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@ 2015-06-19T14:52:29Z

<?php

$array = array(
    array(
        'id' => 29,
        'name' => 'john'
    ),
    array(
        'id' => 30,
        'name' => 'joe'
    ),
    array(
        'id' => 29,
        'name' => 'jake'
    ) 
);


$filter = [];
$array = array_filter($array, function($a) use (&$filter) {
    $ret = !isset($filter[$a['id']]);
    $filter[$a['id']] = true;

    return $ret;
});

var_dump($array);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
array_filter: documentation ( source)

preferences:dark modelive previewkey bindings

26.63 ms | 405 KiB | 5 Q