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"who | w" - Logged-in Users and Their Running Commands
This section provides a tutorial example on how to display logged-in users and their running commands using 'who' and 'w' commands on Linux systems.
2024-08-17, ∼247🔥, 0💬

/proc/{id}/smaps - Process Memory Map Details
This section describes the pseudo file '/proc/{id}/smaps' that represents virtual memory map of a given process with detailed information on each mapped area.
2024-08-17, ∼222🔥, 0💬

Verify Cache Memory with "cp" Command
This section provides a tutorial example to verify the cache memory usage in the RAM free space using a single 'cp' command.
2024-08-17, ∼196🔥, 0💬

GD Library - Draw Graphical Elements
This section provides a tutorial example on how to draw graphical elements using GD Library functions.
2024-08-11, ∼611🔥, 1💬

💬 2024-01-19 &amp;amp;amp;amp;lt;zx&a: great

💬 2022-09-22 alì babbà: commento del piffero!

The Constancy of the Speed of Light
This section provides a thought experiment to help understanding the second assumption of the special theory of relativity: The constancy of the speed of light.
2024-08-08, ∼2075🔥, 75💬

💬 2024-06-25 Hiroji Kurihara: Speed of Starlight A glass cube is floating horizontally in outer space. Two rays of starlight coming from the left and right ar...

💬 2022-11-19 Hiroji Kurihara: Light is Propagated in Two Ways              In outer space, a starlight is reflected by a mirror. There is a formula c = ...

💬 2022-04-30 Hiroji kurihara: Herong, Thanks, for accepting my comments. Now, URL of my web-site is as follows, http://lifeafterdeath.vip/eng.html

💬 2022-04-27 Hiroji kurihara: Sorry, last a few words of my post (04-25's) are missing. It is.... m<m/2+m/2.

💬 2018-12-18 Herong: Hiroji, Thanks for sharing your comment and the article. I will definitely read it.

(More comments ...)

GD Library - Create Transparent Image
This section provides a tutorial example on how to create an image with transparent background using GD Library functions.
2024-07-29, ∼292🔥, 0💬

Transparent Image Over Text Web Page
This section provides a tutorial example on how to display a transparent image floating over Web page text.
2024-07-29, ∼199🔥, 0💬

GD Library - Pad Transparent Image
This section provides a tutorial example on how to pad the transparent background of to expand an image using GD Library functions.
2024-07-29, ∼199🔥, 0💬

PCRE Module and C Library
This section provides a quick introduction on PCRE Library for regular expression operations.
2024-07-29, ∼193🔥, 0💬

preg_quote() - Escape Characters in Pattern
This section provides a tutorial example on how to quote special characters in a string to be used as a regular expression pattern using the preg_quote() function.
2024-07-29, ∼190🔥, 0💬

PCRE Module - Perl Compatible Regular Expressions
This chapter provides tutorial examples and notes on PCRE module. Topics include introduction of commonly used PCRE functions; searching for patterns and retrieving matched substrings; searching array members; replacing substrings; splitting strings; quoting special characters.
2024-07-29, ∼183🔥, 0💬

GD Library of Image Functions
This section provides a quick introduction on GD Library for creating images and managing image files in BMP, GIF, PNG, JPEG formats.
2024-07-29, ∼182🔥, 0💬

OpenSSL Module - Cryptography and SSL/TLS Toolkit
This chapter provides tutorial examples and notes on OpenSSL module. Topics include introduction of commonly used OpenSSL functions; computing digest/hash value; generating private and public key pairs; symmetric encryption and asymmetric encryption; generating digital signatures; sealing (double-en...
2024-07-29, ∼177🔥, 0💬

cURL Module - Client for URL
This chapter provides tutorial examples and notes on cURL module for making HTTP (and other protocol) requests. Topics include creating a cURL handle; sending network request; setting request options; making HTTP POST requests; getting transaction information and error.
2024-07-29, ∼175🔥, 0💬

preg_match() - Regular Expression Match
This section provides a tutorial example on how to search for the first occurrence and all occurrences with a given regular expression pattern using preg_match() and preg_match_all() functions.
2024-07-29, ∼175🔥, 0💬

preg_split() - Split String into Tokens
This section provides a tutorial example on how to split a string with pattern delimiters using the preg_split() function.
2024-07-29, ∼175🔥, 0💬

preg_grep() - Search Array Members
This section provides a tutorial example on how to search for array members with a given regular expression pattern using preg_grep() function.
2024-07-29, ∼169🔥, 0💬

GD Library - Print 2 Pictures on 1 Page
This section provides a tutorial example on how to compose a print page with 2 pictures placed vertically using GD Library functions.
2024-07-29, ∼167🔥, 0💬

preg_replace() - Replace Matched Substring
This section provides a tutorial example on how to search and replace regular expression patterns using preg_replace() and preg_match_filter() functions.
2024-07-29, ∼159🔥, 0💬

"UnitConversion_REST" - REST Web Service
"UnitConversion_REST" is an REST Web service for test purpose only. High level information about this "Hello_REST" Web service: Web service endpoint: http://www.herongyang.com/Serv iceRepresentation of resources: UnitConversion_REST.php Operations: GET and POST Operation parameters: "type", "from", ...
2024-07-22, ≈12🔥, 0💬

About This Book
This section provides some detailed information about this book - PHP Modules Tutorials - Herong's Tutorial Examples.
2024-07-20, ∼197🔥, 0💬

Full Version in PDF/EPUB
Information on how to obtain the full version of this book in PDF, EPUB, or other format.
2024-07-20, ∼214🔥, 0💬

PHP Modules Tutorials - Herong's Tutorial Examples
This PHP tutorial book is a collection of notes and sample codes written by the author while he was learning PHP modules himself. Topics include running PHP scripts on Windows, macOS and Linux; cURL module for getting URL responses; DOM mudule for parsing HTML Documents; GD module for processing ima...
2024-07-20, ∼519🔥, 0💬

Using SOAP Extension in non-WSDL Mode
This section provides a tutorial example on how to use SOAP client functions to make Web service call without using the WSDL standard on the target SOAP node and print detailed debug information.
2024-07-20, ∼8798🔥, 0💬

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