Written on October 13th, 2017 by Karl Hughes Show
Like any programming language, PHP supports conditional statements to execute specific blocks of code if a statement is true (or false) or some condition is met. If you’re familiar with conditional statements in other programming languages PHP should give you no trouble, but there are a couple lesser-known operators (ternary and null coalescing) that will be covered at the end. “if” and “else”Let’s look at a simple
Upon execution, this script will output “elseif”But what if we have three or more possible values for our variable? We may want to test a number of conditions and take a different path for each. You can do this by nesting
In this example, if the random integer generated is equal to Ternary Operators
Let’s break this down piece by piece:
So the above script will write Ternary Shorthand and Null CoalescingFinally, PHP has two ways to further shorten ternaries, but one (null coalescing) is only available in PHP 7+. If we just want to output the number generated by a random number generator, then we could shorten our code like so:
If the number is
The above script will throw an error because
This script will output Like this Post?Learn to build your first Dockerized PHP application.In this book, PHP developers will learn everything they need to know to start building their applications on Docker, including:
You can buy this book on Leanpub today. Buy it Now! What is conditional operator explain with example?An Example of Conditional Operators
The conditional operator "&&" first evaluates whether its first operand (i.e., number % 2 == 0) is true and then evaluates whether its second operand (i.e., number % 4 == 0) is true. As both are true, the logical AND condition is true.
What is a conditional operator in PHP?ternary operator: The ternary operator (?:) is a conditional operator used to perform a simple comparison or check on a condition having simple statements. It decreases the length of the code performing conditional operations. The order of operation of this operator is from left to right.
What is conditional statement in PHP with example?PHP Conditional Statements
if statement - executes some code if one condition is true. if...else statement - executes some code if a condition is true and another code if that condition is false. if...elseif...else statement - executes different codes for more than two conditions.
Which is an conditional operator?The conditional operator (? :) is a ternary operator (it takes three operands). The conditional operator works as follows: The first operand is implicitly converted to bool . It is evaluated and all side effects are completed before continuing.
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