Question

在foreach循环中，我的substr输出之后如何删除重复项？当前，它以倍数输出剥离的字符串。我希望输出只列出一个唯一的“ $ workername”，以避免重复出现

foreach ($block as $blocks) {
    $worker = $block['pools']['snowgem']['workers'];
    foreach($worker as $workers) {
        //$workers = array_unique($workers);
        $workername = substr($workers['name'], 0, strpos($workers['name'], "."));
        echo $workername."<br>";
    }
}

示例输出：

s1a5Ja3hPfP8FZgABzN8nYSU2uFgKetDTtL
s1a5Ja3hPfP8FZgABzN8nYSU2uFgKetDTtL
s1aKn13it5hsXHdUhFUXmp8f2Wj2tqo1CAi
s1aKn13it5hsXHdUhFUXmp8f2Wj2tqo1CAi
s1aKn13it5hsXHdUhFUXmp8f2Wj2tqo1CAi
s1aKn13it5hsXHdUhFUXmp8f2Wj2tqo1CAi
s1djunsw5pgbodthbrq9zGeEyKzDVvpSTEF
s1drJbyRARtXowrj4718TftHDo23RDPmKwr
s1dvGQ5d4pV4bhHBbfTUdvFHjgxgWtexm3d
s1fbJX6RRC4F4L3DxqXAKw8qmXmXw823vV1
s1hfcfXKP6vCBpAHyasEteVDrg3aQMgJZnA
s1hfcfXKP6vCBpAHyasEteVDrg3aQMgJZnA
s1hfcfXKP6vCBpAHyasEteVDrg3aQMgJZnA

转储：

Array
(
    [pools] => Array
        (
            [snowgem] => Array
                (
                    [workers] => Array
                        (
                            [s1a5Ja3hPfP8FZgABzN8nYSU2uFgKetDTtL.MESGOrig2] => Array
                                (
                                    [name] => s1a5Ja3hPfP8FZgABzN8nYSU2uFgKetDTtL.MESGOrig2
                                    [diff] => 35226
                                    [shares] => 21.5
                                    [invalidshares] => 0
                                    [currRoundShares] => 12.9
                                    [currRoundTime] => 53.843
                                    [hashrate] => 307805989.547
                                    [hashrateString] => 615.61 Sol/s
                                    [luckDays] => 0.244
                                    [luckHours] => 5.862
                                    [paid] => 0
                                    [balance] => 0
                                )

                            [s1aKn13it5hsXHdUhFUXmp8f2Wj2tqo1CAi.1060X4] => Array
                                (
                                    [name] => s1aKn13it5hsXHdUhFUXmp8f2Wj2tqo1CAi.1060X4
                                    [diff] => 986
                                    [shares] => 3.57442495
                                    [invalidshares] => 0
                                    [currRoundShares] => 1.11351463
                                    [currRoundTime] => 103.943
                                    [hashrate] => 51173460.8742
                                    [hashrateString] => 102.35 Sol/s
                                    [luckDays] => 1.469
                                    [luckHours] => 35.260
                                    [paid] => 0
                                    [balance] => 0
                                )

Answer 1

使用数组存储输出的值，并检查是否已经输出了该值

    $outputed_values = array();
    foreach ($block as $blocks) {
        $worker = $block['pools']['snowgem']['workers'];
        foreach($worker as $workers) {
            //$workers = array_unique($workers);
            $workername = substr($workers['name'], 0, strpos($workers['name'], "."));
            if (!in_array($workername, $outputed_values)){
               echo $workername."<br>";
               array_push($outputed_values, $workername);
            }
        }
     }

Answer 2

您已经在array_unique中使用了正确的功能。只需将您的子字符串存储在数组中，然后获取唯一值并输出即可。

foreach ($block as $blocks) {
    $worker = $block['pools']['snowgem']['workers'];
    foreach($worker as $workers) {
        //$workers = array_unique($workers);
        $workername = substr($workers['name'], 0, strpos($workers['name'], "."));
        $name_array[] = $workername;
    }
    $name_array = array_unqiue($name_array);
    echo "<pre>";
    print_r($name_array);
    echo "</pre>";
}

Answer 3

似乎没有必要使用外部foreach循环，因为顶层只有一个键。您可以直接转到嵌套的“工人”键以获取工人。

$workers = $block['pools']['snowgem']['workers'];

然后，您可以在对格式重新格式化后从该数组获得的名称列表中使用array_unique。

$unique_names = array_unique(array_map(function($worker) {
    return substr($worker['name'], 0, strpos($worker['name'], "."));
}, $workers));

PHP在substr结果后删除foreach中的重复项

3 个答案: