, "PEACH");
echo $eFruits->APPLE . ",";
echo $eFruits->ORANGE . ",";
echo $eFruits->PEACH . "n";
$eBeers = new DefinedEnum("GUINESS" => 25, "MIRROR_POND" => 49);
echo $eBeers->GUINESS . ",";
echo $eBeers->MIRROR_POND . "n";
$eFlags = new FlagsEnum("HAS_ADMIN", "HAS_SUPER", "HAS_POWER", "HAS_GUEST");
echo $eFlags->HAS_ADMIN . ",";
echo $eFlags->HAS_SUPER . ",";
echo $eFlags->HAS_POWER . ",";
echo $eFlags->HAS_GUEST . "n";
?>
Will output:
1, 2, 3
25, 49
1,2,4,8 (or 1, 10, 100, 1000 in binary)
Why should anyone learn what classes and objects are? The short answer is to clarify and simplify code. Take this regular script:
<?php
$item_name = 'Widget 22';
$item_price = 4.90;
$item_qty = 2;
$item_total = ($item_price * $item_qty);
echo "You ordered $item_qty $item_name @ $$item_price for a total of: $$item_total.";
?>
You ordered 2 Widget 22 @ $4.9 for a total of: $9.8.
You can see clearly that you have to "define and set" the data, "perform a calculation", and explicitly "write" the results - for a total of 5 written statements. But the more you look at it, the more it needs fixin'. If you attempt to do that, your code can get really ugly, really fast - and remember, this is just a simple script! Here's the same program in OOP with all the fixin's:
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