get two arrays. The first array is $arr1
string(4)"10000","10003","10004","10006" then calculate the length of the arr2 $arr2
$longth2 = count ( $arr2 );
for ( $I = 0; $I < $longth2 ; $I PP) {
}
but I don"t know how to compare the results next.
< H1 > the desired result is < / H1 > $arr2 each element exists in the $arr1 location, the number will only appear once, no idea, ask for advice! Thank you
array_intersect() //
array_intersect_assoc() //
array_intersect_key() // array_intersect
use the function array_intersect function
example:
$a1 = [1,2,3,4,5,6,7,8,9];
$a2 = [3,6];
$r = array_intersect($a1, $a2);
$r = [2 => 3, 5 => 6]; $a1array_intersect()array_intersect ()
array_intersect -calculates the intersection of the array
array array_intersect (array $array1, array $array2 [, array $...])
array_intersect () returns an array that contains all the values that appear in array1 as well as in all other parameter arrays. Note that the key name remains the same.
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