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@ 2015-11-06T07:14:01Z

<?php
class Recursion
{
    private static function printArray()
    {
	    print_r(self::$array);
    }

    public static function recursionInitiatorParent($information, $list)
    {
        self::$array = $information;
        self::$keylist = $list;
        
        $keywords = explode(",", self::$keylist);
    
        echo "Before: \n\n";
        self::printArray();
        
        foreach($keywords as $key)
            self::recursionInitiator(self::$array, $key);
            
        echo "\n======================================= \n\n";
        self::printArray();
    }

    private static function recursionInitiator($array, $key)
    {
        if(count($array) < 1)
            return;
        
        foreach($array as $record)
        {
            if(is_array($record))
            {
                foreach($record as $key_internal=>$value_internal)
                    if($key_internal === $key)
                        $value_internal = self::$asterisk;
            }
                
            else
                self::recursionInitiator($record, $key);
        }
    }

    private static $asterisk = "**";
    private static $array;
    private static $keylist;
}

$information = array("login" => "someUsername", 
        "password" => "somePassword",
        "card_pin"=>"card_1234",
        "pin"=>"pin_356",
        "iin" => "iin_123", 
        "shipping" => array("telephone" => "telephone_998"),
        "cardnumber" => "card_number_876",
        "customer_id" => "customer_654");
$list = "telephone,iin";
Recursion::recursionInitiatorParent($information, $list);

Output for git.master, git.master_jit, rfc.property-hooks: Before: Array ( [login] => someUsername [password] => somePassword [card_pin] => card_1234 [pin] => pin_356 [iin] => iin_123 [shipping] => Array ( [telephone] => telephone_998 ) [cardnumber] => card_number_876 [customer_id] => customer_654 ) Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, string given in /in/KWtXY:28 Stack trace: #0 /in/KWtXY(41): Recursion::recursionInitiator('someUsername', 'telephone') #1 /in/KWtXY(20): Recursion::recursionInitiator(Array, 'telephone') #2 /in/KWtXY(59): Recursion::recursionInitiatorParent(Array, 'telephone,iin') #3 {main} thrown in /in/KWtXY on line 28
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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