remove duplicate array php - php

Question

I have script like this
foreach ($onerow as $onekey => $dt ){
$arr = array();
foreach($row as $classkey => $classfoto):
$cek_class_foto = explode("/",$classfoto->name);
if($dt->foto_naam!=$cek_class_foto[1]){
$arr = array($dt->foto_naam);
print_r(array_unique($arr));
}
endforeach;
}
the output like this
Array ( [0] => _b101203.jpg )
Array ( [0] => _b101203.jpg )
my question is, how to remove this duplicates array?
Thank you

Answer 1

You are overwriting $arr for each iteration.
foreach ($onerow as $onekey => $dt ){
$arr = array();
foreach($row as $classkey => $classfoto):
$cek_class_foto = explode("/",$classfoto->name);
if($dt->foto_naam!=$cek_class_foto[1]){
$arr[] =$dt->foto_naam;
}
endforeach;
}
$arr = array_unique($arr);

Answer 2

$array1 = Array
(
'0' => Array
(
'messageId' => 9,
'userId' => 47,
'petId' => 68,
'message' => 'how hello',
'senderId' => 48,
'senderPetId' => 66,
'messageCreateTime' => '2015-07-31 11:44:59'
),
'1' => Array
(
'messageId' => 8,
'userId' => 49,
'petId' => 69,
'message' => 'pppppppppp',
'senderId' => 48,
'senderPetId' => 67,
'messageCreateTime' => '2015-07-31 11:15:16'
),
'2' => Array
(
'messageId' => 6,
'userId' => 48,
'petId' => 67,
'message' => 'gggg',
'senderId' => 49,
'senderPetId' => 69,
'messageCreateTime' => '2015-07-31 11:13:42'
),
'3' => Array
(
'messageId' => 2,
'userId' => 48,
'petId' => 67,
'message' => 'aaaaaaaa',
'senderId' => 47,
'senderPetId' => 68,
'messageCreateTime' => '2015-07-31 11:15:33'
)
);
/* code for removing last duplicate array within result array by KS */
/* matching between : userId, petId, senderId, senderPetId */
$temp_array = array();
$i = 0;
foreach($array1 as $key=>$value)
{
$FLAG = FALSE;
$temp_array = $array1[$key];
if($i==0)
{
$final_array[] = $temp_array;
}
else
{
for($j=0;$j<count($final_array);$j++)
{
if(($final_array[$j]['userId']==$temp_array['userId'] && $final_array[$j]['petId']==$temp_array['petId'] && $final_array[$j]['senderId']==$temp_array['senderId'] && $final_array[$j]['senderPetId']==$temp_array['senderPetId']) ||
($final_array[$j]['userId']==$temp_array['senderId'] && $final_array[$j]['petId']==$temp_array['senderPetId'] && $final_array[$j]['senderId']==$temp_array['userId'] && $final_array[$j]['senderPetId']==$temp_array['petId']))
{
$FLAG = TRUE;
}
}
if($FLAG == FALSE){
$final_array[] = $temp_array;
}
}
$i++;
}
print('<pre>');
print_r($final_array);
enter code here