How does PHP handle the syntax 'case a || b || c || d' in switch statements compared to 'case a: case b: case c: case d:'?

When using the syntax 'case a || b || c || d' in switch statements in PHP, it is not valid and will result in a syntax error. To handle multiple cases in a switch statement, you should use separate 'case' statements for each value like 'case a:', 'case b:', 'case c:', 'case d:'. This ensures that each case is evaluated individually. 

$variable = 'b';

switch ($variable) {
    case 'a':
    case 'b':
    case 'c':
    case 'd':
        echo "Variable is either a, b, c, or d";
        break;
    default:
        echo "Variable is not a, b, c, or d";
}

Keywords

PHP switch statement case logical OR syntax

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