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@ 2016-01-24T23:58:57Z

<?php

$anna_array = array("soccer" => "10", "basketball" => "20", "atletics" => "40");
$john_array = array("soccer" => "15", "basketball" => "15", "atletics" => "45");

$common_sports = array_keys(array_intersect_key($anna_array, $john_array));

$points_anna_array = $points_john_array = array_fill_keys($common_sports, 0);
foreach ($common_sports as $common_sport) {
    if ($anna_array[$common_sport] > $john_array[$common_sport]) {
        $points_anna_array[$common_sport]++;
    } else if ($anna_array[$common_sport] < $john_array[$common_sport]) {
        $points_john_array[$common_sport]++;
    }
}

echo $points_speler1_array[$common_sport];

foreach ($common_sports as $common_sport) {
    echo sprintf(
       'Anna(%s) %d vs John(%s) %d'."\n",
       $common_sport, $points_anna_array[$common_sport],
       $common_sport, $points_john_array[$common_sport]
    );
}

Output for git.master, git.master_jit: Warning: Undefined variable $points_speler1_array in /in/EqFum on line 17 Warning: Trying to access array offset on value of type null in /in/EqFum on line 17 Anna(soccer) 0 vs John(soccer) 1 Anna(basketball) 1 vs John(basketball) 0 Anna(atletics) 0 vs John(atletics) 1
Output for rfc.property-hooks: Warning: Undefined variable $points_speler1_array in /in/EqFum on line 17 Warning: Trying to access array offset on null in /in/EqFum on line 17 Anna(soccer) 0 vs John(soccer) 1 Anna(basketball) 1 vs John(basketball) 0 Anna(atletics) 0 vs John(atletics) 1

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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