php 数据转字符串

<?php
$array = array('apple', 'banana', 'cherry');
$string = implode(', ', $array);
echo $string; // 输出: apple, banana, cherry
?>

<?php
$array = array('name' => 'John', 'age' => 30, 'city' => 'New York');
$jsonString = json_encode($array);
echo $jsonString; // 输出: {"name":"John","age":30,"city":"New York"}
?>

<?php
$data = "你好，世界！";
$encodedData = mb_convert_encoding($data, 'UTF-8', 'auto');
echo $encodedData;
?>

<?php
class Person {
    public $name;
    private $age;

    public function __construct($name, $age) {
        $this->name = $name;
        $this->age = $age;
    }

    public function __sleep() {
        return array('name', 'age');
    }

    public function __wakeup() {
        $this->age = intval($this->age);
    }
}

$person = new Person('John', 30);
$jsonString = json_encode($person);
echo $jsonString; // 输出: {"name":"John","age":30}
?>