note 78460 deleted from language.oop5.overloading by danbrown
| From: | danbrown@php.net | Date: | Mon, 20 Jun 2011 15:29:46 +0000 |
| Subject: | note 78460 deleted from language.oop5.overloading by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-180773@lists.php.net to get a copy of this message | ||
Note Submitter: egingell at sisna dot com
----
@ zachary dot craig at goebelmediagroup dot com
I do something like that, too. My way might be even more clunky.
<?php
function sum() {
$args = func_get_args();
if (!count($args)) {
echo 'You have to supply something to the function.';
} elseif (count($args) == 1) {
return $args[0];
} elseif (count($args) == 2) {
if (is_numeric($args[0]) && is_numeric($args[1])) {
return $args[0] + $args[1];
} else {
return $args[0] . $args[1];
}
}
}
?>
I like the "__call" method, though. You can "declare" multiple functions that
don't pollute the namespace. Although, it might be better looking to use this instead of a
series of if...elseif... statemenets.
<?php
class myClass {
function __call($fName, $fArgs) {
switch($fName) {
case 'sum':
if (count ($fArgs) === 1) {
return $fArgs[0];
} else {
$retVal = 0;
foreach( $fArgs as $arg ) {
$retVal += $arg;
}
return $retVal;
}
break;
case 'other_method':
...
default:
die ('<div><b>Fetal Error:</b> unknown method ' . $fName .
' in ' . __CLASS__ . '.</div>');
} // end switch
}
}
?>
Side note: if you don't force lower/upper case, you will have case sensitive method names. E.g.
$myclass->sum() !== $myclass->Sum().