PHP OPERATORS HOW TO
PHP OPERATORS CODE

PHP OPERATORS CODE

Our PHP code below will display the difference. PHP divides the operators into the following groups: Arithmetic operators Assignment operators Comparison operators Increment/Decrement operators. In addition to this “shorterhand” technique, you can specify whether you want to increment before the line of code is being executed or after the line has executed. $x– Which is equivalent to $x -= 1 or $x = $x – 1.To subtract 1 from a variable, or “decrement” use the “–” operator: $x++ Which is equivalent to $x += 1 or $x = $x + 1.

In order for a browser to recognize PHP, you need to wrap it in brackets: .

Besides PHP itself, they can contain text, HTML, CSS, and JavaScript. Including PHP in a File PHP files end in.

PHP OPERATORS HOW TO

To add one to a variable or “increment” use the “++” operator: PHP Cheat Sheet The Basics We are starting off with the basics how to declare PHP in a file, write comments, and output data. This may seem a bit absurd, but there is even a shorter shorthand for the common task of adding 1 or subtracting 1 from a variable. In general, “+=” and “-=” are the most widely used combination operators. Here are some examples of other common shorthand operators. The downside to this combination operator is that it reduces code readability to those programmers who are not used to such an operator.

This combination assignment/arithmetic operator would accomplish the same task. However, there is a shorthand for doing this. Say you want to increment a counter by 1, you would have:

The most common example of this is a counter. In programming it is a very common task to have to increment a variable by some fixed amount. Hello Billy! Combination Arithmetic & Assignment Operators Here are the most important comparison operators of PHP.Īs we have already seen in the Echo Lesson, the period “.” is used to add two strings together, or more technically, the period is the concatenation operator for strings. Comparison operators are used inside conditional statements and evaluate to either true or false. If you would like to see a simple example of a comparison operator in action, check out our If Statement Lesson. Comparison OperatorsĬomparisons are used to check the relationship between variables and/or values.

In this case it was 5 / 2, which has a remainder of 1. Modulus is the remainder after the division operation has been performed. Arithmetic Operators Example Name Result +a: Identity: Conversion of a to int or float as appropriate.

Php operators