你能解释下一个有趣的行为吗?
class test {
//Class *test* has two properties, public and private.
public $xpublic = 'x1';
private $xprivate = 'x2';
}
$testObj = new test();
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让我们转换$testObj为数组.
settype($testObj, 'array');
var_dump($testObj);
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结果:
array(2) {
["xpublic"]=> string(3) "x1"
["testxprivate"]=> string(4) "x2"
}
好的,xprivate财产变成了testxprivate
让我们将这个数组转换为object.
$newObj = (object)$testObj;
var_dump($newObj);
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结果:
object(stdClass)#1 (2) {
["xpublic"]=> string(3) "xxx"
["xprivate":"test":private]=> string(4) "xxx3"
}
$newObj是一个stdClass对象.
问题是:
为什么testxprivate成为新对象的私有财产xprivate(而不是testxprivate)?PHP如何知道该$testObj数组是一个对象?
如果我定义相等的数组:
$testArray = array('xpublic'=>'x1', 'testxprivate'=>'x2'); …Run Code Online (Sandbox Code Playgroud)