PHP比较两个数组，但第一个数组的所有值都需要在第二个

Question

再次 - 抱歉过去的愚蠢解释......我没有得到我的错误，这让我发疯......

所以我有两个数组——一个是普通数组，另一个是多维数组。但这也许无关紧要，因为我分解了两个要与数组进行比较的字符串...

这是我的代码：

<?php

$arr1 = ["folds" => '01,03,'];

if($arr1['folds'][strlen($arr1['folds'])-1] == ","){

    $arr1['folds'] = substr($arr1['folds'], 0, -1);

}

$check = explode(",", $arr1['folds']);

$arr2 = [

    ["Offer" => "Website", "folds" => '01'],

    ["Offer" => "Development", "folds" => '01,03,05,10,14,15,21,22,'],

    ["Offer" => "Testing", "folds" => '01,03,04,10,15,22'],

    ["Offer" => "Sales", "folds" => '01,03,10,22,']

];

$arr3 = [];

foreach($arr2 as $i_arr){

    if($i_arr['folds'][strlen($i_arr['folds'])-1] == ","){

        $i_arr['folds'] = substr($i_arr['folds'], 0, -1);

    }

    $tocheck = explode(",", $i_arr['folds']);

    foreach($check as $chk){

        if(in_array($chk, $tocheck)){

            $arr3[] = $i_arr;

        }

    }

}

print_r($arr3);

?>

所以我至少有两个数组（$check 和 $tocheck）- $check 内容搜索或过滤值就像你想命名的那样。$tocheck 来自于数据库，得到要过滤的信息。我的代码没有按照我的意愿执行 - 因为 in_array($check[x], $tocheck[y]) 检查 $check 中的所有值和 $tocheck 中的所有值 - 但是当只有一个值适合时它说“真的”。

我的挑战是当 $check 中的所有值也在 $tocheck 中时，只在 $arr3 中打印 $i_arr，而不是只打印一个...

有人有想法吗？

Answer 1

循环并$arr2检查strpos()：$arr1["folds"]<?php$arr1 = ["folds" => '02,04'];$arr2 = [&nbsp; &nbsp; ["Offer" => "Website", "folds" => '02'],&nbsp; &nbsp; ["Offer" => "Development", "folds" => '02,04,09']];$arr3 = [];foreach($arr2 as $i_arr){&nbsp; &nbsp; if(isset($i_arr["folds"]) && strpos($i_arr["folds"], $arr1["folds"]) > -1){&nbsp; &nbsp; &nbsp; &nbsp; $arr3[] = $i_arr;&nbsp; &nbsp; }}print_r($arr3);?>输出：Array(&nbsp; &nbsp; [0] => Array&nbsp; &nbsp; &nbsp; &nbsp; (&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [Offer] => Development&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; [folds] => 02,04,09&nbsp; &nbsp; &nbsp; &nbsp; ))https://paiza.io/projects/_0nC44WHlZJpkdLOjm1Tkw

Answer 2

这里的解决方案 - 也许它会帮助别人：<?php// Your code here!$arr1 = ["folds" => '01,03,'];if($arr1['folds'][strlen($arr1['folds'])-1] == ","){&nbsp; &nbsp; $arr1['folds'] = substr($arr1['folds'], 0, -1);}$check = explode(",", $arr1['folds']);$arr2 = [&nbsp; &nbsp; ["Offer" => "Website", "folds" => '03'],&nbsp; &nbsp; ["Offer" => "Development", "folds" => '01,03,05,10,14,15,21,22,'],&nbsp; &nbsp; ["Offer" => "Testing", "folds" => '01,03,04,10,15,22'],&nbsp; &nbsp; ["Offer" => "Sales", "folds" => '01,03,10,22,']];$use = "no";$arr3 = [];foreach($arr2 as $i_arr){&nbsp; &nbsp; if($i_arr['folds'][strlen($i_arr['folds'])-1] == ","){&nbsp; &nbsp; &nbsp; &nbsp; $i_arr['folds'] = substr($i_arr['folds'], 0, -1);&nbsp; &nbsp; }&nbsp; &nbsp; $tocheck = explode(",", $i_arr['folds']);&nbsp; &nbsp; foreach($check as $chk){&nbsp; &nbsp; &nbsp; &nbsp; if(in_array($chk, $tocheck)){&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $use = "yes";&nbsp; &nbsp; &nbsp; &nbsp; } else {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; $use = "no";&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; break;&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; }&nbsp; &nbsp; if($use == "yes"){&nbsp; &nbsp; &nbsp; &nbsp; $arr3[] = $i_arr;&nbsp; &nbsp; }}print_r($arr3);?>