PHP - Advanced Tutorial

PHP - Advanced Tutorial Gulev December 6, 2002. Veracruz, Mexico Rasmus Lerdorf http://lerdorf.com/veracruz.pdf

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Agenda

PHP-MySQL Cookie Handling Dynamic Images PDF Flash Sessions Security Tips & Tricks Optimization Latest Developments Future

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Setup

December 6, 2002

Check your PHP Setup for MySQL support

If not enabled Very rare since a MySQL client library is distributed with PHP and built into PHP by default. However, it is possible to build PHP without MySQL support. Some possible fixes: apt-get install php-mysql rpm -Uvh php-mysql-4.2.2-1.i386.rpm

./configure --with-mysql=shared,/usr cp modules/mysql.so /usr/local/lib/php extension_dir=/usr/local/lib/php extension=mysql.so

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Sanity Check

Make sure MySQL is running prompt:~> mysqlshow +-----------+ | Databases | +-----------+ | mysql | | test | +-----------+

Or with the latest PHP

Output: Uptime: 6717 Threads: 1 Questions: 1 Slow queries: 0 Open tables: 0 Queries per second avg: 0.000

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Opens: 6

Flush tables: 1

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Connecting to MySQL

The simple connection

Output: Resource id #28

Other variations

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Persistent Connections

The simple connection

Output: Resource id #31

Caveats o Watch out for multi-credential connections o Make sure you match up max_connections and MaxClients

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Creating a Database

Create a DB

Output: Database foo created

Create a Table