Php Switch Case Default

Uniquement lorsqu une instruction case est trouvée dont l expression est évaluée à une valeur qui correspond à la valeur de l expression switch php exécute alors les instructions correspondantes.

Php switch case default. Pada tutorial ini akan di jelaskan tentang. Belajar php penggunaan switch case pada php. L instruction switch est exécutée ligne par ligne. Only when a case statement is found whose expression evaluates to a value that matches the value of the switch expression does php begin to execute the statements.

Also note that you for unknown reason for me are allowed to use semicolons along colon for case and default entries. Php s switch doesn t just allow you to switch on the value of a particular variable. The default case can appear in any order in the switch statement. In most cases it shouldn t because you would often have breaks in there however in your case it would also go to the default.

Use break to prevent the code from running into the next case automatically. You can use any expression as one of the cases. It is important to understand how the switch statement is executed in order to avoid mistakes. If no matching cases are found the program continues to the default label.

The switch statement executes line by line actually statement by statement. If multiple cases matches a case value the first case is selected. If there is a match the block of code associated with that case is executed. Au début aucun code n est exécuté.

Il est important de comprendre que l instruction switch exécute chacune des clauses dans l ordre. Most of the time you ll want to run specific code for particular cases and some kind of normal situation code for any other cases. The default case specifies the switch section to execute if the match expression doesn t match any other case label. Also please try to prevent to do those single line stuff for readability.

The default statement is used if no match is found. The value of the expression is then compared with the values for each case in the structure. In the beginning no code is executed. If no default label is found the program continues to the statement s after the switch.