Can static variables in PHP functions retain their values between function calls? If so, how?

Yes, static variables in PHP functions can retain their values between function calls. This can be achieved by declaring a variable as static within a function. When a function is called, the static variable retains its value from the previous function call and can be modified and accessed within the function. 

function increment() {
    static $count = 0;
    $count++;
    echo $count . "\n";
}

increment(); // Output: 1
increment(); // Output: 2
increment(); // Output: 3

Keywords

PHP static variables function calls retain values scope

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