By Christopher Cosentino

ISBN-10: 0130085391

ISBN-13: 9780130085399

Take your personal home page programming abilities to the following point, with this hands-on, example-rich instructional! In complicated personal home page for net execs, best-selling Hypertext Preprocessor writer Christopher Cosentino brings jointly dozens of strong new recommendations for development critical net purposes. the way to deal with periods extra successfully, create higher types, advance customized blunders handlers, construct database-independent net functions with PEAR::DB, parse XML records, authenticate clients through database question, construct cross-platform consumer apps with PHP-GTK, and lots more and plenty extra!

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Additional resources for Advanced PHP for Web Professionals

Example text

42 Exit from the for loop. 44 Display the current item total to the user. 45 Display an "Add Items" button. It is used to execute the additems clause in the main program.


34. > 35.

Your settings have been loaded. 36. php>View Your Settings. 37. 38. Figure 2-2. php Script 2-2. php Line-by-Line Explanation LINE DESCRIPTION 2 Start the session or continue an existing session. 3–6 Register session variables for use throughout the session. 8–17 Print out the beginning of the HTML page. 19 Declare a new function, load_user_data(). 20 Allow the function to use and modify variables in the global scope of the script. These variables correspond to the session variables that were registered earlier in the script.

The equals sign should be obvious; it assigns a value to a variable: $a = 4; $b = $a; // $b = 4 Comparison Operators PHP supports the standard comparison operators, as shown in Table 1-1: Table 1-1. "; $sentence_c = $a . "; Top Arrays PHP supports both numerical arrays (array items are indexed by their numerical order) as well as associative arrays (array items are indexed by named keys). $a = array(1, 2, 3, 4); //$a[0] = 1 //$a[1] = 2 //$a[2] = 3 //$a[3] = 4 $b = array("name"=>"Fred", "age" => 30); //$b['name'] = "Fred" //$b['age'] = 30 Top If/Then Statements One of the most common PHP language constructs that you will encounter is the if/then statement.

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Advanced PHP for Web Professionals by Christopher Cosentino

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