What is a Conditional Statement in PHP?

A conditional statement in PHP is a programming construct that allows you to execute different blocks of code based on whether a specified condition evaluates to true or false. It enables you to create dynamic and flexible code logic by controlling the flow of execution based on various conditions.

Conditional statements in PHP include:

PHP conditional statements, like if, else, elseif, and switch, control code execution based on specified conditions, enhancing code flexibility and logic flow.

if statement:

PHP if statement executes a block of code if a specified condition is true.

if (condition) {
    // Code to execute if condition is true
}

else statement:

PHP else statement executes a block of code if the condition of the preceding if statement evaluates to false.

if (condition) {
    // Code to execute if condition is true
} else {
    // Code to execute if condition is false
}

else if statement:

PHP else if statement allows you to evaluate multiple conditions sequentially and execute the corresponding block of code if any condition is true.

if (condition1) {
    // Code to execute if condition1 is true
} elseif (condition2) {
    // Code to execute if condition2 is true
} else {
    // Code to execute if both condition1 and condition2 are false
}

switch statement:

PHP switch statement provides an alternative to multiple elseif statements by allowing you to test a variable against multiple possible values and execute different blocks of code accordingly.

switch (expression) {
    case value1:
        // Code to execute if expression equals value1
        break;
    case value2:
        // Code to execute if expression equals value2
        break;
    // More cases can be added as needed
    default:
        // Code to execute if expression doesn't match any case
}