利用数组交集进行数据校验的编码

Question

我想检查输入到database.Checks中的数据如下所示

$implode1 = "cat, dog, chicken";

$implode2 = "cow, goat, cat";

如果变量$implode2中也包含变量$implode1中的猫，它应该会显示一条警告消息。如何针对上述问题进行编码？

请帮帮我：

Answer 1

您可以将字符串explode到数组，然后使用array_intersect返回这两个数组中都存在的值，例如：

$string1 = 'cat, dog, chicken';
$string2 = 'cow, goat, cat';

$compare = explode(', ', $string1);
$against = explode(', ', $string2);

$matches = array_intersect($compare, $against);

Answer 2

$implode1 = "cat, dog, chicken";
$implode2 = "cow, goat, cat";

$imp1 = explode(', ',$implode1);
$imp2 = explode(', ',$implode2);

foreach($imp1 as $val){
    if(in_array($val,$imp2)) {
        echo "$val is present in $implode2";
    }
}

Answer 3

循环第一个数组，并检查第二个数组中是否存在任何元素-如下所示：

foreach($implode1 as $val){
if(in_array($val,$implode2)) {

    echo "$val is exists in the implode2 array";

       }
}

哦，对不起，那只是些字符串。首先对它们进行分解：

arr_implode1 = explode(", ",$implode1)
arr_implode1 = explode(", ",$implode2)