推荐4-ChineseUtil v1.1.2 发布，PHP 中文工具包

"require": {
    "yurunsoft/chinese-util" : "~1.0"
}

use \Yurun\Util\Chinese;
use \Yurun\Util\Chinese\Pinyin;
$string = '恭喜發財！123';
echo $string, PHP_EOL;

echo '全拼:', PHP_EOL;
var_dump(Chinese::toPinyin($string, Pinyin::CONVERT_MODE_PINYIN));

echo '首字母:', PHP_EOL;
var_dump(Chinese::toPinyin($string, Pinyin::CONVERT_MODE_PINYIN_FIRST));

echo '读音:', PHP_EOL;
var_dump(Chinese::toPinyin($string, Pinyin::CONVERT_MODE_PINYIN_SOUND));

echo '读音数字:', PHP_EOL;
var_dump(Chinese::toPinyin($string, Pinyin::CONVERT_MODE_PINYIN_SOUND_NUMBER));

echo '自选返回格式 + 以文本格式返回 + 自定义分隔符:', PHP_EOL;
var_dump(Chinese::toPinyin($string, Pinyin::CONVERT_MODE_PINYIN | Pinyin::CONVERT_MODE_PINYIN_SOUND_NUMBER, ' '));

echo '所有结果:', PHP_EOL;
var_dump(Chinese::toPinyin($string));

echo '不分割无拼音字符:', PHP_EOL;
var_dump(Chinese::toPinyin($string, Pinyin::CONVERT_MODE_PINYIN, ' ', false));

// 结果太长，请自行运行代码查看

use \Yurun\Util\Chinese;
$string2 = 'xianggang';
echo '"', $string2, '"的分词结果:', PHP_EOL;
var_dump(Chinese::splitPinyin($string2));
/**
输出结果:
"xianggang"的分词结果:
array(2) {
  [0]=>
  string(12) "xi ang gang "
  [1]=>
  string(11) "xiang gang "
}
 * /

use \Yurun\Util\Chinese;
$string3 = '中华人民共和国！恭喜發財！';
echo '"', $string3, '"的简体转换:', PHP_EOL;
var_dump(Chinese::toSimplified($string3));
echo '"', $string3, '"的繁体转换:', PHP_EOL;
var_dump(Chinese::toTraditional($string3));
/**
输出结果:
"中华人民共和国！恭喜發財！"的简体转换:
array(1) {
  [0]=>
  string(39) "中华人民共和国！恭喜发财！"
}
"中华人民共和国！恭喜發財！"的繁体转换:
array(1) {
  [0]=>
  string(39) "中華人民共和國！恭喜發財！"
}
 * /

use Yurun\Util\Chinese\Number;
function test($number)
{
    $chinese = Number::toChinese($number, [
        'tenMin'    =>  true, // “一十二” => “十二”
    ]);
    $afterNumber = Number::toNumber($chinese);
    echo $number, '=>', $chinese, '=>', $afterNumber, '=>', 0 === bccomp($number, $afterNumber, 20) ? 'true' : 'false', PHP_EOL;
}

test(1.234);
test(-1234567890.666);
test(pi());
/**
输出结果:
1.234=>一点二三四=>1.234=>true
-1234567890.666=>负十二亿三千四百五十六万七千八百九十点六六六=>-1234567890.666=>true
3.1415926535898=>三点一四一五九二六五三五八九八=>3.1415926535898=>true
 */

use Yurun\Util\Chinese\Money;
function test($number)
{
    $chinese = Money::toChinese($number, [
        'tenMin'    =>  true, // “一十二” => “十二”
    ]);
    $afterMoney = Money::toNumber($chinese);
    echo $number, '=>', $chinese, '=>', $afterMoney, '=>', 0 === bccomp($number, $afterMoney) ? 'true' : 'false', PHP_EOL;
}

test(1.234);
test(-1234567890.666);
/**
输出结果:
1.234=>壹圆贰角叁分肆厘=>1.234=>true
-1234567890.666=>负壹拾贰亿叁仟肆佰伍拾陆万柒仟捌佰玖拾圆陆角陆分陆厘=>-1234567890.666=>true
 */