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@ 2014-07-23T22:51:04Z

<? php
    
$order = array(
    3452342,
    5867867,
    7867867,
    1231233
);
$array = array(
    array("id" => 7867867, "title" => "Must Be #3"),
    array("id" => 3452342, "title" => "Must Be #1"),
    array("id" => 1231233, "title" => "Must Be #4"),
    array("id" => 5867867, "title" => "Must Be #2"),
    array("id" => 1111111, "title" => "Dont Care #1"),
    array("id" => 2222222, "title" => "Dont Care #2"),
    array("id" => 3333333, "title" => "Dont Care #3"),
    array("id" => 4444444, "title" => "Dont Care #4")
);
function custom_compare($a, $b){
    global $order;
    $a = array_search($a["id"], $order);
    $b = array_search($b["id"], $order);
    if($a === false && $b === false) { // both items are dont cares
        return 0;                      // a == b
    }
    else if ($a === false) {           // $a is a dont care item
        return 1;                      // $a > $b
    }
    else if ($b === false) {           // $b is a dont care item
        return -1;                     // $a < $b
    }
    else {
        return $a - $b;
    }
}
shuffle($array);  // for testing
var_dump($array); // before
usort($array, "custom_compare");
var_dump($array); // after
?>

Output for git.master, git.master_jit, rfc.property-hooks: <? php $order = array( 3452342, 5867867, 7867867, 1231233 ); $array = array( array("id" => 7867867, "title" => "Must Be #3"), array("id" => 3452342, "title" => "Must Be #1"), array("id" => 1231233, "title" => "Must Be #4"), array("id" => 5867867, "title" => "Must Be #2"), array("id" => 1111111, "title" => "Dont Care #1"), array("id" => 2222222, "title" => "Dont Care #2"), array("id" => 3333333, "title" => "Dont Care #3"), array("id" => 4444444, "title" => "Dont Care #4") ); function custom_compare($a, $b){ global $order; $a = array_search($a["id"], $order); $b = array_search($b["id"], $order); if($a === false && $b === false) { // both items are dont cares return 0; // a == b } else if ($a === false) { // $a is a dont care item return 1; // $a > $b } else if ($b === false) { // $b is a dont care item return -1; // $a < $b } else { return $a - $b; } } shuffle($array); // for testing var_dump($array); // before usort($array, "custom_compare"); var_dump($array); // after ?>

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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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