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The PHP switch Statement. Use the switch statement to select one of many blocks of code to be executed. Syntax. switch (expression) { case label1: //code block break; case label2: //code block; break; case label3: //code block break; default: //code block } This is how it works: The expression is evaluated once.
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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.: $current_home = null; $current_users = null; $current_forum = null;
Example #1 switch structure. <?php. // This switch statement: switch ($i) { case 0: echo "i equals 0"; break; case 1: echo "i equals 1"; break; case 2: echo "i equals 2"; break; } // Is equivalent to: if ($i == 0) { echo "i equals 0"; } elseif ($i == 1) { echo "i equals 1"; } elseif ($i == 2) { echo "i equals 2"; } ?>
PHP switch statement. A switch statement is used when you have multiple possibilities for the if statement. Figure - Flowchart of switch Statement: Example of a PHP Program to Demonstrate Switch Statement. Example: Copy Code.
The switch statement in PHP can be treated as an alternative to a series of if…else statements on the same expression. Suppose you need to compare an expression or a variable with many different values and execute a different piece of code depending on which value it equals to.
19 sie 2022 · Syntax: switch (expression ) { case constant1: execute the statement; break; case constant2: execute the statement; break; case constant3: execute the statement; break; ......... default: execute the statement; }
To write a PHP switch statement, you start with the switch keyword followed by the expression to evaluate (for example, a variable name). You then follow that with a case for each condition (based on the expression).
