Question

I have a string which I store book pages. It’s something like this:

///0///
Page1 Text
///1///
Page2 Text
///2///
Page3 Text
///3///

I want to extract page texts (Page1 Text, Page2 Text, Page3 Text). Here is the Regular Expression which is am using:

$format = "%///\d*///(.*)///\d*///%";
preg_replace_callback($format, "process_page", $text);

According to this page I can use other character than / in the start and end of the expression. So I used % to simplify my pattern, so I don’t have to use escape character like this \/

It seems okay to me, but it return nothing. Can somebody please tell me where is the problem?

Answer 1

I think preg_split might be a better option for you:

$text = '
Page1 Text
///1///
Page2 Text
///2///
Page3 Text
';

$format = "%///\d+///%";
$arr = preg_split($format, $text);

// $arr = Array
// ( 
//     [0] => Page1 Text
//
//     [1] => 
// Page2 Text
// 
//     [2] => 
// Page3 Text
// )

Each page is now in it’s own array element.