CODEWITHSUNDEEP
phparraysmultidimensional-arrayfilter
Jaylen
Jaylen

Reputation: 40289

Access an accompanying value in the first qualifying row of a 2d array

I am trying to find a value in array by searching on a different column value.

This is my array:

Array
(
    [0] => Array
        (
            [triggerOn] => 07/19/2013 04:32 PM
            [isAppointment] => 0
            [engine_id] => 112
        )
    [1] => Array
        (
            [triggerOn] => 07/26/2013 04:32 PM
            [isAppointment] => 1
            [engine_id] => 111
        )
)

I am trying to find the value of triggerOn when engine_id equals 111?

So if I have the value 111 then I need to return 07/26/2013 04:32 PM.

If I have the value 112, then I need to return 07/19/2013 04:32 PM.

How can I do this?

This is what I have tried so far:

function returnValueOfArray($arr, $val) {
    foreach ($arr as $v) {
        foreach ($v as $sub) {
            if ($val == $sub)
                return $v['triggerOn'];
        }
    }
    return 'Nothing Found';
}

but this is not working.

Upvotes: 0

Views: 63

Answers (4)

mickmackusa
mickmackusa

Reputation: 47864

As of PHP8.4, developers are no longer confined to manually writing a conditionally broken loop to search array multidimensional array. array_find() allows the efficiency of conditionally broken array traversal with a native function.

If the qualifying condition is never satisfied, null is returned. Attempt to access the desired element in the returned value; if it cannot be accessed, then default to whatever value you like. Demo

$engineId = 111;
var_export(
    array_find(
        $array,
        fn($row) => $row['engine_id'] == $engineId
    )['triggerOn'] ?? 'Nothing Found'
);

Upvotes: 0

Mehdi Karamosly
Mehdi Karamosly

Reputation: 5428

another way to do is :

// let's assume your array is called $myArray


for($i=0; $i < count($myArray) ; $i++ ){
  if($myArray[$i]['engine_id'] == '111'){
    return  $myArray[$i]['triggerOn'];
    break;
  }
}

in a function it gives this :

function find_engine($engine, $myArray){
    for($i=0; $i < count($myArray) ; $i++ ){
      if($myArray[$i]['engine_id'] == $engine){
        return  $myArray[$i]['triggerOn'];
        break;
      }
    }
}

Upvotes: 0

user1646111
user1646111

Reputation: 

function search_in_array($array, $engine_id){
 foreach($array as $key => $val){
  if($engine_id == $val['engine_id']){
   return $val['triggerOn'];
  }
 }
}

Upvotes: 1

exussum
exussum

Reputation: 18550

function findEngine_id($engine, $array){
    foreach($array as $item){
        if($item['engine_id'] == $engine) return $item['triggerOn'];

    }
    return false;
}
echo findEngine_id(111,$array);

Upvotes: 3

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