大约有 43,000 项符合查询结果(耗时:0.0296秒) [XML]

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Check whether an array is empty [duplicate]

... You don't need to count the elements or use empty(). A one-liner like php -r 'echo array() ? "T":"F";' will show the truthiness for an empty or non-empty array. – jerseyboy May 16 '14 at 13:08 ...
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PHP code to convert a MySQL query to CSV [closed]

What is the most efficient way to convert a MySQL query to CSV in PHP please? 6 Answers ...
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String comparison using '==' vs. 'strcmp()'

It seems that PHP's === operator is case sensitive. So is there a reason to use strcmp() ? 13 Answers ...
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Is there any particular difference between intval and casting to int - `(int) X`?

... (int) is faster than intval(), according to wiki.phpbb.com/Best_Practices:PHP – Martin Thoma Sep 1 '11 at 11:33 ...
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PHP function to get the subdomain of a URL

Is there a function in PHP to get the name of the subdomain? 28 Answers 28 ...
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马无夜草不肥——聊聊程序员接私活的那些坑 - 杂谈 - 清泛网 - 专注C/C++及内核技术

...,经常遇到是否能1000块开发出一个像淘宝那样的网站的问题,自身价值分分钟被贬低,差点被气得一口老血喷涌而出。 靠同学、朋友、同事介绍的渠道通常性价比要高,但有可以抱的大腿少哇。 二. 谈钱伤感情,不谈钱伤身...
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Memcached下一站:HandlerSocket! - 更多技术 - 清泛网 - 专注C/C++及内核技术

...形中让Memcached成为故障的根源: Memcached数据一致性的问题:当MySQL数据变化后,如果不能及时有效的清理掉过期的数据,就会造成数据不一致。这在强调即时性的Web2.0时代,不可取。 Memcached崩溃后的雪崩效应:作为缓存的Memc...
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淘宝应对双\"11\"的技术架构分析 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...直到有一天,我们碰到了传统的关系型数据库无法解决的问题——全属性选择器(如图5所示)。 图5 全属性选择器 这是一个非常典型的例子。为了说明问题,我们仍然以关系型数据库的思路来描述。对于笔记本电脑这个类...
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海量数据相似度计算之simhash短文本查找 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...升级、增加机器,但有些时候光是增加机器已经解决不了问题了,就算增加机器也不是短时间能够解决的,需要考虑分布式、客户预算、问题解决的容忍时间?头大时候要相信人类的智慧是无穷的,泡杯茶,听下轻音乐:)畅想...
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A non well formed numeric value encountered

I have a form that passes two dates (start and finish) to a PHP script that will add those to a DB. I am having problems validating this. I keep getting the following errors ...