cast-bools.php

    /**
        * Casting bools to string
    */

    $t = true;
    $f = false;
    
    // By default false returns nothing we need to type cast it to int to how 0
    $f = (int) $f;

    // True as string gives
    $true_string = (string) $t;

    // False as string gives nothing
    $false_string = (string) $f;