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Get first n characters of a string
How can I get the first n characters of a string in PHP? What's the fastest way to trim a string to a specific number of characters, and append '...' if needed?
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How to get past the login page with Wget?
...=foo&password=bar' \
--delete-after \
http://server.com/auth.php
# Now grab the page or pages we care about.
wget --load-cookies cookies.txt \
http://server.com/interesting/article.php
Make sure the --post-data parameter is properly percent-encoded (especially ampersands!) or t...
Visually managing MongoDB documents and collections [closed]
...andoned projects
RockMongo – a MongoDB administration tool, written in PHP5. Allegedly the best in the PHP world. Similar to PHPMyAdmin. Last version: 2015-Sept-19
Fang of Mongo – a web-based UI built with Django and jQuery. Last commit: 2012-Jan-26, in a forked project.
Opricot – a browser-...
Laravel Check If Related Model Exists
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In php 7.2+ you can't use count on the relation object, so there's no one-fits-all method for all relations. Use query method instead as @tremby provided below:
$model->relation()->exists()
generic solution working on...
linux下iptables配置详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...成DROP的话)
允许loopback!(不然会导致DNS无法正常关闭等问题)
IPTABLES -A INPUT -i lo -p all -j ACCEPT (如果是INPUT DROP)
IPTABLES -A OUTPUT -o lo -p all -j ACCEPT(如果是OUTPUT DROP)
下面写OUTPUT链,OUTPUT链默认规则是ACCEPT,所以我们就写需要DROP(放弃)...
Linux下安装项目管理工具Redmine - 开源 & Github - 清泛网 - 专注C/C++及内核技术
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2、RubyGems安装
# wget http://rubyforge.org/frs/download.php/60718/rubygems-1.3.5.tgz
# tar zxvf rubygems-1.3.5.tgz
# cd rubygems-1.3.5
# ruby setup.rb
3、Rake安装
# gem install rake //直接使用gem命令安装rake.
//也可以下载安装地址...
How can I make a button redirect my page to another page? [duplicate]
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try
<button onclick="window.location.href='b.php'">Click me</button>
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MySQL ON DUPLICATE KEY - last insert id?
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It is said that php function mysql_insert_id() returns correct value in both cases: php.net/manual/en/function.mysql-insert-id.php#59718.
– jayarjo
Jun 10 '10 at 13:09
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How can I get PHPUnit MockObjects to return different values based on a parameter?
I've got a PHPUnit mock object that returns 'return value' no matter what its arguments:
11 Answers
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How to convert a string to lower case in Bash?
...uby`
Or Perl (probably my favorite):
b=`perl -e "print lc('$a');"`
Or PHP:
b=`php -r "print strtolower('$a');"`
Or Awk:
b=`echo "$a" | awk '{ print tolower($1) }'`
Or Sed:
b=`echo "$a" | sed 's/./\L&/g'`
Or Bash 4:
b=${a,,}
Or NodeJS if you have it (and are a bit nuts...):
b=`e...