php 转url编码

<?php
// 编码
$input = "Hello World!";
$encoded = urlencode($input);
echo "Encoded: " . $encoded . "\n"; // 输出: Encoded: Hello+World%21

// 解码
$decoded = urldecode($encoded);
echo "Decoded: " . $decoded . "\n"; // 输出: Decoded: Hello World!
?>

<?php
$encoded = "Hello+World%21";
$decoded = urldecode($encoded);
echo $decoded; // 输出: Hello World!
?>

<?php
$params = array(
    'name' => 'John Doe',
    'email' => 'john.doe@example.com'
);

foreach ($params as $key => $value) {
    $encoded_params[] = urlencode($key) . '=' . urlencode($value);
}

$url = 'https://example.com/api?' . implode('&', $encoded_params);
echo $url; // 输出: https://example.com/api?name=John+Doe&email=john.doe%40example.com
?>