SAMS Teach Yourself PHP in 24 Hours, 3rd Edition courtesy of the Association for Computing Machinery

This post was created as a reference point.

PHP Standard Data Types

There are 6 standard data types in PHP. They are:

Integer

Double

String

Boolean

Object

Array

There are also 2 Special Data Types. They are:

Resource

Null

Testing for a specific data type.

Functions to test data types

is_array()

is_bool()

is_double()

is_int()

is_object()

is_string()

is_null()

is_resource()

Operators and Expressions

An operator is a symbol or series of symbols that, when used in conjunction with values, performs an action and usually produces a new value.

An ...

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PHP Best Practices & Notes

The following notes are listed for reference to PHP development.

MySql

MySql Query Example
// mysql_query(“SELECT * FROM searchengine WHERE keywords LIKE ‘%mike%’ OR keywords LIKE ‘%stratton%’”);

Apache

PHP

PHP Safe Mode is deprecated.

http://php.net/manual/en/features.safe-mode.php

The following php script can test the connection to your database.
Create a php file with the following code and save as test.php. Upload to your web server and run the script from a browser.
<?php
$host = ‘localhost’;
$user = ...

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