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HomeBackend DevelopmentPHP Tutorial不是new出来的对象也能用->取值吗

一般来说php面向象的取值用->符号,即先new了一个对象,再用这个箭头工具获取类中的方法和属性。但发现下图中竟然没有new也能用这个箭头取值,这如何理解呢?难道php还有潜规则吗,即没有明说的规则吗


回复讨论(解决方案)

$mysql->query() 返回的是一个 对象,已经实例化。

$mysql->query() 返回的是一个 对象,已经实例化。



看来真如我所料,php中确实有不为人知的秘密,这也是为啥初学者看不懂的原因。其实这里告诉 游戏规则就行了,但是不告诉,不知为啥,可能有人会说,这个不是明摆着吗,试想学习一个技术最难的是第一次接触时,因为你不知道它的规则,你接触后出现了一些问题,然后就知道了,这是另一回事。
看来php还有很多不想告诉初学者的秘密,真让人发指!

初学习php的人们一定要有一个思想意识:php有很多不可告人的秘密,而这些就是那些所谓老手炫耀的所谓技术,这听起来真让人恶心。估计这种人的心态可能因为当初也是初php虐待过,所以留有后遗病,至今到此耿耿于怀,所以看到别的初学php的人也产生了嫉妒心态,心想当初我学的时候都那么难,到你这也要更难,这是一种多么小人的心态哈,并且这种人动不动嘴里就来一句口头语,查手册,我真想操你妈!

正告那些所谓的老手,你妈逼,查手册不用你提,需要你教如何查,难道就你知道查手册不成,你妈逼,你遇到问题后难道一查手册就解决了吗?我真想操你妈!

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