Will the control flow to default also? As it seems something like a condition that will get executed by default.Now once it gets its test value evaluated, the echo ‘child’ statement gets executed and then?.As the age variable is provided as input, the case expression values are evaluated against the test value, the first case is checked, then the condition is not met, control flows to next statement performs synonymous kind of evaluation and keeps on hunting till it gets its relevant expression. Let’s now see the order of processing and how much time will be elapsed in the traversal of control.As in the above case, the age variable shows that the age range mentioned matches ‘7-12’, so we will get ‘child’ in the output.The Switch takes common criterion parameter as input, which is going to take a set of values upon which we need to apply the conditional evaluation for business logic implementation.So you may have got a rough idea after seeing the example displayed above, the example carries the implementation of such a condition using just one ‘switch’ statement rather than putting ourselves into multiple if and else statements.
#PHP SWITCH CASE ALL SOFTWARE#
Web development, programming languages, Software testing & others $age = '7-12'
#PHP SWITCH CASE ALL FREE#
Start Your Free Software Development Course Let’s see a PHP snippet where we are having a range of age and a corresponding message is being displayed to represent category of those people.
Detailed Description of PHP Switch Statement
#PHP SWITCH CASE ALL CODE#
So, always put break work after each case.If we talk in generic coding terminologies then being a novice to coding, you would have seen “if” statement to handle condition checks and do some action on their validations, now let’s take a case that you are writing logic for traffic light systems design and if you look to proceed with the standard if conditions then probably you would end up with one “if”, one “else if or if” and one “else” statement, and if any other synonymous kind of business logic appears where such criterions are high in number and they belong to the same category, then code won’t appear good and for that we have “switch” statement, where you just need to write this statement once only and describe certain cases associated under a common category and business logic to be implemented in association with that. But one thing you should notice here that if you do not put the break work after each case, switch statement also executes the default with the matched case you will get the two code execution after switch statement. This is similar to the else of the if else statement. Switch statement contains a default statement also which execute only when the condition does not match with the case statements. If you are a beginner in PHP, that always put a break after each case to remove any confusion with the switch case statement result. You need to put the break work after each case, if you do not put the break, PHP parse the next case and the other also. But in the switch statement, you match the result with some predefined values arranged sequentially in cases. PHP if statement evaluates the condition and the result if true and if the result is true it executes the code. Difference between PHP switch case and PHP if elseif If you do not add the break statement, the output will execute both the matched case code and the block of code inside the default statement. The example contains a variable $result which will not match with any cases and because of this, the block of code inside the default statement will get executed.ĭon’t forget to add the break statement after each case.
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