What best practices should be followed when handling conditional statements in PHP?

When handling conditional statements in PHP, it is important to follow best practices to ensure code readability and maintainability. This includes using clear and descriptive variable names, properly indenting code blocks, and avoiding nested conditional statements whenever possible. Additionally, it is a good practice to use strict comparison operators (=== and !==) to compare values and to use elseif instead of nested if statements to improve code clarity. 

// Example of best practices for handling conditional statements in PHP

$age = 25;

// Using clear and descriptive variable names
if ($age >= 18) {
    echo "You are an adult.";
} else {
    echo "You are a minor.";
}

// Properly indenting code blocks
if ($age >= 21) {
    echo "You are old enough to drink.";
} else {
    echo "You are not old enough to drink.";
}

// Using strict comparison operators
$number = "10";
if ($number === 10) {
    echo "The number is equal to 10.";
} else {
    echo "The number is not equal to 10.";
}

// Using elseif instead of nested if statements
$grade = 85;
if ($grade >= 90) {
    echo "A";
} elseif ($grade >= 80) {
    echo "B";
} elseif ($grade >= 70) {
    echo "C";
} else {
    echo "F";
}

Keywords

if statement else statement switch statement ternary operator error handling

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