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@ 2022-09-09T06:20:00Z

<?php

$arr=Array
(
    "1" => Array
        (
            "1" => "c1",
            "2" => "c1",
            "3" => "c1",
            "4" => "c1",
            "5" => "c1",
            "6" => "c1",
            "7" => "c1",
            "8" => "c1",
            "9" => "c1",
            "10" => "c1",
            "11" => "c1",
            "12" => "c1"
        ),
    "10" => Array
        (
            "1" => "c2",
            "2" => "c2",
            "3" => "c2",
            "4" => "c2",
            "5" => "c2",
            "6" => "c2",
            "7" => "c2",
            "8" => "c2",
            "9" => "c2",
            "10" => "c2",
            "11" => "c2",
            "12" => "c2"
        )
);

echo json_encode(
    array_map(
        null,
        array_keys(current($arr)),
        ...$arr
    ),
    JSON_PRETTY_PRINT
);

Output for git.master, git.master_jit, rfc.property-hooks: [ [ 1, "c1", "c2" ], [ 2, "c1", "c2" ], [ 3, "c1", "c2" ], [ 4, "c1", "c2" ], [ 5, "c1", "c2" ], [ 6, "c1", "c2" ], [ 7, "c1", "c2" ], [ 8, "c1", "c2" ], [ 9, "c1", "c2" ], [ 10, "c1", "c2" ], [ 11, "c1", "c2" ], [ 12, "c1", "c2" ] ]

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Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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