Question - How can we extract string 'abc.com ' from a string http://info@abc.com using regular expression of php? 
          
        
        Answer - 
         We can use the preg_match() function with "/.*@(.*)$/" as 
the regular expression pattern. For example: 
preg_match("/.*@(.*)$/","http://info@abc.com",$data);
echo $data[1];