php随机输出

<?php
// 生成一个1到100之间的随机整数
$randomNumber = rand(1, 100);
echo "随机数: " . $randomNumber;
?>

<?php
// 生成一个长度为10的随机字符串
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$randomString = '';
for ($i = 0; $i < 10; $i++) {
    $randomString .= $characters[rand(0, strlen($characters) - 1)];
}
echo "随机字符串: " . $randomString;
?>

<?php
// 定义一个数组
$array = array("apple", "banana", "cherry", "date");
// 从数组中随机选择一个元素
$randomElement = $array[array_rand($array)];
echo "随机元素: " . $randomElement;
?>

<?php
$randomNumber = mt_rand(1, 100);
echo "随机数: " . $randomNumber;
?>

<?php
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$shuffledCharacters = str_shuffle($characters);
$randomString = substr($shuffledCharacters, 0, 10);
echo "随机字符串: " . $randomString;
?>

<?php
$array = array("apple", "banana", "cherry", "date");
if (!empty($array)) {
    $randomElement = $array[array_rand($array)];
    echo "随机元素: " . $randomElement;
} else {
    echo "数组为空";
}
?>