The modus operandi for this is similar to that taken by PHP's implementation of such functions. It's comparitively memory-intensive, but is much faster than running a whole bunch of tests.

Basically, you set a mask -- an array of 256 null bytes -- and set those that correspond to characters you wish to trim. Then, rather than having to test if a character is in the set of characters to trim(O(n), or linear time on *ws), you just test once (O(1), or unit time) to see if the byte in question is set.

And of course, to trim(), you just wrap trim() around both ltrim() and rtrim().

One point of caution: these functions trim in place, so copy strings before trimming them. (Of course, if you usually want access to both pre- and post-trimmed strings, you could always make these malloc() a new string and return a pointer to it . . . )

Turns any string backwards. If you input "Test" it gives out "tseT". Hope it's useful.

The snippet shows how to use it.

Implementation of file_put_contents for PHP4

Generate multi select box from data in db, then when submitted, each selection is written to a db table as it's own record, each tied together by a common record id.

A simple MySQL class for use in PHP.
Feel free to suggest improvements.

A proof of concept idea I had for implementing an aspect oriented framework in PHP (yes, I know about http://aophp.net, but it requires a module).

I thought it was neat, so I'm going to share it.

Hope someone likes it.

Using the extract() Functio

This code, working with MovableType, creates a tag cloud of tags entered into the keyword field of a blog entry. You can see the results and read my write-up which explains some other things that help with MovableType and tag clouds. I got this code from Al-Muhajabah and made a few minor tweaks. Put the PHP snippet below inside a MT template that creates a php page.

I use this function when passing an array to a function being called from setTimeout();

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