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String concatenation vs. string substitution in Python
...my scripts, and I was wondering what the cost was. I ran them in different orders to make sure nothing was interfering, or getting better performance being first or last. On a side note, I threw in some longer string generators into those functions like "%s" + ("a" * 1024) and regular concat was alm...
Getting the location from an IP address [duplicate]
...ccording to their location. Is there a good and reliable way to do this in PHP? I am using JavaScript for client-side scripting, PHP for server-side scripting, and MySQL for the database.
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How to use CURL via a proxy?
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PHP validation/regex for URL
...references to some flags have been removed entirely. More info here: news.php.net/php.internals/99018
– S. Imp
May 12 '17 at 21:53
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How to break/exit from a each() function in JQuery? [duplicate]
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How does this giant regex work?
...ently found the code below in one of my directories, in a file called doc.php . The file functions or links to a file manager. It's quite nicely done. Basically, it lists all the files in the current directory, and it lets you change directories.
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Explode string by one or more spaces or tabs
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In order to account for full width space such as
full width
you can extend Bens answer to this:
$searchValues = preg_split("@[\s+ ]@u", $searchString);
Sources:
strip out multi-byte white space from a string PHP
What...
各编程语言读写文件汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...件尾后，即文件原先的内容会被保留。
导航：
一、PHP
二、C#
三、C
3.1、fgets、fputs文本读写
3.2、fread、fwrite二进制读写
四、C++
五、Java
PHP读写文件：
// 写文件
$fp = fopen("log.txt", "a");
fwrite($fp, $str);
fclose(...
Make .gitignore ignore everything except a few files
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To ignore some files in a directory, you have to do this in the correct order:
For example, ignore everything in folder "application" except index.php and folder "config" pay attention to the order.
You must negate want you want first.
FAILS
application/*
!application/config/*
!application...
MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...泄露告警或控制石油管道阀门的命令，就必须要在网络有问题的情况下也要能确保发送成功。
myriota这家提供物联网数据LEO卫星传输服务的公司，流量报价是1M字节的数据500美元/月。因此，每次传输节省几个字节也能省不少...