PHP Switch Statement
Conditional statements are used to perform different actions based on different conditions.
The PHP Switch Statement
Use the switch statement to select one of many blocks of code to be executed.
Syntax
| switch (n) { case label1: code to be executed if n=label1; break; case label2: code to be executed if n=label2; break; default: code to be executed if n is different from both label1 and label2; } |
This is how it works: First we have a single expression n (most often a variable), that is evaluated once. The value of the expression is then compared with the values for each case in the structure. If there is a match, the block of code associated with that case is executed. Use break to prevent the code from running into the next case automatically. The default statement is used if no match is found.
Example
| <html> <body> <?php switch ($x) { case 1: echo "Number 1"; break; case 2: echo "Number 2"; break; case 3: echo "Number 3"; break; default: echo "No number between 1 and 3"; } ?> </body> </html> |
[출처] http://www.w3schools.com
'프로그램&DB > PHP' 카테고리의 다른 글
| PHP Looping - While Loops 루프 반복문 (0) | 2011.08.27 |
|---|---|
| PHP Arrays 일반배열, 다중배열, 배열객체 예문 포함 (0) | 2011.08.27 |
| PHP If...Else Statements 제어문 (0) | 2011.08.27 |
| PHP Operators 연산자 (0) | 2011.08.27 |
| PHP String Variables 문자열 변수 (0) | 2011.08.27 |