php多维数组到字符串或表

<?php
function arrayToString($array, $separator = ',') {
    $result = '';
    foreach ($array as $key => $value) {
        if (is_array($value)) {
            $result .= $key . ': ' . arrayToString($value, $separator) . $separator;
        } else {
            $result .= $key . ': ' . $value . $separator;
        }
    }
    return rtrim($result, $separator);
}

function arrayToTable($array) {
    $table = '<table>';
    foreach ($array as $key => $value) {
        if (is_array($value)) {
            $table .= '<tr><td>' . $key . '</td><td>' . arrayToTable($value) . '</td></tr>';
        } else {
            $table .= '<tr><td>' . $key . '</td><td>' . $value . '</td></tr>';
        }
    }
    $table .= '</table>';
    return $table;
}

// 示例多维数组
$multiArray = array(
    'name' => 'John Doe',
    'age' => 30,
    'contact' => array(
        'email' => 'john@example.com',
        'phone' => '1234567890'
    ),
    'address' => array(
        'street' => '123 Main St',
        'city' => 'New York',
        'state' => 'NY'
    )
);

// 转换为字符串
$string = arrayToString($multiArray);
echo $string;

// 转换为表格
$table = arrayToTable($multiArray);
echo $table;
?>

name: John Doe, age: 30, contact: email: john@example.com, phone: 1234567890, address: street: 123 Main St, city: New York, state: NY

<table>
    <tr>
        <td>name</td>
        <td>John Doe</td>
    </tr>
    <tr>
        <td>age</td>
        <td>30</td>
    </tr>
    <tr>
        <td>contact</td>
        <td>
            <table>
                <tr>
                    <td>email</td>
                    <td>john@example.com</td>
                </tr>
                <tr>
                    <td>phone</td>
                    <td>1234567890</td>
                </tr>
            </table>
        </td>
    </tr>
    <tr>
        <td>address</td>
        <td>
            <table>
                <tr>
                    <td>street</td>
                    <td>123 Main St</td>
                </tr>
                <tr>
                    <td>city</td>
                    <td>New York</td>
                </tr>
                <tr>
                    <td>state</td>
                    <td>NY</td>
                </tr>
            </table>
        </td>
    </tr>
</table>