PHP Numbers

In PHP, numbers can be represented in various formats, such as integers, floats, and doubles. Here’s some information about each type:

• Integers: Integers are whole numbers without decimal points. In PHP, integers can be represented in decimal (base 10), binary (base 2), octal (base 8), or hexadecimal (base 16) formats. For example:

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$decimal = 10;      // Decimal integer
$binary = 0b1010;   // Binary integer (10 in decimal)
$octal = 012;       // Octal integer (10 in decimal)
$hexadecimal = 0xA; // Hexadecimal integer (10 in decimal)

• Floats: Floats, also known as floating-point numbers or real numbers, represent numbers with a fractional part. They are typically written with a decimal point or in scientific notation. For example:

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$float = 3.14;           // Float
$scientificNotation = 1.2e3;  // 1.2 * 10^3 (1200 in decimal)

• Doubles: In PHP, the term “double” is often used interchangeably with “float.” It refers to floating-point numbers with double precision. The “double” type is not explicitly defined in PHP; rather, it is a synonym for “float.”

PHP provides various functions and operators for working with numbers. Here are a few examples:

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$number = 5;
$incremented = $number + 1;      // Addition
$decremented = $number - 1;      // Subtraction
$squared = $number ** 2;         // Exponentiation
$modulo = $number % 2;           // Modulo (remainder of division)

These are just a few basics about numbers in PHP. PHP offers extensive mathematical functions and operators that allow you to perform various operations and manipulations on numbers.