PHP Switch Case

PHP Switch Case is an if-else condition and the only difference is the writing style, it is mainly used when there is a bulk amount of if and else if conditions,

The switch statement in PHP allows you to execute different code blocks based on the value of a variable or expression, similar to a series of if statements. However, it offers several advantages:

Efficiency: switch evaluates the condition only once and compares it with each case, making it faster than multiple if statements, especially for many comparisons.

Readability: It can improve code readability by clearly grouping different code blocks based on specific conditions.

Organization: It helps maintain a cleaner code structure by avoiding nested if statements, which can become complex and difficult to follow.

Common Use Cases:

  • Selecting actions based on user input (e.g., processing different form submissions)
  • Implementing menus and navigation based on choices
  • Performing different operations based on data values (e.g., calculations, database operations)

Key Elements:

  • Expression: Evaluated and compared with each case value.
  • Case statements: Each case represents a possible value, followed by code to execute if the expression matches.
  • break statement: Prevents falling through to subsequent case blocks once a match is found.
  • default statement: Optional, executes if no case matches the expression.

Writing Style of PHP switch case

PHP Switch Case

Inside the switch() function the value to pass and the conditions must be written inside the scope of the switch case or the switch function

then all the conditions must be written using the case keyword and then space and then the desired equal value and after that have to give a colon and after the colon, the code should be started, and each case should be ended with a break statement.

if none of the given conditions are satisfied then have to execute a code then there is a keyword known by default like as PHP else condition, and after default have to give a colon and then the executable code, and the default should stay at the end of the PHP switch case.

if after all cases in the PHP switch case, we have not used the break statement then it will not act like the PHP if else condition, it will go to check the next code of the switch case and it will execute the default case.

one example of a PHP switch case is given below.

Example of PHP switch case:

$favcar = "Honda";

switch ($favcolor) {
case "Maruti":
echo "Your favorite car is Maruti!";
case "Honda":
echo "Your favorite car is Honda!";
case "BMW":
echo "Your favorite car is BMW!";
echo "Your favorite car is neither Maruti, Honda, nor BMW!";

I hope you have learned PHP Switch Case and the post helped you,

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