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@ 2014-02-27T12:07:38Z

<?php
$array=Array
(
"21" => Array
    (
        "0" => 3.5,
        "65" => Array
            (
                "0" => 44.125
            ),

        "150" => Array
            (
                "0" => 15.25
            ),

        "151" => Array
            (
                "0" => 17.333333333333
            )

    ),

"23" => Array
    (
        "0" => 0,
        "166" => Array
            (
                "0" => 26
            ),

        "172" => Array
            (
                "0" =>0 
            ),

        "182" => Array
            (
                "0" => 20.333333333333
            ),

        "183" => Array
            (
                "0" => 24.125
            )

    )

);

   $count1 = 0;$sum=0;
    $count2 = 0;$sum2=0;
    foreach ($array as $key3 => $value3) 
    {
      if($key3 == "21")
      {
        foreach ($value3 as $key => $value)
        {
          if (strpos($key, '0') === 0) {
            $count1++;$sum=$sum+$value;
           }
           if(is_array($value))
           { 
             foreach($value as $key2=>$value2)
             {
               if(strpos($key2,'0') === 0)
               {
                 $count1++ ;$sum=$sum+$value2;
               }
             }
           }
        }
      }
      if($key3 == "23")
      {
        foreach ($value3 as $key => $value)
        {
          if (strpos($key, '0') === 0) {
            $count2++;$sum2=$sum2+$value;
           }
           if(is_array($value))
           { 
             foreach($value as $key2=>$value2)
             {
               if(strpos($key2,'0') === 0)
               {
                 $count2++; $sum2=$sum2+$value2;
               }
             }
           }
        }
      }
    }


$array[21][0] = ($sum/$count1);
$array[23][0] = ($sum2/$count2);

print_r($array);

echo $catCount = count(preg_grep("/^0+$/", array_keys(get_object_vars($array))));

Output for git.master, git.master_jit, rfc.property-hooks: Array ( [21] => Array ( [0] => 20.052083333333 [65] => Array ( [0] => 44.125 ) [150] => Array ( [0] => 15.25 ) [151] => Array ( [0] => 17.333333333333 ) ) [23] => Array ( [0] => 14.091666666667 [166] => Array ( [0] => 26 ) [172] => Array ( [0] => 0 ) [182] => Array ( [0] => 20.333333333333 ) [183] => Array ( [0] => 24.125 ) ) ) Fatal error: Uncaught TypeError: get_object_vars(): Argument #1 ($object) must be of type object, array given in /in/Nu2F2:101 Stack trace: #0 /in/Nu2F2(101): get_object_vars(Array) #1 {main} thrown in /in/Nu2F2 on line 101
Process exited with code 255.

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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