[2] => stdClass Object
(
[title] => XK
[alias] => xk
[id] => 21
[parent_id] => 18
)
[3] => stdClass Object
(
[title] => F-TYPE
[alias] => f-type
[id] => 22
[parent_id] => 18
)
)
)
[2] => stdClass Object
(
[title] => Condition
[alias] => condition
[id] => 24
[parent_id] => 9
[subs] => Array
(
[0] => stdClass Object
(
[title] => new
[alias] => new
[id] => 24
[parent_id] => 9
)
)
)
)
检查单词是否存在于$filters[$i]->title和$filters[%i]->subs[$j]->title中的最佳做法是什么。速度在检查中非常重要。
创建一个简单的递归函数：
function myArrayContainsWord(array $myArray, $word) {
foreach ($myArray as $element) {
if ($element->title == $word ||
(!empty($myArray['subs']) && myArrayContainsWord($myArray['subs'], $word)) {
return true;
}
}
return false;
}
然后这样称呼它：
if (myArrayContainsWord($filtes, $title)) {
...
}
我刚刚升级了@zander rootman的版本，我添加了一个字段名选项。
<?php
function recursive_array_search($needle,$haystack, $field) {
foreach($haystack as $key=>$value) {
$current_key=$key;
if($needle==$value->$field() OR (is_array($value->$field() ) && recursive_array_search($needle,$value->$field(),$field ) != false)) {
return true;
}
}
return false;
}
// Example of use
$result = recursive_array_search('2', $ressourceInfo->packs(), "idSubscription");
?>
PHP in_array和/或PHP array_key_exists。。。但是，您使用的是多维数组，所以我不确定您希望搜索的范围有多广。
<?php
function recursive_array_search($needle,$haystack) {
foreach($haystack as $key=>$value) {
$current_key=$key;
if($needle===$value OR (is_array($value) && recursive_array_search($needle,$value) !== false)) {
return $current_key;
}
}
return false;
}
在PHP文档中找到此函数：http://www.php.net/array_search