Aaron Weiss, Author at ServerWatch https://www.serverwatch.com/author/aaron-weiss/ ServerWatch is the leading IT resource on all things server. Tue, 10 Nov 2020 16:11:27 +0000 en-US hourly 1 https://wordpress.org/?v=6.3.2 Welcome to the World of PHP Page 11 https://www.serverwatch.com/servers/welcome-to-the-world-of-php-page-11/ Tue, 20 Jul 2010 00:00:00 +0000 https://www.serverwatch.com/2020/09/14/welcome-to-the-world-of-php-page-11/ Object Orientation What might be an object? We could say that the concept of a “car” is an object. A car can possess a number of variables — a list of colors, model name, model year, manufacturer, wheel size, fuel capacity, invoice price, and so on. We could even imagine that this “car” object has […]

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]]> WML Page 3 https://www.serverwatch.com/servers/wml-page-3/ Tue, 20 Jul 2010 00:00:00 +0000 https://www.serverwatch.com/2020/09/14/wml-page-3/ “And so as wireless begat WAP, WAP in turn begat WML …”, as they might have said in Biblical times had they been writing about content delivery over wireless networks. The Wireless Markup Language, WML, will strike a familiar chord to anyone who has ever worked with the HTML behind most Web pages. In fact, […]

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]]> WAP! Page 2 https://www.serverwatch.com/servers/wap-page-2/ Tue, 20 Jul 2010 00:00:00 +0000 https://www.serverwatch.com/2020/09/14/wap-page-2/ While configuring Apache to deliver wireless data is relatively simple, as we will discuss shortly, it is helpful to understand the context of the issues surrounding wireless content delivery. Land-based Internet communications move data around the world using the TCP/IP protocol. This protocol helps “packets” of data navigate the complex routes across networks, changing paths […]

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]]> The Truth About Servers Page 8 https://www.serverwatch.com/servers/the-truth-about-servers-page-8/ Tue, 20 Jul 2010 00:00:00 +0000 https://www.serverwatch.com/2020/09/14/the-truth-about-servers-page-8/ Appliance ‘Servers’ “Appliance” in marketing lingo doesn’t really refer to a type of server, per se, but a type of packaging or bundling. In fact, the term “appliance server” simply refers to any type of server that is sold already set up and configured, and ready to be added into a network. So, when IBM […]

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]]> Configuring Apache Page 4 https://www.serverwatch.com/servers/configuring-apache-page-4/ Tue, 20 Jul 2010 00:00:00 +0000 https://www.serverwatch.com/2020/09/14/configuring-apache-page-4/ By and large, the Web server doesn’t need much tweaking to deliver WML pages to a wireless device. As far as Apache is concerned, it needs only to know how to recognize the MIME type of the file, based on the file’s file name extension. Apache will pass this MIME type to the receiving browser […]

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]]> The Truth About Servers Page 5 https://www.serverwatch.com/servers/the-truth-about-servers-page-5/ Tue, 20 Jul 2010 00:00:00 +0000 https://www.serverwatch.com/2020/09/14/the-truth-about-servers-page-5/ Proxy Servers But a proxy server can do more than just cache frequently accessed data. Because the proxy server “hears” and services requests from its clients, the clients themselves do not necessarily need any direct Internet access at all. Consequently, the proxy server became a very popular way to bridge a local network, also known […]

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]]> Development Simulation Page 5 https://www.serverwatch.com/servers/development-simulation-page-5/ Tue, 20 Jul 2010 00:00:00 +0000 https://www.serverwatch.com/2020/09/14/development-simulation-page-5/ You might be thinking, configuring Apache to deliver WML sounds nice in theory, but how can we see it in action? Without a wireless phone, aren’t we flying blind? Fortunately, no. If you’re doing any development at all in WML, and also want to test drive your Apache configuration in delivering WML pages, check out […]

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]]> Control Statements Page 9 https://www.serverwatch.com/servers/control-statements-page-9/ Tue, 20 Jul 2010 00:00:00 +0000 https://www.serverwatch.com/2020/09/14/control-statements-page-9/ the “if … else” statement A programming classic — the if … else statement is u sed to execute a block of code when a given condition is true. Optionally, you can execute an alternative block of code if the condi tion is false, or test additional conditions. if (conditional expression) { ...code to execute […]

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]]> Welcome to the World of PHP Page 8 https://www.serverwatch.com/servers/welcome-to-the-world-of-php-page-8/ Tue, 20 Jul 2010 00:00:00 +0000 https://www.serverwatch.com/2020/09/14/welcome-to-the-world-of-php-page-8/ Operations and Co mparisons $val3=(5-$val1)+$val2; This statement actually consists of three expressions: the assignment operation, between $val3 and everything to the right of the equal sign; the addition operation between $val2 and the expression to the left of the plus sign; and finally, the subtraction operation within parentheses. Why the parentheses? It raises the issue […]

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]]> Data Collection:Arrays Page 6 https://www.serverwatch.com/servers/data-collectionarrays-page-6/ Tue, 20 Jul 2010 00:00:00 +0000 https://www.serverwatch.com/2020/09/14/data-collectionarrays-page-6/ Assigning a collection of values to an array variable is simple when using the array() construct: $co lors = array("blue","indigo","yellow"); Or, if you know that you want to create an array $ colors but don”t yet know what values to fill it with, create an empty array: $colors = array(); Adding new v alues to […]

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