Unlike scalar variables, which assign only a single value to a variable, an array variable can hold multiple values.Arrays are useful for holding values from database queries or web form entries, where each field (also called a “key”) holds a specific value.
Tag: PHP
PHP User Survey Part V: Administration Layer
n the last piece on our PHP online user poll, we look at the administrative service and how the site supervisor enters, deletes and manages the poll data.The first poll administrative page checks if the administrator is logged in. You can choose from Session variables or Cookies to check the site administrator login status.Once the application has confirmed the identity of the site administrator, the page lists the available polls.
PHP User Survey Part IV: Presentation Layer
So far in this series, we have developed the data layer (database tables) and the business layer (PHP methods) for manipulating the data.In this piece, we will look at the presentation layer that is used to display the poll question and poll results.The HTML header will check for the presence of a cookie (in case the user has voted previously) and refresh the page if it has timed out.
PHP User Survey: Setting Variable Values and Reading from Tables
In Part I of this series, we started the process of creating user polls for a business web site. Part I gave the layout of the data layer and began the construction of the class file. In this part we will continue with adding methods to the class file that will enable the administrator to set the variable values and read from the database tables.
Creating a PHP User Survey: Writing to Database Tables
In the first two parts of this series, we created the data layer that will hold the polling data and established methods for setting the variable values and reading from the database tables. In this part, we will build the methods that will write new polls and answers to the tables.