"Today in the news, MySQL previews..."

As a "preview" of text, this MySQL select will return the first few words out of a text field in a database. It returns entire words (doesn't cut them off in the middle) and follows the last word with an elipse "..."

In the PHP, assign $CharactersToDisplay to a number - the approximate number of characters desired (or you can hard-code it if you want).

For the example, I also use $TheID as the row identity for the record to display.

Here is a pair of function to use in combination. The first one will change newlines into tags to store into a database. The second one does the reverse so you can edit the content of the database without having the tags show when you edit the content. If you can find improvements or have comments please let me know

A database API written in Perl for a MySQL.

You will need to edit the settings for your server.

Enojy

This little tool is pretty useful for administrators who wear the hat of both system admin and DBA on Linux/MySQL boxes. I wrote it as kind of a joke for our Perl developers, but now I use it just about every day for everything from at prompt hackups to full on table space utilization monitoring scripts.

The snippet has the library script that you can source into scripts that actually do work, as well as a script that uses the functions in the libraries. Anyone who has used the C API should be able to relate to using this script.

It's pretty fast and lightweight. It makes only one external call to mysql and sed per query. The rest is all bash builtins. Requires bash > 3.0

List the databases on a MySQL serve

Creates a new user with all privileges when logging in from localhost.

Connect to MySQL db & display result from Table query

I use this method for keeping my sql templates away from my code.

You can extend upon the idea, as I have done in the past, by placing SQL handing classes between your scripts and the template library.

Things to note here:

The lesser userd heredoc string method. The reason this is used is to keep the SQL clear and well laid out, and not as messy as using quotes.

vsprintf() is a very handy function if you don't want to hard code the number of parameters to interpolate your string with.

The use of sprintf templates offers you additional security. For example, only allowing numbers to be placed where a %d falls. This, of course, shouldn't be the only security on user supplied variables, but comes in extra handy for debugging purposes.

Regarding the TODO in there, it would take a check of the number of % placeholders there are in the template. One caveat is remembering to remove the count of %%'s that appear (the literal percentage).