Compare element in array and loop through each php - php

Question

I want to compare a value of data to a list of element which I had retrieved from php array(decoded json).
First,
This is the first array:
Array1
(
[0] => Array
(
[member_id] => 3
[member_card_num] => 2013011192330791
[member_barcode] => 2300067628912
)
[1] => Array
(
[member_id] => 4
[member_card_num] => 2328482492740000
[member_barcode] => 3545637000
)
[2] => Array
(
[member_id] => 2
[member_card_num] => 40001974318
[member_barcode] => 486126
)
[3] => Array
(
[member_id] => 1
[member_card_num] => 91001310000057698
[member_barcode] => 000057698
)
)
This is the second Array:
Array2
(
[0] => Array
(
[member_id] => 2
[member_card_num] => 40001974318
[member_barcode] => 486126
)
)
Second,
I had retrieved the (member_barcode) which I required.
Here is the code:
For Array1:
foreach ($decode1 as $d){
$merchant_barcode = $d ['member_barcode'];
echo $merchant_barcode;
}
For Array2:
foreach ($decode2 as $d2){
$user_barcode = $d2 ['member_barcode'];
echo $user_barcode;
}
Then,
I get this output():
For Array1(merchant_barcode):
2300067628912
3545637000
486126
000057698
For Array2(user_barcode):
486126
The question is, I would to check and compare whether the user_barcode in Array2(486126) is exist/match to one of the merchant_barcode in Array1.
This is my code,
but it only compare the user_barcode in Array2 to the last element(000057698) in Array1,
I want it to loop through each n check one by one. How can I do that?
public function actionCompareBarcode($user_barcode, $merchant_barcode){
if(($user_barcode) == ($merchant_barcode)){
echo "barcode exist. ";
}
else{
echo "barcode not exist";
}
}
In this case, the output I get is "barcode not exist", but it should be "barcode exist".
Anyone can help? Appreciate that. Im kinda new to php.

Answer 1

You could use a nested loop like:
foreach ($decode2 as $d2)
{
$user_barcode = $d2 ['member_barcode'];
foreach ($decode1 as $d)
{
$merchant_barcode = $d ['member_barcode'];
if ($merchant_barcode == $user_barcode)
{
echo "Match found!";
}
else
{
echo "No match found!";
}
}
}

Answer 2

<?
$a = array(
array(
'member_id' => 3,
'member_card_num' => '2013011192330791',
'member_barcode' => '2300067628912',
),
array(
'member_id' => 4,
'member_card_num' => '2328482492740000',
'member_barcode' => '3545637000',
),
array(
'member_id' => 2,
'member_card_num' => '40001974318',
'member_barcode' => '486126',
),
array(
'member_id' => 1,
'member_card_num' => '91001310000057698',
'member_barcode' => '000057698',
)
);
$b = array(
array(
'member_id' => 2,
'member_card_num' => '40001974318',
'member_barcode' => '486126',
)
);
array_walk($a, function($item) use($b) {
echo ($b['0']['member_barcode'] == $item['member_barcode'] ? "found" : NULL);
});
?>

Answer 3

I'd use array_uintersect() to calculate if those multidimensional arrays have a common element:
<?php
$a = array(
array(
'member_id' => '3',
'member_card_num' => '2013011192330791',
'member_barcode' => '2300067628912',
),
array(
'member_id' => '2',
'member_card_num' => '40001974318',
'member_barcode' => '486126',
)
);
$b = array(
array(
'member_id' => '2',
'member_card_num' => '40001974318',
'member_barcode' => '486126',
)
);
$match = array_uintersect($a, $b, function($valueA, $valueB) {
return strcasecmp($valueA['member_barcode'], $valueB['member_barcode']);
});
print_r($match);

Answer 4

Try calling that method as you are looping through Array1 and comparing the user_barcode to every value

Answer 5

You can compare two array this way too:
$per_arr = array();
$permissions = array()
foreach ($per_arr as $key => $perms) {
if(isset($permissions[$key]['name'])){
echo $per_arr[$key]['name']; //matched data
}else{
echo $per_arr[$key]['name']; //not matched data
}
}