PHP Basic Tutorial
The switch statement in PHP is a control structure used to execute different blocks of code based on the value of a variable or expression. It is similar to a series of if...elseif...else statements but is often used when you want to compare the same variable or expression against multiple possible values.
Syntax of the switch Statement
switch (expression) {
case value1:
// Code to be executed if expression equals value1
break;
case value2:
// Code to be executed if expression equals value2
break;
case value3:
// Code to be executed if expression equals value3
break;
default:
// Code to be executed if none of the cases match
}
switch (expression): This is the value or expression to be compared.case value:: If the value of expression matches value, the associated block of code is executed.break;: This exits the switch block after a matching case is found and its code has been executed, preventing subsequent case blocks from running.default:: This block executes if none of the case values match the expression.Try it yourself
break; is used to exit a loop or switch block immediately.switch statements to prevent further execution once a condition is met.Warning
Without break;, PHP will continue to execute the next case statements (known as "fall-through" behavior).
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The default keyword in PHP is used in a switch statement to specify the block of code that should be executed if none of the case values match the evaluated expression.
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default Placed ElsewhereAlthough not common practice, the default block can be placed anywhere within a switch structure. PHP will execute the default block if no matching case values are found, regardless of its position.
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