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@ 2018-03-20T07:21:16Z

<?php

  $newsArray = array();
  $item_title = 'Hello World';
  $media = 'Prothom Alo';
  $pubDate = 'Sun, 18 Mar 2018 05:51:28 GMT';
  //echo (new DateTime('Sun, 18 Mar 2018 05:51:28 GMT'))->format('l, d F Y');

  $newsArray[0] = array(
                                'title' => (string)$item_title,
                                'media' => (string)$media,
                                'pubdate' => new DateTime($pubDate)
             );
    
  $item_title = 'Hello World 2';
  $media = 'Prothom Alo 2';
  $pubDate = 'Sun, 19 Mar 2018 05:51:28 GMT';         
  $newsArray[1] = array(
                                'title' => (string)$item_title,
                                'media' => (string)$media,
                                'pubdate' => new DateTime($pubDate)
             );
             
  usort($newsArray,'date_compare');
  
  function date_compare($a, $b)
  {
      $t1 = $a['pubDate'];
      $t2 = $b['pubDate'];
      return $t1 - $t2;
  }

?>

Output for git.master, git.master_jit, rfc.property-hooks: Warning: Undefined array key "pubDate" in /in/RJTKJ on line 28 Warning: Undefined array key "pubDate" in /in/RJTKJ on line 29

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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