我试图创建一个使用其任何变量来输出数字的数组

Question

if any of the following a,b, or c is in an array $value = 1; if any of the following d, e, or f is in an array $value = 2; Any suggestions?

EDIT Im asking this incorrectly $arr1=array('a','b','c'); If $mine = anything in $arr1 then $value = 1;

Answer 1

You want in_array():

$arr1 = array('a','b','c');

$mine = 'b';

if(in_array($mine, $arr1)) {
    $value = 1;
}