How PHP uses the switch statement to determine the block of code to be executed

Editor to share with you how PHP uses switch statements to determine the code blocks to be executed, I believe most people do not know much about it, so share this article for your reference. I hope you will learn a lot after reading this article. Let's learn about it together.

Switch statement

Switch statements are used to perform different actions based on different conditions.

Long blocks of if..elseif..else code can be avoided by using Switch statements.

If you want to selectively execute one of several code blocks, use the Switch statement.

/ / Syntax: switch (expression) {case label1: code to be executed if expression = label1; break; case label2: code to be executed if expression = label2; break; default: code to be executed if expression is different from both label1 and label2;} / / instance 1 / instance 2:

How it works: evaluate an expression (usually a variable) and compare the value of the expression with the value of case in the structure. If there is a match, the code associated with the case is executed, and after the code is executed, the break statement prevents the code from jumping into the next case to continue execution; if no case is true, the default statement is used.

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