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@ 2015-01-18T21:40:00Z

<?php

$pr = array( array( 'id' => 'aaa', 'date' => 'Oct 8, 2006' ),
             array( 'id' => 'bbb', 'date' => 'Nov 14, 2008'),
             array( 'id' => 'ccc', 'date' => 'Dec 19, 2014'),
             array( 'id' => 'ddd', 'date' => 'Feb 4, 2010'),
             array( 'id' => 'eee', 'date' => 'Jul 7, 2013'),
             array( 'id' => 'fff', 'date' => 'Mar 6, 2002'),
             array( 'id' => 'ggg', 'date' => 'Mar 1, 2001'),
             array( 'id' => 'hhh', 'date' => 'Aug 8, 1999'),
             array( 'id' => 'iii', 'date' => 'Sep 5, 2007'),
             array( 'id' => 'jjj', 'date' => 'Apr 13, 2004'),
             array( 'id' => 'kkk', 'date' => 'Mar 6, 1996'),
             array( 'id' => 'lll', 'date' => 'Mar 6, 1997'),
             array( 'id' => 'mmm', 'date' => 'Mar 6, 1998'),
             array( 'id' => 'nnn', 'date' => 'Mar 6, 1999'),
             array( 'id' => 'ooo', 'date' => 'Mar 7, 1996'),
             array( 'id' => 'ppp', 'date' => 'Mar 7, 1997'),
             array( 'id' => 'qqq', 'date' => 'Mar 7, 2002')
      );

function cmp($a,$b) {
    return strtotime($a['date']) < strtotime($b['date']);
}
usort($pr,'cmp');
print_r($pr);

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: usort(): Returning bool from comparison function is deprecated, return an integer less than, equal to, or greater than zero in /in/7prWJ on line 25 Array ( [0] => Array ( [id] => ccc [date] => Dec 19, 2014 ) [1] => Array ( [id] => eee [date] => Jul 7, 2013 ) [2] => Array ( [id] => ddd [date] => Feb 4, 2010 ) [3] => Array ( [id] => bbb [date] => Nov 14, 2008 ) [4] => Array ( [id] => iii [date] => Sep 5, 2007 ) [5] => Array ( [id] => aaa [date] => Oct 8, 2006 ) [6] => Array ( [id] => jjj [date] => Apr 13, 2004 ) [7] => Array ( [id] => qqq [date] => Mar 7, 2002 ) [8] => Array ( [id] => fff [date] => Mar 6, 2002 ) [9] => Array ( [id] => ggg [date] => Mar 1, 2001 ) [10] => Array ( [id] => hhh [date] => Aug 8, 1999 ) [11] => Array ( [id] => nnn [date] => Mar 6, 1999 ) [12] => Array ( [id] => mmm [date] => Mar 6, 1998 ) [13] => Array ( [id] => ppp [date] => Mar 7, 1997 ) [14] => Array ( [id] => lll [date] => Mar 6, 1997 ) [15] => Array ( [id] => ooo [date] => Mar 7, 1996 ) [16] => Array ( [id] => kkk [date] => Mar 6, 1996 ) )

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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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