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解决 Error 503: The specified address is not a valid Bluetooth MAC add...
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本例中就是经典蓝牙，但是用的 ble 的方式显示导致的问题。
One-liner to recursively list directories in Ruby?
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In PHP or other languages to get the content of a directory and all its subdirectories, you have to write some lines of code, but in Ruby it takes 2 lines:
require 'find'
Find.find('./') do |f| p f end
this will print the con...
how to show alternate image if source image is not found? (onerror working in IE but not in mozilla)
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If you're open to a PHP solution:
<td><img src='<?PHP
$path1 = "path/to/your/image.jpg";
$path2 = "alternate/path/to/another/image.jpg";
echo file_exists($path1) ? $path1 : $path2;
?>' alt='' />
</td>
////EDI...
只有程序员能看懂的笑话 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...件工程师参加培训管理人员的课程。老师提出了这样一个问题：“假如你供职的公司是为航空电子设备提供软件的。有一天你乘飞机出差，当你上了飞机后你发现一个牌子上写着这个飞机用的是你的团队开发的Beta版软件，你会...
Heroku push rejected, no Cedar-supported app detected
... missing some key file that it uses to identify your app (and its type).
php: index.php
python: requirements.txt
ruby: Gemfile # note the capitalization
node: package.json
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PHPMailer character encoding issues
I try to use PHPMailer to send registration, activation. etc mail to users:
11 Answers
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How can I get query string values in JavaScript?
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How does this function handle http://www.mysite.com/index.php?x=x1&x=x2&x=x3 The value of field x is ambiguous.
– dpp
Jul 9 '11 at 6:34
96
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Python + Django page redirect
...direct (e.g. cflocation in ColdFusion, or header(location:http://) for PHP) in Django?
10 Answers
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How do I fix “Failed to sync vcpu reg” error?
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this is really a problem for me.. Im running a php app which provides api in virtual box on my macbook and I can't develop android app which needs to connect to that api... I guess I will need to deploy the php app on some server and develop on that, oh well
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Difference between id and name attributes in HTML
...ipt/jQuery (has to be unique in a page)
name is used for form handling in PHP when a form is submitted via HTML (has to be unique in a form - to some extent, see Paul's comment below)
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