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CGI.pm Module for Building Web Pages
This chapter provides tutorial examples and notes about the CGI.pm Perl model. Topics include CGI.pm introduction; creating HTML documents; retrieving query parameters and header information; retrieving environment information; redirecting to new URI; refreshing Web pages; managing HTTP cookies.
2022-10-11, ∼224🔥, 0💬

What Is XML-RPC?
This section describes what is XML-RPC - a specification on how to make a Remote Procedure call (RPC) by passing XML messages using HTTP requests and responses over the Internet.
2022-11-02, ∼223🔥, 0💬

RPC::XML Client and Data Classes
This section describes the RPC::XML::Client class, the RPC::XML::request class, and data classes.
2022-10-19, ∼223🔥, 0💬

LWP::UserAgent and Web Site Testing
This chapter provides tutorial examples and notes about using LWP::UserAgent Perl class. Topics include introduction of LWP::UserAgent, HTTP::Request, HTTP:Response, and HTTP::Cookies classes; using get(), post() and request() methods to send HTTP requests with GET or POST; following HTTP redirects;...
2022-10-07, ∼223🔥, 0💬

Copy.pl - Copying Binary Files
This section provides a tutorial example of copying a file in binary mode using the binmode() function on input and output.
2022-10-05, ∼223🔥, 0💬

do() Function - Including Script Files
This section provides a tutorial example on how to use do() function to include script code from another file into the current script file.
2022-11-01, ∼222🔥, 0💬

LWP-UserAgent-POST-Redirect.pl - Posting with Redirects
This section provides a tutorial example on how to send a POST request to a Web server with form input data, follow HTTP redirects, and dump all request and response messages .
2022-10-06, ∼222🔥, 0💬

Expressions, Operations and Simple Statements
This chapter provides tutorial examples and notes about expressions, operations, and simple statements. Topics include different examples of expressions; expression evaluation contexts: scalar and list contexts; simple statements: an expression terminated by a semicolon; simple statement modifiers.
2022-11-19, ∼221🔥, 0💬

SubParamList.pl - Example on Parameter List
This section provides a tutorial example on how the parameter list is passed to and received in a user defined subroutine by the local array variable @_.
2022-10-24, ∼221🔥, 0💬

<file_handle> - Reading Data from File Handles
This section describes various ways to use the &lt;file_handle&gt; operator in different ways to read data from file handles.
2022-10-04, ∼221🔥, 0💬

String Related Built-in Functions
This section describes built-in functions to manipulate strings: chop(), length(), index(), substr(), split().
2022-10-17, ∼220🔥, 0💬

HTTP::Cookies save() not Saving Temporary Cookies
This section provides a tutorial example showing that the save() method in the HTTP::Cookies class does not save any temporary (non-persistent) cookies to the cookie jar file.
2022-10-04, ∼219🔥, 0💬

String Built-in Functions and Performance
This chapter provides tutorial examples and notes about string built-in functions and performance. Topics include string built-in functions: chop(), length(), index(), substr() and split() functions; Perl functions are 2 times slower than Java functions.
2022-11-16, ∼218🔥, 0💬

Install Imager::File::PNG Manually
This section provides a tutorial example on how to install Imager::File::PNG Perl module manually from source code files on macOS. Installation failed with wrong architecture in LIBPNG library.
2022-11-03, ∼217🔥, 0💬

Install Xcode Command Line Tools
This section provides a tutorial on how to install Xcode Command Line Tools, which is required to install Perl add-on modules on macOS.
2022-10-25, ∼217🔥, 0💬

Symbolic (or Soft) References
This chapter provides tutorial examples and notes about symbolic (or soft) references. Topics include replacing variable or function identifiers with string expressions in curly brackets {}; using scalar variables without {}; using the dereference operator -&gt; with array, hash, or function sub...
2022-10-04, ∼217🔥, 0💬

"package" Statement - Switching Name Space
This section provides a tutorial example on how to switch name space with the 'package' statement and how to access identifiers from other name space with double colon '::'.
2022-11-24, ∼216🔥, 0💬

Using Array Variables
This section describes how an array variable can be assigned with a list value. Array elements are referred by subscription notation as scalar expressions, like $identifier[i]. An unassigned array variable contains the (undef) value.
2022-10-24, ∼216🔥, 0💬

Defining Returning Values of a Remote Method Call
This section describes how returning values of a remote method call can be defined in XML format. The root element name is 'methodResponse'.
2022-10-05, ∼215🔥, 0💬

Using Hash Variables
This section describes how a hash variable can be assigned with a list value. Hash elements are referred by key subscription notation as scalar expressions, like $identifier{'key'}. An unassigned hash variable contains the (undef) value.
2022-10-12, ∼214🔥, 0💬

Using Scalar Variables
This section describes how a scalar variable can be assigned with a scalar value. An unassigned scalar variable contains the (undef) value. The undef() function removes the assigned value from a scalar variable.
2022-10-08, ∼214🔥, 0💬

RpcXmlClient.pl - RPC::XML Client Sample Program
This section provides a tutorial example on how to write a RPC::XML client sample program, RpcXmlClient.pl, to test remote methods offered by the server sample program, RpcXmlServer.pl.
2022-10-11, ∼213🔥, 0💬

http-equiv="Refresh" Meta Tag not Followed
This section provides a tutorial example showing that the LWP::UserAgent get() method does not follow the http-equiv='Refresh' meta tag in the response.
2022-10-04, ∼213🔥, 0💬

CGI (Common Gateway Interface)
This chapter provides tutorial examples and notes on CGI (Common Gateway Interface). Topics include CGI protocol specifications; environment variables provided by IIS; CGI query string; CGI example program.
2022-11-02, ∼212🔥, 0💬

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