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From:Nathan Wallace Date:Mon Aug  2 10:23:51 1999
Subject:PHP Knowledge Base Update -- August 1st, 1999

I'm back after two weeks sick in bed with the flu and a week playing
catch up for clients.  Miss me? <g>

Cheers,

Nathan


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What's the easiest way to remove characters from the end of a string?
http://e-gineer.com/e-gineer/phpkb/view.phtml/qid/514
------------------------------------------------------------
Matt Allen

See the function substr():

    http://www.php.net/manual/function.substr.php3

For example:

    $rest = substr("abcdef", 1, -1); // returns "bcde"

so to remove characters from the end of a string you can use:

    $rest = substr("abcdef", 0, -2); // returns "abcd"


------------------------------------------------------------
What's the fastest way to include a file directly into a page?
How can I include the raw content of a file into my HTML output?
http://e-gineer.com/e-gineer/phpkb/view.phtml/qid/515
------------------------------------------------------------
Rasmus Lerdorf

ReadFile() will be faster since it doesn't have to check for PHP tags
like include/require.

    http://www.php.net/manual/function.readfile.php3


------------------------------------------------------------
Why are utf8_encode & utf8_decode in the XML module?
Why are utf8_encode & utf8_decode NOT in the string module?
http://e-gineer.com/e-gineer/phpkb/view.phtml/qid/517
------------------------------------------------------------
Rasmus Lerdorf

Because the actual low-level utf8_encode code is part of the expat
library that implements xml.  As of Apache-1.3.7 these functions are
built into Apache and you can compile PHP simply using --with-xml (as of
3.0.12) and you will have access to these functions.  Since the
functions are already in Apache you are not adding any extra code either
since the code is in there whether you use --with-xml or not.


------------------------------------------------------------
Where can I learn more about regular expressions?
What are some good books on regular expressions?
What type of regular expressions are used in PHP?
http://e-gineer.com/e-gineer/phpkb/view.phtml/qid/519
------------------------------------------------------------
Gianluca Baldo, Justin Farnsworth

PHP uses the POSIX extended regular expressions as defined by POSIX
1003.2.

    http://www.php.net/manual/ref.regex.php3

The manual contains some simple examples. If you search the samples
archive you'll surelly find more. Take a look at Dario Gomes Column:

    http://www.phpbuilder.com/columns/dario19990616.php3

is a good starting point.

This book is often recommended for learning regular expressions:

    Mastering Regular Expressions : Powerful Techniques for Perl and 
        Other Tools (Nutshell Handbook)
    by Jeffrey E. Friedl (Editor), Andy Oram (Editor).

    http://www.oreilly.com/catalog/regex/



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