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Basics Code is written inside <?php ?> tags. echo outputs one or more strings separated by commas, concatenated with dots. PHP_EOL is the newline constant. print outputs only one string and always returns 1. Ternary operator ?: e.g., 1+2==3 ? 4 : 5 returns 4 if true, else 5. Null coalescing operator ??: $a ?? "b" returns $a if ...

Arrays represent a fundamental data structure in C++ that stores collections of elements of the same type in contiguous memory locations. Each element can be accessed through its unique index, enabling efficient data manipulation and storage operations. Array Fundamentals A one-dimensional array organizes elements in a linear sequence. The key ...

Extension functions in Kotlin allow adding new functionality to existing classes without modifying their source code. These functions are defined outside the class they extend and operate on instances of that class, known as the receiver type. For example, to retrieve the last character of a string, define a extension function: fun String.lastC ...

Python Decorators Basic Decorator Implementation import time def main(): time.sleep(3) print('Executing main function') def secondary(): print('Executing secondary function') def utility(): print('Executing utility function') def timer_decorator(func_name): def wrapper(): # Record start time ...

Python is a versatile and popular programming language. For beginners, choosing the right book is crucial for building a solid foundation. Here are some highly recommended titles that cover core concepts, practical examples, and project-based learning. "Python Crash Course" by Eric Matthes is an excellent starting point. It's a hands- ...

TCL Language Fundamentals: Syntax and Core Commands Variable Declaration and Output In TCL, variables are declared using the set command. This declaration occurs automatically when needed, preventing errors from undeclared variables. However, commands like puts require variables to be declared first. In TCL, variables are essentially strings, a ...

Perl excels at text extraction, report generation, and system administration atuomation. Created during the late 1980s, it integrates capabilities from shell scripting, awk, and C. Administrators frequently deploy it for log analysis, while bioinformatics researchers rely on its pattern-matching strengths for genomic data processing. Setting up ...

Table of Contents What is C++ C++ Keywords (C++98) Namespaces Namespace Usage C++ Input & Output Default Parameters Function Overloading References Inline Functions What is C++ C++ is an object-oriented high-level programming language that was developed based on the foundations of the C language. C++ Keywords (C++98) C++ contains a total ...

The plot command serves as the fundamental tool for rendering two-dimensional graphs within the MATLAB environment. When invoked with two vector arguments, such as plot(horizontal, vertical), the system maps the values of the second argument against the first. If matrix inputs are provided, the function iterates through columns or rows dependin ...

Introduction to Python What is Python? Python is a high-level, interpreted, object-oriented scripting language. Like Java, C/C++, and Go, Python is classified as a high-level programming language. As an interpreted language, Python executes more slowly than compiled languages such as C and C++. However, Python offers significant advantages: it ...