John Davidson

Message:

This is my array.

array (

  0 => 

  (object) array(

     'per_unit_price' => NULL,

     'code' => 'dynamic_labour_cost',

     'text_value' => '1000',

  ),

  1 => 

  (object) array(

     'per_unit_price' => NULL,

     'code' => 'dynamic_metal_weight',

     'text_value' => '10',

  ),

  2 => 

  (object) array(

     'per_unit_price' => NULL,

     'code' => 'dynamic_stone_carat',

     'text_value' => '10',

  ),

  3 => 

  (object) array(

     'per_unit_price' => NULL,

     'code' => 'dynamic_stone2_carat',

     'text_value' => '10',

  ),

  4 => 

  (object) array(

     'per_unit_price' => '10.00',

     'code' => 'dynamic_metal',

     'text_value' => NULL,

  ),

  5 => 

  (object) array(

     'per_unit_price' => '20.00',

     'code' => 'dynamic_stone',

     'text_value' => NULL,

  ),

  6 => 

  (object) array(

     'per_unit_price' => '50.00',

     'code' => 'dynamic_stone2',

     'text_value' => NULL,

  ),

)

In short,

Let's take an example =

I want to multiply => array[1]['text_value'] * array[4]['per_unit_price']



Because
array[1]['code'] = dynamic_metal_weight is substring of array[4]['code'] = dynamic_metal

As all code are dynamic so I cannot hard code condition.

And I tried using for each [scan all the array] but It will take a lot of time by traditional loops.

Please guide me.

---

My Answer:
One efficient way to search for a substring in an array is to use array_filter() function along with a custom callback function. Here's an example code snippet to achieve this:

php
// Your array
$array = [
(object) ['per_unit_price' => NULL, 'code' => 'dynamic_labour_cost', 'text_value' => '1000'],
(object) ['per_unit_price' => NULL, 'code' => 'dynamic_metal_weight', 'text_value' => '10'],
(object) ['per_unit_price' => NULL, 'code' => 'dynamic_stone_carat', 'text_value' => '10'],
(object) ['per_unit_price' => NULL, 'code' => 'dynamic_stone2_carat', 'text_value' => '10'],
(object) ['per_unit_price' => '10.00', 'code' => 'dynamic_metal', 'text_value' => NULL],
(object) ['per_unit_price' => '20.00', 'code' => 'dynamic_stone', 'text_value' => NULL],
(object) ['per_unit_price' => '50.00', 'code' => 'dynamic_stone2', 'text_value' => NULL]
];

// Search for the substring in the array
$searchTerm = 'dynamic_metal';
$filteredArray = array_filter($array, function($item) use ($searchTerm) {
return strpos($item->code, $searchTerm) !== false;
});

// Now you can perform your desired operation on the filtered array
foreach ($filteredArray as $item) {
// Perform your operation here
echo $item->text_value * $item->per_unit_price . "\n";
}


In this code snippet, we use array_filter() to filter out the elements in the array that contain the substring 'dynamic_metal'. Then, we can perform our desired operation on the filtered array. This approach is more efficient than using a traditional loop to scan through the entire array.