$fullStr = '01【demo';
$semiangleStr = '01[demo';
// full to semiangle
echo Str::angleConvert($fullStr,0).PHP_EOL;
// semiangle to full
echo Str::angleConvert(semiangle,1).PHP_EOL;
$word = '下一步,鄞州区白鹤街道将启动“两路两侧”靓化行动,在恢复清爽环境的甬台温铁路沿线(鄞州黄鹂社区段)补种绿化,进一步提升城市品位和“颜值”,改善周边居民的生活环境。??';
$count = Str::getWordCount($word);
echo "count : ".$count.PHP_EOL;