By Sterling Hughes
Hypertext Preprocessor is an open resource, server-side, HTML-embedded scripting language used to create dynamically generated websites. With an easy-to-use syntax and a wide, extensible library of modules, Hypertext Preprocessor makes it quick and simple to create robust data-driven websites for e-commerce, neighborhood portals, and different Web-based applications.The personal home page Developer's Cookbook is a task-based reference designed to offer builders easy-to-follow strategies to universal difficulties they could come across. every one resolution presents entire code listings besides an in-depth clarification of ways and why a specific resolution was once used.
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Extra info for PHP Developer's Cookbook
4 Rounding Arbitrary-Precision Numbers You want to round an arbitrary precision number to a certain decimal place (for example, the hundredths place). > Comments sprintf(), in my opinion, is by far the easiest method of rounding an arbitrary precision number. numf where num is the number of places you want to round to, and sprintf() does the rest for you. However, sprintf() rounds only to normal floating-point precision. You can't use it if you want to round to the fiftieth decimal place. Note To perform arbitrary precision arithmetic you can also use the GMP (GNU MP) extension.
Comments The previous script takes an array of companies and their respective weights, or how often they should be displayed in relation to each other. For example, Microsoft has a weight of 10, which means that it will be displayed more often than Springfield Power Plant that has a weight of 3. We then initialize a foreach loop and loop through the $ads array. For each element of the $ads array, we put it into a new array for the amount of times specified by weight. For example, Microsoft has ten entries in the $dist array.
Technique In PHP, it is unnecessary to preallocate your arrays to a certain length.