A Programmer's Introduction to PHP 4.0 by W Jason Gilmore

By W Jason Gilmore

No topic what language you're conversant in, this publication will gain you. starting with a fast advent to PHP's syntax and uncomplicated performance, you'll speedily comprehend Hypertext Preprocessor. The booklet then steers you towards complicated matters, like PHP's function in database manipulation, classes, and person interactivity.

Author W. J. Gilmore additionally examines how personal home page can paintings with XML, JavaScript, and the part item version (COM). He lots the booklet with functional examples and several other initiatives that may be instantly included on any web site. The priceless A Programmer's creation to Hypertext Preprocessor 4.0 indicates you the way to utilize PHP's robust functions, despite your present scope of personal home page knowledge.

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A Programmer's Introduction to PHP 4.0

It doesn't matter what language you're accustomed to, this publication will gain you. starting with a swift creation to PHP's syntax and uncomplicated performance, you are going to speedily comprehend Hypertext Preprocessor. The e-book then steers you towards complex matters, like PHP's function in database manipulation, periods, and consumer interactivity.

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Then, configure, make, and install PHP. You will need to specify the path directory pointing to the apxs file. This file can be found in the bin directory of the path you designated in step 4. 12. /configure -with-apxs=[path/to/apxs] 13. make 14. make install 15. conf file for another modification. conf. This file contains a number of options, which can be modified at the administrator's discretion; a few of these options relate directly to PHP. conf file in your favorite text editor. Towards the end of the file are two lines similar to the following: 16.

This could evaluate to only either true or false. Either $sum equals 40, or it does not. If $sum does equal 40, then the expression evaluates to true. Otherwise, the result is false. Boolean values can also be determined via explicitly setting a variable to a true or false value. "; endif; If the variable $flag has been set to true, then print the appropriate statement; Otherwise, print an alternative statement. 59 An alternative way to represent true and false is by using the values 1 and 0, respectively.

Standard Notation Standard notation is a convenient representation typically used for real numbers, for example, monetary values. 6 Scientific Notation Scientific notation is a more convenient representation for very large and very small numbers, such as interplanetary distances or atomic measurements. 9736e24 51 String Values A string is a group of characters that are represented as a single entity but can also be examined on a character-by-character basis. Some examples of strings are: thesaurus 49ers abc &%/$£ Note that PHP doesn't include support for the char data type.

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