arrays.php

<?php
    $arr = array(
    0 => array("href" => "google.com", "text" => "Google"),
    1 => array("href" => "ya.ru", "text" => "Yandex"),
    2 => array("href" => "google.com", "text" => "Google RU"),
    3 => array("href" => "google.com", "text" => "Google"),
    );

    $str = array();
    $some = array();

    foreach($arr as $key => $value) {
    $some[$key] = $value["href"];
    }

    $some = array_unique($some);

    foreach($some as $key => $value) {
      $str[$key] = $arr[$key];
    }
	
	
?>