Created
August 18, 2018 13:02
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Approach 1 | |
<?php | |
class A | |
{ | |
function __construct() | |
{ | |
$a = func_get_args(); | |
$i = func_num_args(); | |
if (method_exists($this, $f = '__construct' . $i)) { | |
call_user_func_array(array($this, $f), $a); | |
} | |
} | |
function __construct1($a1) | |
{ | |
echo('__construct with 1 param called: ' . $a1); | |
} | |
function __construct2($a1, $a2) | |
{ | |
echo('__construct with 2 params called: ' . $a1 . ',' . $a2); | |
} | |
function __construct3($a1, $a2, $a3) | |
{ | |
echo('__construct with 3 params called: ' . $a1 . ',' . $a2 . ',' . $a3); | |
} | |
} | |
$o = new A('sheep'); echo "<br />"; | |
$o = new A('sheep','cat'); echo "<br />"; | |
$o = new A('sheep','cat','dog'); | |
// results: | |
// __construct with 1 param called: sheep | |
// __construct with 2 params called: sheep,cat | |
// __construct with 3 params called: sheep,cat,dog | |
?> |
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https://stackoverflow.com/questions/2169448/why-cant-i-overload-constructors-in-php/51908855#51908855