Check if all array in multidimensional Array meets a specific condition

Question

I want to perform a specific action if all arrays in a multidimensional array meet a specific condition when two of their values are subtracted.

What loop could help me achieve this type of result as shown in my code below:

$array = Array( 
    [0] => Array("id" => 1, "value1" => 7, "value2" => 10), 
    [1] => Array("id" => 2, "value1" => 6, "value2" => 10), 
    [2] => Array("id" => 3, "value1" => 8, "value2" => 11), 
    [3] => Array("id" => 4, "value1" => 9, "value2" => 12),
    [n] => Array( ...)
);

$val1 = $array[0]['value2'] - $array[0]['value1']; // 10 - 7 = 3
$val2 = $array[1]['value2'] - $array[1]['value1']; // 10 - 6 = 4
$val3 = $array[2]['value2'] - $array[2]['value1']; // 11 - 8 = 3
$val4 = $array[3]['value2'] - $array[3]['value1']; // 12 - 9 = 3
$valn = $array[n]...

if ($val1 < 5 && $val2 < 5 && $val3 < 5 && $val4 < 5 ... && valn < 5){

  //from my example, the answer is TRUE for all
 // Do this action

}else{
 // Do something else

}

is your goal to process only those arrays which subtraction result is less than 5? — RomanPerekhrest
– RomanPerekhrest, Commented May 23, 2017 at 10:03
@RomanPerekhrest No., my goal is to process all arrays and return TRUE or FALSE if they are all less than 5 — kcay King
– kcay King, Commented May 23, 2017 at 10:06

spaceman · Accepted Answer · 2017-05-23 10:05:49Z

1

$all_less_than_5 = true;
foreach($array as $item){
    if($item['value2'] - $item['value1'] >= 5){
         $all_less_than_5 = false;
         break;
    } 
}
if($all_less_than_5){
    // Do this action
}else{
    // Do something else
}

answered May 23, 2017 at 10:05

spaceman

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