PHP Operator is **a symbol i.e used to perform operations on operands**. In simple words, operators are used to perform operations on variables or values. For example: $num=10+20;//+ is the operator and 10,20 are operands.

The **fmod() function** returns the remainder (modulo) of x/y.

floor() The Math. floor() function **returns the largest integer less than or equal to a given number**.

It's not a surprise that **you can't do math in HTML**; after all, it's a markup language, not a programming language.

If name of a variable has parentheses (with or without parameters in it) in front of it, PHP parser tries to find a function whose name corresponds to value of the variable and executes it. Such a function is called variable function. This feature is useful in implementing callbacks, function tables etc.

**The JavaScript Math object allows you to perform mathematical tasks on numbers**.

PHP Math Functions (**abs, pi, deg2rad, rad2deg, fmod, floor, ceil, round, is_finite, is_infinite**) As you know PHP is a sever side script language and is used for creating dynamic web pages. PHP provides a number of built-in math functions which help in performing several operations while dealing with mathematical data.

PHP Operator is **a symbol i.e used to perform operations on operands**. In simple words, operators are used to perform operations on variables or values. For example: $num=10+20;//+ is the operator and 10,20 are operands.

**Operands of modulo are converted to int before processing**. For floating-point modulo, see fmod().

Arithmetic Operators.

Example | Name | Result |
---|---|---|

$a + $b | Addition | Sum of $a and $b . |

$a - $b | Subtraction | Difference of $a and $b . |

$a * $b | Multiplication | Product of $a and $b . |

$a / $b | Division | Quotient of $a and $b . |

**The Equation Editor is accessible within the HTML Editor**, which enables users to insert mathematical and statistical equations into an HTML page.**Create an equation**

- Enter a Title for your equation.
- Choose the Math Format you want to use and click Apply.
- Enter your equation and click Insert.

Generally, the order in which we perform operations sequentially from left to right is: **division, multiplication, addition, subtraction**. This order is expressed in short as 'DMAS' where 'D' stands for division, 'M' stands for multiplication, 'A' stands for addition and, 'S' for subtraction.

PHP program to Calculate Percentage

php // defining function function cal_percentage($num_amount, $num_total) { $count1 = $num_amount / $num_total; $count2 = $count1 * 100; $count = number_format($count2, 0); return $count; } // calling function to calculate percentage echo "Percentage of 39 in 100 : ".

There are four operations that can be performed when working with whole numbers. These four operations are **addition, subtraction, multiplication, and division**. The most basic of these four operations is addition. Addition is the operation that involves calculating the total amount of a represented group.

Finding the percentage

For this type of problem, you can simply **divide the number that you want to turn into a percentage by the whole**. So, using this example, you would divide 2 by 5. This equation would give you 0.4. You would then multiply 0.4 by 100 to get 40, or 40%.

Advertisements. PHP functions are similar to other programming languages. A function is **a piece of code which takes one more input in the form of parameter and does some processing and returns a value**. You already have seen many functions like fopen() and fread() etc.

Prerequisites. **You will need PHP installed as well as a local programming environment set up on your computer**. To set this up, follow the How to Install PHP 7.4 and Set Up a Local Development Environment for your operating system.

If you're a beginner, then this post is for you, and will make you feel comfortable in running PHP program on XAMPP Server.**Run your first PHP program in XAMPP Server on localhost**

- Download and Install XAMPP.
- Create a new project in XAMPP and add your PHP program.
- Open XAMPP and run your first PHP program.

Generally, the order in which we perform operations sequentially from left to right is: **division, multiplication, addition, subtraction**. This order is expressed in short as 'DMAS' where 'D' stands for division, 'M' stands for multiplication, 'A' stands for addition and, 'S' for subtraction.

PHP Math Functions

Function | Description |
---|---|

abs() | Returns the absolute (positive) value of a number |

acos() | Returns the arc cosine of a number |

acosh() | Returns the inverse hyperbolic cosine of a number |

asin() | Returns the arc sine of a number |

The mathematical “operation” refers to **calculating a value using operands and a math operator**. The symbol of the math operator has predefined rules to be applied to the given operands or numbers.

Simple answer can be given using expression 4 + 5 is equal to 9. Here 4 and 5 are called operands and + is called operator. PHP language supports following type of operators.

Precedence of PHP Operators.

Category | Operator | Associativity |
---|---|---|

Assignment | = += -= *= /= %= | Right to left |

Dated : 26-May-2022

Category : Education