如何使用PHP验证htpasswd生成的bcrypt哈希？

<?php
// 从htpasswd文件中获取用户名和bcrypt哈希密码
$htpasswdFile = '/path/to/htpasswd';
$htpasswdContent = file_get_contents($htpasswdFile);
$lines = explode("\n", $htpasswdContent);
$users = [];
foreach ($lines as $line) {
    $parts = preg_split('/[:\s]/', $line);
    if (count($parts) === 2) {
        $username = $parts[0];
        $bcryptHash = $parts[1];
        $users[$username] = $bcryptHash;
    }
}

// 用户输入的密码
$userInputPassword = 'password123';

// 验证密码
$username = 'example_user';
if (isset($users[$username])) {
    $bcryptHash = $users[$username];
    if (password_verify($userInputPassword, $bcryptHash)) {
        echo '密码验证成功';
    } else {
        echo '密码验证失败';
    }
} else {
    echo '用户不存在';
}
?>