I am using PHP & I have a multi dimensional array which I need to search to see if the value of a "key" exists and if it does then get the value of the "field". Here's my array:
Array
(
[0] => Array
(
[key] => 31
[field] => CONSTRUCTN
[value] => LFD_CONSTRUCTION_2
)
[1] => Array
(
[key] => 32
[field] => COOLING
value] => LFD_COOLING_1
)
)
I want to be able to search the array for the "key" value of 31. If it exists, then I want to be able to extract the corresponding "field" value of "CONSTRUCTN".
I've tried using array_search(31, $myArray) but it does not work...
function searchMultiArray($val, $array) {
foreach ($array as $element) {
if ($element['key'] == $val) {
return $element['field'];
}
}
return null;
}
And then:
searchMultiArray(31, $myArray);
Should return "CONSTRUCTN".
One-line solution using array_column and array_search functions:
$result = array_search(31, array_column($arr, 'key', 'field'));
print_r($result); // CONSTRUCTN
Or with simple foreach loop:
$search_key = 31;
$result = "";
foreach ($arr as $item) { // $arr is your initial array
if ($item['key'] == $search_key) {
$result = $item['field'];
break;
}
}
print_r($result); // CONSTRUCTN
I haven't tested, but I think this should do it.
function searchByKey($value, $Array){
foreach ($Array as $innerArray) {
if ($innerArray['key'] == $value) {
return $innerArray['field'];
}
}
}
Then calling searchByKey(31, $myArray); should return 'CONSTRUCTN'.