Php Switch Statement? Php Switch Case Conditional Statements

In PHP, we use a switch statement for the execution of one statement by specifying multiple conditions. It is an alternative to lớn the if-else if- else statement. Both statements are serving the same purpose as conditional statements.The switch statement in PHP is also known as a switch-case. Different blocks of code are executed for a different number of cases along with the mặc định code block with the switch-case statement.This article will explain different examples for PHP switch-case statements. There are example code snippets along with outputs.

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switch(expression) case name1: // Execute this code when expression=name1 break; case name2: // Execute this code when expression=name2 break; ... Default: // mặc định statement will be executed if none of the cases are matched with the expression
In the Switch block, we compare the expression with each of the case’s values. We can use a break statement after each case for not letting the whole code be executed. The code will run until it finds the true case to be executed. The break statement is optional.If there is no true match for switch expression và any of the cases, PHP executes a mặc định code block.We evaluate the switch conditional statement for once only. Afterward, each case’s value is matched with the value of the expression in the Switch block. In the output, it will either execute the associated code or the default block of code.We can nest switch statements, but it will make our code complex.

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The thing that makes switch-case different from if-else if- else is the execution sequence. In the switch statement, code is executed line by line, and after finding the true case, it does not stop until all the subsequent case statements are not executed. In comparison, the execution is different in the if-elseif-else statement.You can use a break statement at the over of every case to lớn avoid the code execution till the end. It will just execute the true case in the switch block.


The article has discussed the PHP switch-case statement in detail. I hope the examples were quite helpful in understanding how to lớn use the PHP switch statement.