15 years ago If the array elements are unique, and are all integers or strings, here is a simple way to pick $n random *values* (not keys) from an array $array: <?php array_rand(array_flip($array), $n); ?>up down 76 Anonymous ¶ 12 years ago It doesn't explicitly say...
If the array elements are unique, and are all integers or strings, here is a simple way to pick $n random *values* (not keys) from an array $array: <?php array_rand(array_flip($array), $n); ?> darren(at)ironworks-crawley(do)co(do)uk (24-Feb-2009 03:52) adapted from he...
$randomElements = array_map(function ($key) use ($numbers) { return $numbers[$key]; }, $randomKeys); echo "Multiple random elements: " . implode(', ', $randomElements) . "\n"; In this program, thearray_randfunction is used to pick random keys from the$numbersarray. The elements ...
$pm = array_rand($myarray,3); // $pm return array(0->0,1->6,2->8)But if I decide to shuffle an array of 10 entries to get 10 entries, array_rand () will choose to assign a value to each return value and therefore the return array will not be random....
In conclusion, the array_rand function is a useful tool for generating random elements from an array in PHP. Whether you need to pick a random item from a list, or generate multiple random elements, array_rand is an efficient and easy-to-use solution....
publicpickArrayKeys(array$array,int$num):array public__serialize():array publicshuffleArray(array$array):array publicshuffleBytes(string$bytes):string public__unserialize(array$data):void } 属性¶ engine The low-level source of randomness for theRandom\Randomizer’s methods. ...
The array_rand() function returns one or more random keys from an array.The following table summarizes the technical details of this function.Return Value: Returns a random key or an array of random keys from an array. Changelog: Since PHP 7.1.0, the internal randomization algorithm has been...
PHP: Pick one or more random entries out of an array The array_rand() function is used to fetch one or more random entries from an array. It uses a pseudo-random number generator that is not suitable for cryptographic purposes. Version: ...
Take time to learn the terminology and read the Docker User Guide to get the most from it, and don’t run random code you’ve downloaded without checking it’s safe – unofficial images may not have the latest security patches. If in doubt, stick to the official repositiories. The PHP...
CURLOPT_RANDOM_FILE一个被用来生成 SSL 随机数种子的文件名。 CURLOPT_RANGE以"X-Y"的形式,其中X和Y都是可选项获取数据的范围,以字节计。HTTP传输线程也支持几个这样的重复项中间用逗号分隔如"X-Y,N-M"。 CURLOPT_REFERER在HTTP请求头中"Referer: "的内容。