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@ 2022-12-11T23:32:42Z

<?php

$array = [
    (object) ['graduateYear' => 'Class of 2007', 'id' => 1, 'lastsName' => 'Igbashio', 'firstName' => 'Kalifort'],
    (object) ['graduateYear' => 'Class of 2007', 'id' => 2, 'lastsName' => 'Usman', 'firstName' => 'Bello'],
    (object) ['graduateYear' => 'Class of 2007', 'id' => 3, 'lastsName' => 'Manasseh', 'firstName' => 'Isa'],
    (object) ['graduateYear' => 'Class of 2008', 'id' => 4, 'lastsName' => 'Igbashio', 'firstName' => 'Sansa'],
    (object) ['graduateYear' => 'Class of 2008', 'id' => 5, 'lastsName' => 'Yusuf', 'firstName' => "Sa'atu"],
    (object) ['graduateYear' => 'Class of 2008', 'id' => 6, 'lastsName' => 'Rimamtse', 'firstName' => 'Bleesing'],
];
    
$grouped = [];
foreach ($array as $obj) {
    sscanf($obj->graduateYear, 'Class of %d', $year);
    unset($obj->graduateYear);
    $grouped[$year]['title'] = $year;  // doesn't matter that this is overwritten over and over
    $grouped[$year]['data'][] = $obj;
}
var_export(array_values($grouped));

Output for git.master, git.master_jit, rfc.property-hooks: array ( 0 => array ( 'title' => 2007, 'data' => array ( 0 => (object) array( 'id' => 1, 'lastsName' => 'Igbashio', 'firstName' => 'Kalifort', ), 1 => (object) array( 'id' => 2, 'lastsName' => 'Usman', 'firstName' => 'Bello', ), 2 => (object) array( 'id' => 3, 'lastsName' => 'Manasseh', 'firstName' => 'Isa', ), ), ), 1 => array ( 'title' => 2008, 'data' => array ( 0 => (object) array( 'id' => 4, 'lastsName' => 'Igbashio', 'firstName' => 'Sansa', ), 1 => (object) array( 'id' => 5, 'lastsName' => 'Yusuf', 'firstName' => 'Sa\'atu', ), 2 => (object) array( 'id' => 6, 'lastsName' => 'Rimamtse', 'firstName' => 'Bleesing', ), ), ), )

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2022-12-01 RFC: Property hooks - included in PHP 8.4
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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