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Switch Statement

Explore how to implement the switch statement in PHP to execute different code blocks based on variable values. Understand case matching, the role of the break statement, and the optional default case to effectively control program flow.

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Switch Case Construct

Typically this is required when based on different values of a particular expression, different actions need to be performed. The basic construct of a switch case looks as follows:

C++
switch (expression)
{
  case constant-expression: 
     statement; //statement(s) execute if constant-expression is true
     break; //exit the switch block 
  default: //the code inside default is run when no other cases match
     statement;
     break;
}

  • In the code block above the expression can have multiple values. Essentially:

    • string
    • integer
...