【www.gdgbn.com--word】

    

 代码如下 $num = "www.111cn.net";
     $string = "this string has four words.
";
     $string = ereg_replace ("four", $num, $string);
     echo $string;
 
     $num = "49";
     $string = "this string has four words";
     $string = ereg_replace ("four", $num, $string);
     echo $string;
 
 
   $string ="测试用文字";
   echo "**********$string**********

";
   $string = ereg_replace ("^", "
", $string);
   $string = ereg_replace ("$", "
", $string);
   echo "==========$string==========";

本文来源：http://www.gdgbn.com/bangongshuma/26408/