create new array from 2 other arrays - php

Question

I have 2 arrays that contain user details, including emails addresses. I would like to create a new array that contain only the user details where email that appear in both arrays. is there any function that do that?
I tried to use "array_intersect_assoc". no good...
$newGroupsArray = array_intersect ($firstArray , $secondArray );
for instance, - in this example only "nathalie" details should be in the new array.
Is there any function that do that?
$firstArray = array( 0 => Array ( 'name' => 'ronen', 'email' => 'ronen$Experts.com' , 'contactID' => 43 ) ,
1 => Array ( 'name' => 'shlomig' , 'email' => 'shlomig$tours.co.il' ,'contactID' => 28 ) ,
2 => Array ( 'name' => 'nathalie', 'email' => 'nathalie$obra.co.il', 'contactID' => 57 )
);
$secondArray = array(0 => Array ( 'name' => 'nathalie', 'email' => 'nathalie$obra.co.il', 'contactID' => 57 ) ,
1 => Array ('name' => 'roi' , 'email' => 'roi$mail.com' ,'contactID' => 99 )
);

Answer 1

You can combine array_values and array_intersect_key to get desired result.
$Array1 = array();
$Array2 = array();
foreach ($firstArray as $value)
{
$Array1[$value['email']] = $value;
}
foreach ($secondArray as $value)
{
$Array2[$value['email']] = $value;
}
$matches = array_values(array_intersect_key($Array1, $Array2));
print_r($matches);
You can also use foreach loops and check the data using an if condition as below.
$matches = array();
foreach($firstArray as $key => $value)
{
foreach($secondArray as $value1)
{
if($value['email'] === $value1['email'])
$matches[] = $value;
}
}
print_r($matches);