How can we extract string ‘abc.com ‘ from a string ‘http://info@abc.com’ using regular expression of PHP?

It can extract sub- strings of any series using a range of specifications within the parentheses. ... s := "abc" s[2] := "" s now has a value of "ac" s := "abcdefg" s[3:5] 

you can use the split command to split your string and then you can get the domain of any email

$test=split("@",$Email);