Example: um das gleiche Verhalten zu erreichen. The syntax of the switch statement contains the multiple numbers of cases and a default state which is you can use. In others word PHP switch statement is used to execute one statement from multiple conditions. Be careful if you have mixed types of values in the switch statement.

You can use multiple break statements within a case. Think that you are writing a PHP program for a store and you have some offers based on the age. Then you can attach an If you are going to introduce some adult offers (say for age over 40), you can use an Above code would first check whether the user is a teenage. Something not mentioned in the documentation itself, and only touched on momentarily in these notes, is that the default: case need not be the last clause in the switch. In a switch statement, the condition is evaluated only once and the result is compared to each case statement. I could have used a swich for this, but I found that using the array was much faster. All Rights Reserved. Haven't seen it mentioned here, but at least in my version (PHP 5.2.5) and I'm sure all of PHP 5, the switch statement is a great way to check type safe enumerates that are otherwise missing in the PHP language. Not sure if this has been posted or not, but I found the switch statement useful for finding ranges of data. PHP Switch/Case Abfrage nach mehreren Werten Vereinfachte Abfrage in PHP mit Switch und Case In Verbindung mit Vergleichsoperatoren kann man in PHP-Programmen if-, else-Abfragen verwenden, um Variablen auf bestimmte Werte abzufragen und die Programmausführung davon abhängig zu machen. As this example will show, the possibilities can go beyond even Duff's Device-style craziness (not that this example is nearly as clever as Duff's Device, but it demonstrates how you can do certain things other than simply the increment/decrement/assignment that's possible in C)./* Note the isolation of break; statements and the fact that default: is at the top *//* Flavors available: chocolate, strawberry, vanilla *//* Flavors available: chocolate, strawberry, vanilla */

If that is also false, it would go to the Ternary operator let us return one of two values based on a given condition. Remember, that you also could use functions in a switch. Switch usage for make some actions with all of cases

Please provide your opinion, suggestions and improvements The default case is not necessary to add inside the switch case.

In reply to earlier comment, "switch"- I found this to be one of the best ways to interpret 'actions'. If you want to avoid numeric compare for numeric strings in switch statement, try prepending something non-numeric. Just remember to include another break statement as a failsafe. We use the inversion trick (mentioned by many posters) to make it perform a strict one: It works like PHP if-else-if statement. The switch statement evaluates the cases, top to bottom, until it finds the first one that matches the value being switch()ed on. In following example, if Kontrolle an die Anweisungsliste des nächsten case übergibt. Die alternative Syntax für Kontrollstrukturen wird für switch Anweisungen However, if you want to execute a block of code only if all the cases not matching with the condition or result. It's easy to abuse the switch syntax to do some very useful things. Simply create a new instance of Handler_action before including any content source files. Something fairly simple (and maybe obvious) that I didn't see mentioned is that the default case WILL be executed even if the switched variable does not exist or is undefined. Put those many values into an array and query the array, as the switch-case seems to hide the underlying semantics of what you're trying to achieve when a string variable is used as the condition, making it harder to read and understand, e.g. If your condition is more complicated than a simple compare and/or is in a tight loop, a switch may be faster. "loose comparison" means that switch won't check the type. Leandro. So, for example, if you had: As follow-up to ben dot lancaster at holler dot co dot uk's post: In answer to njones at fredesign dot com, what you're seeing is the way the switch statement is supposed to work. : The PHP switch Statement Use the switch statement to select one of many blocks of code to be executed .

In this example, I use a switch statement (which is inside of a while loop) to alternate the background color of a table row. Alex Pliutau Alex Pliutau. If the variable supplied to switch() is an integer, the cases would be converted to integer before the comparison is made (usually to zero). Thanks to all those who are writing examples - I love this site! often you will have to perform multiple actions in sequence, but this sequence must be broken once one of them detects a stop condition (such as an error, when validating form request variables). They do. The difference between a series of if statements and the switch statement is that the expression you're comparing with, is evaluated only once in a switch statement. Beachten Sie, dass im Unterschied zu einigen anderen Sprachen die