要先注册阿里云帐号，开通智能语音服务

class tts{

private $access_id = '';

private $ak_secret = '';

private $audioType = '';

public function __construct($access_id,$ak_secret,$audioType)

{

$this->access_id = $access_id;

$this->ak_secret = $ak_secret;

$this->audioType = $audioType;

}

public function curlRequest($url, $params , $is_post = false, $time_out = 10, $header=array())

{

$str_cookie = isset($ext_params['str_cookie']) ? $ext_params['str_cookie'] : '';

$ch = curl_init();//初始化curl

curl_setopt($ch, CURLOPT_URL, $url);//抓取指定网页

curl_setopt($ch, CURLOPT_HEADER, 0);//设置是否返回response header

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上

//当需要通过curl_getinfo来获取发出请求的header信息时，该选项需要设置为true

curl_setopt($ch, CURLINFO_HEADER_OUT, true);

curl_setopt($ch, CURLOPT_TIMEOUT, $time_out);

curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $time_out);

curl_setopt($ch, CURLOPT_POST, $is_post);

if ($is_post) {

curl_setopt($ch, CURLOPT_POSTFIELDS, $params);

}

if ($str_cookie) {

curl_setopt($ch, CURLOPT_COOKIE, $str_cookie);

}

if ($header) {

curl_setopt($ch, CURLOPT_HTTPHEADER, $header);

}

$response = curl_exec($ch);

curl_close($ch);

return $response;

}

public function tts_voice($body,$file){

$bodyMd5 = base64_encode(md5($body,true));

$method = "POST";

$audioType = $this->audioType;

$content_type = "text/plain";

$date = gmdate("D, d M Y H:i:s \G\M\T");

$accept = "audio/" . $audioType.';samplerate=16000' . ", application/json";

$stringToSign = $method."\n".$accept."\n".$bodyMd5."\n".$content_type."\n".$date;

$access_id = $this->access_id;

$ak_secret = $this->ak_secret;

$signature = base64_encode(hash_hmac('sha1',$stringToSign,$ak_secret,true)); $header = [

'Date: '.$date,

'Content-type: '.$content_type,

'Authorization: Dataplus '.$access_id.':'.$signature,

'Accept: '.$accept,

'Content-Length: '.strlen($body)

];

$url = 'http://nlsapi.aliyun.com/speak?encode_type='.$this->audioType.'&voice_name=xiaoyun&volume=50';

$re = $this->curlRequest($url, $body, true, 60, $header);

$file = $file.'.'.$this->audioType;

$f = fopen($file, 'w');

fwrite($f, $re);

fclose($f);

}

}

$access_id = 'xxxxxxxxxxxxxx';//阿里云的access_id

$ak_secret = 'xxxxxxxxxxxxxxxxxxxxxxxxxx';//阿里云的access_key

$audioType = 'mp3';

$text = '床前明月光，疑是地上霜。举头望明月，低头思故乡。';

$obj = new \tts($access_id,$ak_secret,$audioType);

$obj->tts_voice($text,'12');//要转换的文本，生成的文件名