I cant figure out preg_replace at all, it just looks chinese to me, anyway I just need to remove "
Actually the basic syntax for regular expressions, as supported by
preg_replace and friends, is pretty easy to learn. Think of it as a string describing a pattern with certain characters having special meaning.
In your very simple case, a possible pattern is:
\d meaning a digit (numeric characters 0-9) and
+ meaning: Repeat the expression right before
\d) one or more times. All other characters just represent themselves.
Therefore, the pattern above matches any of the following strings:
&page-0 &page-665 &page-1234567890
preg functions use a Perl-compatible syntax and regular expressions are denoted between slashes (
/) in Perl, you have to surround the pattern in slashes:
$after = preg_replace('/&page-\d+/', '', $before);
Actually, you can use other characters as well:
$after = preg_replace('#&page-\d+#', '', $before);
For a full reference of supported syntax, see the PHP manual.