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PHP微信公众开发笔记(九)

Jun 21, 2016 am 08:47 AM
array merge

PHP微信公众开发笔记系列
日期:2014.9.9

中秋假期除了周六那天整了整,就没怎么动过了。今天上班主要是把既定的两个开发目标完成了:“八卦”、“回忆”两个模块,这两个东西也很简单,也主要是涉及到数据库的操作而已。然后以图文形式回复就可以了。所以数据库中主要是保存了:文章标题、文章跳转连接、图片链接这三个字段信息。

2014.9.11整理笔记:
写这个笔记的时候,在赶功能,所以也就是简单的记几笔当时的工作内容,现在功能开发得差不多了,就来整理之前的笔记。当时就很简单的记录了上文的那几句。

这个礼拜是很闲了,应该说上个礼拜开始我就很闲了,不然也不会有时间来折腾这个公众平台的开发了,所以抓紧时间在回家之前把要做的功能都做完吧,以后有时间就是整理了。

做这两个模块,很简单,就是在云数据库中新建两个数据表就可以了。然后就是使用随机数来回复就可以了。说到随机数,在这里我使用到了带种子的随机数,这样能保证随机数更随机:



以调用时的时间为随机数种子,这样能最大程度上保证随机数的随机性。

一、八卦

回复八卦信息的时候,我首先从数据库中得到所有的八卦信息的数据行,保存在一个二维数组中,然后调用上面的随机数得到一个随机的数组下标,再得到这一行的数据信息。这样就实现了随机回复了:



同学说希望有顺序回复的机制,即每次可以按照在数据库中的顺序来回复,我在这个基础上做了改进,即随机选择是顺序回复还是随机回复。顺序回复我是这样实现的:



顺序都没检测过效果,不知道有没有用。
得到了数据信息之后,便是以图文形式回复了,这个在之前提过,在这里就不再提了。

二、回忆
这个也是在云端的数据中搭建一个数据表来实现的。不过我想,回忆的话,也可以回忆回忆八卦的信息。所以我就将两张数据表合并起来使用了。使用思路是:从数据库中得到八卦、回忆两个数据表的二维数组,然后将这两个二维数组合并起来使用,剩下的便是和八卦那块差不多了。
这里谈谈php中数组的合并。看手册上是说有两种方式来合并:array_merge(),array_combine().网上也有这两个函数的区别介绍:
array_combine 只能用于两个数组的合并,其中一个数组的值作为新数组的键?第二个数组的值作为新数组的值?
array_merge 可以用于多个数组的合并,如果有两个键名相同,该键的键值为最后一个键名对应的值(后面的值覆盖前面的值)。如果数组是数字索引的,则键名会以连续的方式重新索引。
所以看了这两个介绍之后,我觉得应该是需要以array_merge的方式合并两个数组,然后该干嘛干嘛去。



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