Is ternary operator faster than if in php?

Syntax:

(Condition) ? (Statement1) : (Statement2);

Parameters:

The expression to be evaluated that returns a boolean value is called the condition.

Statement 1: This is the statement that will be executed if the condition is valid.

Statement 2: This is the statement that will be executed if the condition is false.

Code:

$age=19;

print ($age>=18) ? "eligible for vote" : "not eligible for vote";

?>

Explanation:

In the above code a ternary operator has been implemented on the line ($age>=18)? “eligible for vote”: ”not eligible for vote” consists of three parameters as discussed above in syntax condition 1, if $age>=18 is a conditional statement if it is true statement 1 eligible for vote will be printed if condition is not true not eligible for vote will be executed.

Output:

What to Use the Ternary Operator

When we need to simplify if-else statements that simply allocate values to variables based on a condition, we use the ternary operator. The use of a ternary operator reduces the large if-else block to a single line, improving readability and simplifying the code. Quite useful for assigning variables after a form has been submitted.

Just imagine the following code written with simple if else statements as follows

Code:

$score=40;

if ($score>=50){

echo "The result is pass" . "\n";

echo "congratulations" . "\n";

}

else{

echo "The result is Fail". "\n";

echo "Better luck next time" . "\n";

}

?>

Explanation:

In the above example, just use the simple if else statement. If the score is greater than 50 it tends to print the result as pass and congratulations. If the condition is false, it will print the statement under else as the result is fail and better luck next time.

Output:

Instead of this, just use a ternary operator to reduce the coding.

Alternative for Reducing the Code

Code:

$score=40;

print($score>=50) ? "The result is pass congratulations" : "The result is Fail Better luck next time "

?>

Output:

Advantages of Ternary Operator

• It will shorten the code.
• It will improve the readability of the code.
• The code becomes more straightforward.
• Makes basic if/else logic easier to code.
• Instead of breaking your output building for if/else statements,you can do your if/else logic in line with output.
• Shortens the code
• Makes it faster and easier to manage code.

Ternary Shorthand

For fast shorthand evaluation, short ternary operator syntax can be used by omitting the middle part of the ternary operator. Elvis operatory (? ) is another name for it.

Elvis operator can be used to reduce redundancy in your situations and shorten the time it takes you to complete your assignments. It's the ternary operator, but without the second operand. If the operand is valid, it returns the first operand; otherwise, it evaluates and returns the second operand.

Syntax:

Exp1 ?: Exp2

Exp1 refers to expression1

Exp2 refers to expression2

Code:

print $start = $start ?: 1;

?>

Output:

Ifselseif Else or Ternary Operator to Compare Numbers PHP?

Both are the same but professionally it is better to choose a ternary operator.

For example we need to compare two values

$val1=10

$val2=20

Code:

$val1=10;

$val2=20;

$da1=55000;

$output=$val1 ? $val2 : $val2 ? : $da1;

echo "The value is=",$output;

?>

Output:

Null Coalescing Operator

It replaces the ternary operator when used with the isset() function, which checks whether a variable is NULL or not and returns the first operand if the variable exists and is not NULL, otherwise the second operand is returned.The Null coalescing operator checks whether a variable is null and returns the non-null value from a pair of personalized values. The Null Coalescing operator is primarily used to prevent the object feature from returning a NULL value instead of a default optimized value. Since it does not emit E-Notice during execution, it is used to prevent exceptions and compiler errors.The execution order is from right to left. If the right side operand is not null, the return value is the right operand; if it is null, the left operand is the return value. It makes the source code easier to understand.

Syntax

(Condition) ? (Statement1) ? (Statement2);

Alternative Method:

if ( isset(Condition) ) {  

return Statement1;

} else {

return Statement2;

}

Code:

// Coalescing Operator

$num = 10;

// Use Null Coalescing Operator

print ($num) ?? "NULL";

?>

Output:

Advance your career as a MEAN stack developer with the Full Stack Web Developer - MEAN Stack Master's Program. Enroll now!

Conclusion

Using if/else and switch/case statements to evaluate conditions is an essential part of programming. If/else statements are simple to code and can be used in any language. If/else sentences are useful, but they may become excessively long. Ternary operator logic is the method of shortening your if/else structures by using "(condition)? (true return value) : (false return value)" statements.

We hope you find the information provided to be helpful. Join Simplilearn's Post Graduate Program in Full Stack Web Development to learn more about PHP and accelerate your career. In just a few months of intensive training with Simplilearn, you will have mastered modern coding approaches at bootcamp speed, and you will become a full-stack programmer.

You can also learn a number of job-ready courses from the global experts via Skillup for free. Simplilearn's SkillUp is an online platform where users can take free online courses in various subjects. All these courses are absolutely free! Explore them here and get back to us in case of any queries.

Leave your questions in the comments section of this article, and one of our experts will respond as soon as possible!