PHP: Replace Array Data - php

Question

I have an array of associative array, I will like to update the values in this array, hence I created a function that looks like this.
//The Array of Associative arrays
array (size=2)
0 =>
array (size=3)
'slang' => string 'Tight' (length=5)
'description' => string 'Means well done' (length=15)
'example-sentence' => string 'Prosper it Tight on that job' (length=28)
1 =>
array (size=3)
'slang' => string 'Sleet' (length=5)
'description' => string 'Means to send on long errand' (length=28)
'example-sentence' => string 'I am going to sleep sia' (length=23)
//The function
public function update($slang, $new)
{
array_map(function($data, $key) use($slang, $new)
{
if($data['slang'] == $slang)
{
$data[$key] = array_replace($data, $new);
}
}, UrbanWord::$data);
}
I tired running this but the original array will not update. I need help on how to go about fixing this please.
Thanks

Answer 1

You may use array_reduce instead of array_map as following:
public function update($array, $slang, $new)
{
return array_reduce($array, function ($result, $item) use ($slang, $new) {
if ($item['slang'] == $slang) {
$item = array_replace($item, $new);
}
$result[] = $item;
return $result;
}, array());
}
Usage:
UrbanWord::$data = $this->update(
UrbanWord::$data,
'Tight',
array('description' => 'another description')
);
var_dump($myUpdatedArray);
If you want to update it directly passing the UrbanWord::$data by reference you may try something like:
class UrbanWord
{
public static $data = array(
array(
'slang' => 'Test',
'Desc' => 'Frist Desc'
),
array(
'slang' => 'Test1',
'Desc' => 'Second Desc'
)
);
}
class MyClass
{
public function update(&$array, $slang, $new)
{
$array = array_reduce($array, function ($result, $item) use ($slang, $new) {
if ($item['slang'] == $slang) {
$item = array_replace($item, $new);
}
$result[] = $item;
return $result;
}, array());
}
}
$myClass = new MyClass();
$myClass->update(UrbanWord::$data, 'Test', array('Desc' => 'test'));
echo '<pre>';
var_dump(UrbanWord::$data);
echo '</pre>';