Search values on multidimensional array then display the result - php

Question

I'm trying to retrieve the values on multidimensional arrays using a search like function.
$rows = array(
array(
'Name'=>'City of God',
'Year'=>'2002',
'Rating'=>'10'
),
array(
'Name'=>'The Great Escape',
'Year'=>'1963',
'Rating'=>'9'
),
array(
'Name'=>'Dune',
'Year'=>'1984',
'Rating'=>'6'
),
array(
'Name'=>'Superbabies: Baby Geniuses 2',
'Year'=>'2004',
'Rating'=>'1'
)
);
So for example, if you want to search the array with a value of Name with 'City of God' and Year with '1963' the expected output should be like this
$rows = array(
array(
'Name'=>'City of God',
'Year'=>'2002',
'Rating'=>'10'
),
array(
'Name'=>'The Great Escape',
'Year'=>'1963',
'Rating'=>'9'
),
);
Currently, the function I am using is this
function multiSearch(array $array, array $pairs)
{
$found = array();
foreach ($array as $aKey => $aVal) {
$coincidences = 0;
foreach ($pairs as $pKey => $pVal) {
if (array_key_exists($pKey, $aVal) && $aVal[$pKey] == $pVal) {
$coincidences++;
}
}
if ($coincidences == count($pairs)) {
$found[$aKey] = $aVal;
}
}
return $found;
}
However, using this function only capable of retrieving data of the same array key. So for example if I search the value of Name of 'City of God'
$x = multiSearch($rows, array('Name' => 'City of God')
This will display the correct output like this
$rows = array(
array(
'Name'=>'City of God',
'Year'=>'2002',
'Rating'=>'10'
),
);
Unfortunately, if you try to use, 'Name' => 'City of God' and 'Year' => '1963'
It will not display any output. I'm stuck on figuring out on displaying the correct output, any ideas would be appreciated

Answer 1

Try this :
$datas = array(
array(
'Name'=>'City of God',
'Year'=>'2002',
'Rating'=>'10'
),
array(
'Name'=>'The Great Escape',
'Year'=>'1963',
'Rating'=>'9'
),
array(
'Name'=>'Dune',
'Year'=>'1984',
'Rating'=>'6'
),
array(
'Name'=>'Superbabies: Baby Geniuses 2',
'Year'=>'2004',
'Rating'=>'1'
)
);
$search = array(
'Name' => 'Dune',
'Year' => '2004'
);
$output = array();
foreach ($datas as $key1 => $row) {
foreach ($row as $key2 => $value) {
if($search[$key2] == $value) {
// if(stristr($value, $search[$key2]) !== FALSE) { // if you want to search
$output[] = $datas[$key1];
break;
}
}
}
echo "<pre>"; print_r($output); exit;
Output:
Array
(
[0] => Array
(
[Name] => Dune
[Year] => 1984
[Rating] => 6
)
[1] => Array
(
[Name] => Superbabies: Baby Geniuses 2
[Year] => 2004
[Rating] => 1
)
)

Answer 2

If you need OR, as you mentioned in your question, you then need to see if at least one coincidence happened:
if ($coincidences > 0) {
$found[$aKey] = $aVal;
}
This way, both entries:
$rows = array(
array(
'Name'=>'City of God',
'Year'=>'2002',
'Rating'=>'10'
),
array(
'Name'=>'The Great Escape',
'Year'=>'1963',
'Rating'=>'9'
),
);
will be matched.

Answer 3

Modify the search function to this - works for both the cases mentioned:
function multiSearch($rows, $value) {
$newArr = array();
foreach ($rows as $row) {
foreach ($value as $key => $val) {
if (isset($row[$key]) && $row[$key] == $val) {
$newArr[] = $row;
}
}
}
return $newArr;
}
Calling with one or two values produces the required output -
$x = multiSearch($rows, array('Name' => 'City of God'));
$x = multiSearch($rows, array('Name' => 'City of God', 'Year' => '1963'));
//returns $rows containing this pair

Answer 4

Take a look on my suggestion
function search ($storage, $criteria)
{
return array_filter(
$storage,
function ($row) use ($criteria) {
foreach ($criteria as $key => $value) {
if ($row[$key] === $value) {
return true;
}
}
}
);
}
$result = search($datas, $search);
/**
* $result = [
* 2 => [
* 'Name' => 'Dune'
* 'Year' => '1984'
* 'Rating' => '6'
* ],
* 3 => [
* 'Name' => 'Superbabies: Baby Geniuses 2'
* 'Year' => '2004'
* 'Rating' => '1'
* ]
* ];
*/

Answer 5

what about a recursive call?
function recursiveInArray ($needle, $array) {
$status = false;
foreach($array as $value) {
if(is_array($value)) {
recursiveInArray($needle, $value);
} else {
$status = ($needle == $value);
}
}
return $status;
}
i know its abstract, but should help you working with multi dimensional searching