代碼如下:<?php /* * $array = the array to be filtered * $total = the maximum number of items to return * $unique = whether or not to remove duplicates before getting a random list */ function unique_array($array, $total, $unique = true){ $newArray = array(); if((bool)$unique){ $array = array_unique($array); } shuffle($array); $length = count($array); for($i = 0; $i < $total; $i++){ if($i < $length){ $newArray[] = $array[$i]; } } return $newArray; } $phrases = array('Hello Sailor','Acid Test','Bear Garden','Botch A Job','Dark Horse', 'In The Red','Man Up','Pan Out','Quid Pro Quo','Rub It In','Turncoat', 'Yes Man','All Wet','Bag Lady','Bean Feast','Big Wig', 'Big Wig','Bear Garden' ,'All Wet','Quid Pro Quo','Rub It In'); print_r(unique_array($phrases, 1)); // Returns 1 result print_r(unique_array($phrases, 5)); // Returns 5 unique results print_r(unique_array($phrases, 5, false)); // Returns 5 results, but may have duplicates if // there are duplicates in original array print_r(unique_array($phrases, 100)); // Returns 100 unique results print_r(unique_array($phrases, 100, false)); // Returns 100 results, but may have duplicates if // there are duplicates in original array
