<?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 5.6.40, 8.1.23 - 8.1.33, 8.2.10 - 8.2.29, 8.3.0 - 8.3.4, 8.3.6 - 8.3.25, 8.4.1 - 8.4.12
- 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
)
)
- Output for 8.3.5
- Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
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
)
)
preferences:
74.38 ms | 411 KiB | 5 Q