Switch is a conditional statement: use it run different blocks of code, depending upon a specified value.
Example:
<?php
$n = 2;
switch (n)
{
case 1:
print 'One';
break;
case 2:
print 'Two';
break;
default:
print 'Neither one nor two';
}
?>
- Begin with the keyword switch
- Use parentheses to enclose a value; this key value will decide which code to run.
- Use a pair of curly braces {} to form a code block. (Code blocks are not followed by semicolons.)
- Inside the code block, use the case keyword, followed by a case value and then a colon, followed by one or more lines of code
- If the case value matches the key value, this code will run.
- Use the break statement (followed by a semicolon) to indicate the end of the case statement.
- If the first case value does not match the key value, PHP checks the next case, and so on.
- Use the default: clause to indicate code which will run if none of the above cases match.
