如何在PHP中创建对象的副本？

要在PHP中创建对象的副本，代码如下-

示例

<?php class Demo { public $val1; public $val2; } $ob = new Demo(); $copyOb = clone $ob; $ob->val1 = "Jack"; $ob->val2 = "Kevin"; $copyOb->val1 = "Tom"; $copyOb->val2 = "Ryan "; echo "$ob->val1$ob->val2\n"; echo "$copyOb->val1$copyOb->val2\n"; ?>

输出结果

这将产生以下输出-

JackKevin TomRyan

示例

现在让我们来看另一个示例-

<?php class Demo { public $deptname; public $deptzone; public function __construct($a, $b) { $this->deptname = $a; $this->deptzone = $b; } } $val = new Demo(Finance, West); $copy = clone $val; print_r($val); print_r($copy); ?>

输出结果

这将产生以下输出-

Demo Object( [deptname] => Finance [deptzone] => West ) Demo Object( [deptname] => Finance [deptzone] => West )