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@ 2018-07-10T00:22:59Z

<?php
$array1 =    
    array(
        array('ur_user_id'=> 1,'ur_fname'=>'PerA','ur_lname'=>'SonA'),
        array('ur_user_id'=> 2,'ur_fname'=>'PerB','ur_lname'=>'SonB'),
        array('ur_user_id'=> 3,'ur_fname'=>'PerC','ur_lname'=>'SonC'),
    );
$array2 = 
    array(
        array('ur_user_id' => 5,'ur_code' => 'EE','ur_user_role' => 'testE'),
        array('ur_user_id' => 4,'ur_code' => 'DD','ur_user_role' => 'testD'),
        array('ur_user_id' => 6,'ur_code' => 'FF','ur_user_role' => 'testF'),
        array('ur_user_id' => 3,'ur_code' => 'CC','ur_user_role' => 'testC'),
        array('ur_user_id' => 1,'ur_code' => 'AA','ur_user_role' => 'testA'),
        array('ur_user_id' => 2,'ur_code' => 'BB','ur_user_role' => 'testB'),
    );  
    
$keyed = array_column($array2, NULL, 'ur_user_id');

foreach ($array1 as &$row) {
    if (isset($keyed[$row['ur_user_id']])) {
        $row += $keyed[$row['ur_user_id']];
    }
}

var_export($array1);

Output for git.master, git.master_jit, rfc.property-hooks: array ( 0 => array ( 'ur_user_id' => 1, 'ur_fname' => 'PerA', 'ur_lname' => 'SonA', 'ur_code' => 'AA', 'ur_user_role' => 'testA', ), 1 => array ( 'ur_user_id' => 2, 'ur_fname' => 'PerB', 'ur_lname' => 'SonB', 'ur_code' => 'BB', 'ur_user_role' => 'testB', ), 2 => array ( 'ur_user_id' => 3, 'ur_fname' => 'PerC', 'ur_lname' => 'SonC', 'ur_code' => 'CC', 'ur_user_role' => 'testC', ), )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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