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@ 2018-04-13T16:32:38Z

<?php


    /**
     * Keys are ISO-8601 numeric representation
     * of the days of the week
     */
    $days = [
        1 => 0b0000001, //  1
        2 => 0b0000010, //  2
        3 => 0b0000100, //  4
        4 => 0b0001000, //  8
        5 => 0b0010000, // 16
        6 => 0b0100000, // 32
        7 => 0b1000000, // 64
    ];


    $mondayToFriday = 31; // 1 + 2 + 4 + 8 + 16
    
    foreach ($days as $n => $v) {
      
        /**
         * Get the day's name using strftime (has locale capability)
         * strtotime("Sunday +n days") would work with ISO-8601 day
         * numbers or PHP's date("w") (0 - 6 / Sunday - Saturday)
         */
        $day = strftime("%A", strtotime("Sunday +{$n} days"));


        echo "{$day}: " . (($v & $mondayToFriday) ? "Y" : "N") . PHP_EOL;
    
    }
    
    echo PHP_EOL;
    
    /**
     * The order of these is important
     */
    $input["days"] = [
        "Monday"    => 0,
        "Tuesday"   => 1,
        "Wednesday" => 0,
        "Thursday"  => 0,
        "Friday"    => 0,
        "Saturday"  => 0,
        "Sunday"    => 0,
    ];


    $dec = bindec(strrev(implode("", $input["days"])));
    
    echo "\$dec: {$dec}" . PHP_EOL;

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Function strftime() is deprecated in /in/R6u1v on line 28 Monday: Y Deprecated: Function strftime() is deprecated in /in/R6u1v on line 28 Tuesday: Y Deprecated: Function strftime() is deprecated in /in/R6u1v on line 28 Wednesday: Y Deprecated: Function strftime() is deprecated in /in/R6u1v on line 28 Thursday: Y Deprecated: Function strftime() is deprecated in /in/R6u1v on line 28 Friday: Y Deprecated: Function strftime() is deprecated in /in/R6u1v on line 28 Saturday: N Deprecated: Function strftime() is deprecated in /in/R6u1v on line 28 Sunday: N $dec: 2

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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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