Merge array with same value [duplicate] - php

Question

This question already has answers here:
PHP Unique Values from Column in Array
(5 answers)
Closed 5 months ago.
How to marge array result with same value, i was try array_unique but seems does not work for me
Code:
$row_content = mysql_fetch_assoc($sql);
$array = unserialize($row_content['content_id']);
foreach($array as $row) {
print_r($row);
}
Here is result
Array
(
[0] => v
[1] => 2040
)
Array
(
[0] => v
[1] => 526
)
Array
(
[0] => v
[1] => 200
)
Array
(
[0] => p
[1] => 2040
)
Array
(
[0] => p
[1] => 600
)
Need to merge [1] or 2040 in this example, also value V or P it does not matter here
Edit:
This is what i need to get as result
Array
(
[1] => 200
)
Array
(
[1] => 526
)
Array
(
[1] => 600
)
Array
(
[1] => 2040
)

Answer 1

If I don't misunderstood your requirements then this is what you need.
<?php
$ar1 = array(array('v',2040),array('v',526),array('v',200),array('v',2040),array('p',600));
$result = [];
foreach($ar1 as $k=>$v){
$result[]=$v[1];
}
$unique_v = array_unique($result);
print '<pre>';
print_r($unique_v);
print '</pre>';
?>
DEMO: https://3v4l.org/sGLlc

Answer 2

I don't exactly get what you are trying to say. But if you want to merge/add all the values of "p" and "v". You can do it like this:
$array = array(array('v',2040),array('v',526),array('v',200),array('v',2040),array('p',600));
$keeper = array();
foreach($array as $row){
if(array_key_exists($row[0],$keeper)){
$keeper[$row[0]] += $row[1];
}else{
$keeper[$row[0]] = $row[1];
}
}