PHP value of nothing?

If have a piece of code that gets some data from a sql database $comms = $row[\'comments\'] ; if ($comms != \"\") {

为了票房明星们都是怎么样使出的必杀技？？

孟蓓 开发者_开发技巧 2022-05-04 16:43 付出越多，得到了越多，就像投资一样，你脑子里面转得越快，那么你的劳动成果就越有效力。小阿常的妹妹

django + ajax: Need small introduction for "dummies "

I was trying to understand how ajax works with django several times, but looks like no tutorials on the web can help me. I\'d rather try to build a small sample. So trying to solve the following.

need help to solve solrj.SolrServerException

I am new to Solr, I am using Solr -1.5( nightly bulid) to index my data which is in xml format... Here is my sample data,

PHP tree implementation: Defining parent reference on recursion loop

Back to my JaxpTree object. The tree is supposed to convert a MySQL related-table pair into a nested tree that follows such relationship:

夏天快餐店做什么好饮品？

iphone global settings - best way to implement it?

I\'d like to have some settings th开发者_如何转开发at I can access from anywhere in my app. Is there a best way to implement this? Right now I\'m just sticking properties in my app delegate, then acce

陈妍希产后首晒自拍 自曝十天没洗头？？

新晋辣妈陈妍希发微博并配文：以前每天都要洗头的我，这次是我这辈子撑最久一次没洗头，过了十天油腻腻的日子之后，此刻的心情是幸福!ps:小星星的妈咪虽然没洗头，但还是美美的~

郭富城被曝光了一家四口外出游玩的照片看上去其乐融融？

我们谈及港星，总免不了要提及四大天王。 毕竟，他们在娱乐圈的地位是举足轻重的，不只是作品无数，也承载着一代人的美好回忆，并且在现在也没有新的天王可以取代他们的名号。

How to clear all cached items in Oracle

I\'m tuning SQL queries on an Oracle database. I want to ensure that all cached items are cleared before running each query in order to prevent misleading performance resul开发者_开发知识库ts. I clear