A Programmer’s Introduction to PHP 4.0 phần 9 ppt

... can classes written in Visual Basic be called from C# or C++ (or any other .NET language), a class that was written in Visual Basic can be used as a base class for a class written in C#, and ... searches local variables and parameters for a name before searching instance members. When referring to an instance variable with the same name as a parameter, the this.<name>...

Ngày tải lên: 10/12/2013, 16:15

... Furthermore, there are several advantages to building PHP as a server module, therefore I'll concentrate solely on building PHP both as a static and a dynamic module. As it relates to installa- tion, ... display, and manipulate user input. Chapter 11, “Databases,” highlights PHP s vast support for database servers, focusing on the MySQL database to show how PHP can act...

Ngày tải lên: 27/06/2014, 08:20

... display, and manipulate user input. Chapter 11 , “Databases,” highlights PHP s vast support for database servers, focusing on the MySQL database to show how PHP can act as an efficient inter- face ... want to build PHP as a CGI binary. Furthermore, there are several advantages to building PHP as a server module, therefore I'll concentrate solely on building PHP both a...

Ngày tải lên: 09/08/2014, 12:22

... Global Variables In contrast to local variables, a global variable can be accessed in any part of the program. However, in order to be modified, a global variable must be explicitly declared to ... in which it is declared. PHP variables can be one of four scope types: ã Local variables ã Function parameters ã Global variables ã Static variables Local Variables A variable declared...

Ngày tải lên: 09/08/2014, 12:22

... to N arrays together, appending each to another in the order in which they appear as input parameters. The function’s syntax is: array array_merge (array array1, array array2, . . ., array arrayN) The ... array) array_walk() The array_walk() function provides an easy way to apply a function to several or all elements in an array. Its syntax is: int array_walk(array array, string fu...

Ngày tải lên: 09/08/2014, 12:22

... and instead will just act as the base for a derived class. This kind of class is known as an ab- stract class. An abstract class is useful when a program designer wants to ensure that certain functionality ... 6-5. Chapter 6 132 NOTE Keep in mind that although a class can inherit characteristics from a chain of parents, the parents’ constructors are not called automatically when you...

Ngày tải lên: 09/08/2014, 12:22

... POSIX section. Metacharacters Another cool thing you can do with Perl regexps is use various metacharacters to search for matches. A metacharacter is simply an alphabetical character preceded by a backslash that acts to ... Linking Just as a link can be used to direct a user to an HTML page, it can be used to lead to a PHP- enabled page, as shown here: < ;a href = &q...

Ngày tải lên: 09/08/2014, 12:22

... relational databases. A relational database is essentially a database implementation where all data is organized into related table structures. It is possible to create tables that “relate” to ... can dene the various constructs that the database uses to store the data. ã Data querying: SQL can retrieve data in the database and present it in an easily readable format. ã Data manipu...

Ngày tải lên: 09/08/2014, 12:22

... typical ODBC support in addition to the ability to use these functions to access certain databases that have based their own API on the already existing ODBC API. These database servers are listed ... Functions can be used to interface with the database. This is advantageous in the sense that should you choose to use any other ODBC database (or other database listed above), you alre...

Ngày tải lên: 09/08/2014, 12:22

... for a storage media would be a database, since this also facilitates useful features such as searching and ordering data. I’ll use a MySQL database to store the address information. The table ... stored in a database and is used as the key for retrieving any information stored in the database that is mapped to this UIN. Of course, it is not mandatory that the cookie is used to s...

Ngày tải lên: 09/08/2014, 12:22

... parts of that document should be formatted. For example, you may want a particular word to be boldfaced and another italicized. You may wish to use a particular font for one paragraph and a larger ... 10:25 AM Page 373 function defaultHandler(int parser, string data) { … } The input parameter parser refers to the XML parser handler, and data to the character data that will be h...

Ngày tải lên: 09/08/2014, 12:22

... represents portable code that can be reused to create a different animation without any change to the game canvas. import javax.microedition.lcdui.Image; import javax.microedition.lcdui.game.Sprite; public ... STARTED import javax.microedition.lcdui.*; public class MyPauseCanvas extends Canvas { private Font font = Font.getFont(Font.FACE_PROPORTIONAL, Font.STYLE_BOLD, Font.SIZE_LARGE);...

Ngày tải lên: 12/08/2014, 23:22

... 5000 (at least 9000 with PersonalJava on the 921 0). For PersonalJava, the Java stack used to push Java method call frames is set by default to about 400 KB. If you need a greater Java stack depth, ... sValue is a static and iValue is an instance variable; both are stored in the heap. value1 and value2 are local variables, arg1 and arg2 are method arguments, and all four are s...

Ngày tải lên: 12/08/2014, 23:22

... excluding calls to child methods. Figure 7 .9 shows that the most SYMBIAN AND JAVA 415 JSR 1 79 We’ve touched on Location API for J2ME (JSR 1 79) . The Location APIs will allow many location-based services ... native applications. 8.7 Java and Digital Rights Management Increasingly, suppliers of content such as games, videos, audio, other multimedia material and applications in g...

Ngày tải lên: 12/08/2014, 23:22

... structure under classes/. 446 SPECIFICATIONS OF SYMBIAN OS PHONES Nokia 921 0i Java APIs CLDC 1.0 MIDP 1.0 PersonalJava 1.1.1 JavaPhone OS Version Symbian OS v6.0 UI/Category Series 80 Memory available to user ... interface. MIDLET CLASSES 433 java. microedition.lcdui.game.Layer An abstract class representing a visual element of a game. java. microedition.lcdui.game. L...

Ngày tải lên: 12/08/2014, 23:22