Answers for "how to see if values match in an array php"

check if array has value php

$myArr = [38, 18, 10, 7, "15"];

echo in_array(10, $myArr); // TRUE
echo in_array(19, $myArr); // TRUE

// Without strict check
echo in_array("18", $myArr); // TRUE
// With strict check
echo in_array("18", $myArr, true); // FALSE

php get values that exist in both arrays

$a=["a","b","c","d","e"];
$b=["d","e","f","g"];
$inBothAndB = array_intersect($a, $b); // Array([3] => d [4] => e)