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@ 2021-07-09T16:29:08Z

<?php

    class my_obj
    {
            public $term_id;
            public $name;
            public $slug;
    
            public function __construct($i, $n, $s)
            {
                    $this->term_id = $i;
                    $this->name = $n;
                    $this->slug = $s;
            }
    }
    
    $objA = new my_obj(23, 'Assasination', 'assasination');
    $objB = new my_obj(14, 'Campaign Finance', 'campaign-finance');
    $objC = new my_obj(15, 'Campaign Finance', 'campaign-finance-good-government-political-reform');
    
    $array = array($objA, $objB, $objC);
    
    echo 'Original array:\n';
    print_r($array);

    /** Answer Code begins here **/
    
    // Build temporary array for array_unique
    $tmp = array();
    foreach($array as $k => $v)
        $tmp[$k] = $v->name;
    
    // Find duplicates in temporary array
    $tmp = array_unique($tmp);
    
    // Build new array with only non-duplicate items
    $filtered = [];
    foreach($array as $k => $v)
    {
        if (array_key_exists($k, $tmp))
            $filtered[$k] = $v;
    }

    /** Answer Code ends here **/
    
    echo 'After removing duplicates\n';
    print_r($filtered);

Output for git.master, git.master_jit, rfc.property-hooks: Original array:\nArray ( [0] => my_obj Object ( [term_id] => 23 [name] => Assasination [slug] => assasination ) [1] => my_obj Object ( [term_id] => 14 [name] => Campaign Finance [slug] => campaign-finance ) [2] => my_obj Object ( [term_id] => 15 [name] => Campaign Finance [slug] => campaign-finance-good-government-political-reform ) ) After removing duplicates\nArray ( [0] => my_obj Object ( [term_id] => 23 [name] => Assasination [slug] => assasination ) [1] => my_obj Object ( [term_id] => 14 [name] => Campaign Finance [slug] => campaign-finance ) )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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