Conventions used
There are a number of text conventions used throughout this book.
Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “In PHP, the values that are passed via a form are stored in the $_POST global variable, but we do not use it.”
A block of code is set as follows:
$search = $this->getUserStateFromRequest( $this->context . '.filter.search', 'filter_search');
When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:
<field name="customer" type="text" label="COM_SPM_INVOICE_CUSTOMER" filter="int" />
Any command-line input or output is written as follows:
$userid = $_POST['userid']; $query = "SELECT * FROM users_table WHERE userid = $userid";
Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “Create the package and click on Submit.”
Tips or important notes
Appear like this.