// 准备要发送的数组
var myArray = ['apple', 'banana', 'orange'];

// 使用jQuery的AJAX发送数据
$.ajax({
    url: 'process.php',
    type: 'POST',
    data: {
        fruits: JSON.stringify(myArray) // 将数组转为JSON字符串
    },
    success: function(response) {
        console.log('服务器响应:', response);
    },
    error: function(xhr, status, error) {
        console.error('请求失败:', error);
    }
});

<?php
// 获取发送过来的JSON字符串并解码为PHP数组
$receivedArray = json_decode($_POST['fruits'], true);

// 检查解码是否成功
if (json_last_error() === JSON_ERROR_NONE) {
    // 处理数组
    print_r($receivedArray);
    // 返回响应
    echo "数组接收成功";
} else {
    echo "JSON解码错误: " . json_last_error_msg();
}
?>

<form id="myForm">
    <input type="checkbox" name="fruits[]" value="apple" checked> Apple
    <input type="checkbox" name="fruits[]" value="banana" checked> Banana
    <input type="checkbox" name="fruits[]" value="orange"> Orange
</form>

<script>
$('#myForm').submit(function(e) {
    e.preventDefault();
    
    $.ajax({
        url: 'process.php',
        type: 'POST',
        data: $(this).serialize(),
        success: function(response) {
            console.log(response);
        }
    });
});
</script>

<?php
$fruits = $_POST['fruits']; // 直接获取数组
print_r($fruits);
?>

var params = {
    fruits: ['apple', 'banana', 'orange']
};

// jQuery会自动处理数组参数
$.get('process.php', params, function(response) {
    console.log(response);
});

<?php
$fruits = $_GET['fruits']; // 获取数组
print_r($fruits);
?>

var complexArray = {
    fruits: ['apple', 'banana'],
    vegetables: ['carrot', 'broccoli']
};

$.ajax({
    url: 'process.php',
    type: 'POST',
    data: { data: JSON.stringify(complexArray) },
    success: function(response) {
        console.log(response);
    }
});

<?php
$data = json_decode($_POST['data'], true);
print_r($data['fruits']);
print_r($data['vegetables']);
?>