wangatong的博客

$str = "fafaff1sa"; // $preg_re = "/\d/"; //匹配一个数字；等价于[0-9] //$preg_re = "/\D/"; //匹配除数字以外任何一个字符；等价于[^0-9] //$preg_re = "/\w/"; //匹配一个英文字母、数字或下划线；等价于[0-9a-zA-Z_] $preg_re = "/\W/"; //匹配除英文字母、数字和下划线以外任何一个字符；等价于[^0-9a-zA-Z_]..

composer create-project topthink/think tpcomposer update

str_replace(array("\r\n","\n","\r"),"#13",变量)