Find matching key in two associate arrays? - php

Question

I'm using codeigniter and I have a returned associated array from db like this:
$result = ['name'=>'john', 'author'=>'smith', 'year'=>2011 ];
And a long list of translated title for the keys saved as an array like this:
$lang = ['name'=>'名字', 'author'=>'作者', 'year'=>'年份', ... ];
I wanted to compare the key of $result to $lang, if a key was used in $result, get its translated title. And at the end, construct an array including all three English title, translated title, and the value:
$lang_result = ['name' =>['名字', 'john'],
'author' =>['作者', 'smith'],
'year' =>['年份', 2011] ]
$data['result'] = $lang_result;
I'm storing into this format because once I passed in these data into views, I wanted to be able to call each one by name
echo "{$result['name'][0]}: {$result['name'][1]} "; // 名字: john
echo "{$result['author'][0]}: {$result['author'][1]} ";
So far I could only achieve this by using foreach -> switch statement
$lang_result = [];
foreach ($result as $key=>$value ) {
switch （$key）{
case 'name':
array_push ($lang_result, [ $key => ['名字', $value] ]);
break;
case 'author':
array_push ($lang_result, [ $key => ['作者', $value] ]);
break;
}
}
But as the translated array gets longer, the switch statement will be ridiculously out of hands. What is a better way to simplify this?

Answer 1

As Dan mentioned array_merge_recursive may be what you want. In case you have other logic you need to implement here it is unrolled:
$result = ['name'=>'john', 'author'=>'smith', 'year'=>2011];
$lang = ['name'=>'名字', 'author'=>'作者', 'year'=>'年份'];
$lang_result = [];
foreach ($result as $key=>$value) {
if (array_key_exists($key, $lang)) {
$lang_result[$key] = [$lang[$key], $value];
}
}
// these are the same (for now)
print_r($lang_result);
print_r(array_merge_recursive($lang, $result));

Answer 2

Try using array_merge_recursive
$newArray = array_merge_recursive($result, $lang);

Answer 3

You need to store the keys you want into an array and then do it like so.
$lang_result = array();
$result = ['name'=>'john', 'author'=>'smith', 'year'=>2011 ];
$lang = ['name'=>'名字', 'author'=>'作者', 'year'=>'年份'];
$keys = array('name','author','year');
foreach($keys AS $key){
if(isset($result[$key]) && isset($lang[$key])){
$lang_result[$key] = array($result[$key],$lang[$key]);
}
}