Sorting and merge associative array (PHP) - php

Question

I have 2 associative arrays:
[0] => Array (
[time] => 09:00:00
[name] => To do something 1
)
[1] => Array (
[time] => 09:30:00
[name] => To do something 2
)
[2] => Array (
[time] => 10:00:00
[name] => To do something 3
)
and
[0] => Array (
[time] => 09:00:00
)
[1] => Array (
[time] => 09:15:00
)
[2] => Array (
[time] => 09:30:00
)
[3] => Array (
[time] => 09:45:00
)
[4] => Array (
[time] => 10:00:00
)
Need to do another associative array:
if the field [time] in second array equals field [time] in first array then add [name];
if field [time] in second array not equals field [time] in first array then add empty [name].
Should look like this:
[0] => Array (
[time] => 09:00:00
[name] => To do something 1
)
[1] => Array (
[time] => 09:15:00
[name] =>
)
[2] => Array (
[time] => 09:30:00
[name] => To do something 2
)
[3] => Array (
[time] => 09:45:00
[name] =>
)
[4] => Array (
[time] => 10:00:00
[name] => To do something 3
)

Answer 1

After some puzzling I made it work for you.
This is the code you can use:
$array3 = array();
foreach ($array2 as $key2 => $value2){
$found = false;
foreach ($array1 as $key1 => $value1){
if ($array1[$key2]['time'] == $array2[$key2]['time']) {
$array3[$key2]['time'] = $array1[$key1]['time'];
$array3[$key2]['name'] = $array1[$key1]['name'];
$found = true;
}
}
if (!$found){
//add
$array3[$key2]['time'] = $array2[$key2]['time'];
$array3[$key2]['name'] = "";
}
}
print_r($array3);