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Wrong parameter count for defined() - PHP - 清泛IT论坛，有思想、有深度
1. define defined混淆了
意见反馈考虑改为bbs：[url]https://bbs.tsingfun.com/forum.php?mod=forum...
意见反馈考虑改为bbs：https://bbs.tsingfun.com/forum.p ... ypeid&typeid=63已修改。
App Inventor 2 如何跟踪查看Web客户端的请求标头？ - App Inventor 2 中文...
...看呢？可以采用一种迂回的方式，将请求临时发到指定的php网页，php代码简单输出请求标头信息，Web客户端输出响应信息就可以查看了：
php代码如下：
<?php
$headers = getallheaders();
foreach ($headers as $name => $value){
&nbs...
Automatic Retina images for web sites
...
There is a new attribute for the img tag that allows you to add a retina src attribute, namely srcset. No javascript or CSS needed, no double loading of images.
<img src="low-res.jpg" srcset="high-res.jpg 2x">
Browser Support: http://caniuse.com/#search=srcset
O...
How to show google.com in an iframe?
...ilar to Google style. Google CSE works with web and images search.
google.php
<script>
(function() {
var cx = 'xxxxxxxxxxxxxxxxxxxxxx';
var gcse = document.createElement('script');
gcse.type = 'text/javascript';
gcse.async = true;
gcse.src = 'https://cse.google.com/cse....
How to delete a word and go into insert mode in Vim?
...aw deletes the trailing space as well.
– Roberto Bonvallet
Sep 7 '09 at 4:38
5
:help objects in v...
What does WISC (stack) mean? [closed]
...software/technology bundle/stack representing Linux , Apache , MySQL , PHP . There are a few passing references on the Web that use the acronym WISC to speak of the other (supposedly Microsoft-centric) software/technology bundle/stack in contrast to LAMP. There is, however, no Wikipedia entr...
MySql Table Insert if not exist otherwise update
...since it's the unique key, so it should not change. You do need to include all of the other columns from your table. You can use the VALUES() function to make sure the proper values are used when updating the other columns.
Here is your update re-written using the proper INSERT ... ON DUPLICATE KEY...