dongpeixiong5943 2017-10-12 06:43
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如何使用stdClass在数组中搜索?

I have array with stdClasses:

$a = new \stdClass();
$a->name = "aaa";
$a->type = "1";

$b = new \stdClass();
$b->name = "bbb";
$b->type = "2";

$c = new \stdClass();
$c->name = "ccc";
$c->type = "1";

$array = array($a, $b, $c);

$count = 0;

foreach ($array as $arr) {
    if ($arr->type == 1) {
        $count++;
    }
}

Is better way to count types with value 1 than foreach? I would like counting many values so foreach is uncomfortable.

Maybe array_search or array_map?

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  • duanfuxing2212 2017-10-12 06:50
    关注

    You can use array_filter:

    http://php.net/manual/tr/function.array-filter.php

    example:

    $a = new \stdClass();
    $a->name = "aaa";
    $a->type = "1";
    
    $b = new \stdClass();
    $b->name = "bbb";
    $b->type = "2";
    
    $c = new \stdClass();
    $c->name = "ccc";
    $c->type = "1";
    
    $array = array($a, $b, $c);
    
    $count = count(array_filter($array, function($d){
         return $d->type === "1";
    }));
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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