Compare values using strpos - PHP - php

Question

I am trying to return the user_id if value matches with any comma separated value, I am using strpos but I don't why is it not working with 3rd case:
To Compare: (This value is stored in $myArray variable)
Array
(
[0] => cloud
[1] => ai
[2] => test
)
Compare with: (This value is stored in $array_meta_values variable)
Array
(
[0] => Array
(
[tags] => cloud,ai
[user_id] => 1
)
[1] => Array
(
[tags] => cloud,ai,test
[user_id] => 108
)
[2] => Array
(
[tags] => storage,backup,ai
[user_id] => 101
)
)
function searchForId($meta_value, $array)
{
foreach ($array as $key => $val) {
if (strpos($val['tags'], $meta_value)) {
return $val['user_id'];
}
}
}
foreach ($myArray as $usertags) {
$userids[] = searchForId($usertags, $array_meta_values);
}
print_r($userids);
Getting this Output:
Array
(
[1] => 1
[2] => 108
)
It was supposed to add 101 as third element in output array but don't know why it is not working.
Any help appreciated.

Answer 1

Hi so I tried to replicate you question,
$existing = ['cloud', 'ai', 'test'];
$checker = [
array(
"tags" => "cloud,ai",
"user_id" => 1
),
array(
"tags" => "cloud,ai,test",
"user_id" => 108
),
array(
"tags" => "storage,backup,ai",
"user_id" => 101
)
];
function searchForId($meta_value, $array)
{
$ret_array = [];
foreach ($array as $val) {
$et = explode(",", $val['tags']);
if (in_array($meta_value, $et)) {
$ret_array[] = $val['user_id'];
}
}
return $ret_array;
}
foreach ($existing as $usertags) {
$userids[$usertags][] = searchForId($usertags, $checker);
}
echo "<pre>";
print_r($userids);
Is this what you looking for?

Answer 2

Your question is quite unclear, but I'll try with this one:
<?php
$myArray = array('cloud', 'ai', 'test');
$array_meta_values = array(
array(
'tags' => 'cloud,ai',
'user_id' => 1,
),
array(
'tags' => 'cloud,ai,test',
'user_id' => 108,
),
array(
'tags' => 'storage,backup,ai',
'user_id' => 101,
),
);
$userids = [];
foreach ($myArray as $value) {
foreach ($array_meta_values as $array) {
$arrayValues = explode(',', $array['tags']);
if (in_array($value, $arrayValues)) {
$userids[$value][] = $array['user_id'];
}
}
}
echo '<pre>';
print_r($userids);
Output:
Array
(
[cloud] => Array
(
[0] => 1
[1] => 108
)
[ai] => Array
(
[0] => 1
[1] => 108
[2] => 101
)
[test] => Array
(
[0] => 108
)
)