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MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...ard、sysadmin api、插件扩展、对topic或session或clientid的tracing调试等高级功能，大大简化服务器端的开发工作量。实际应用中，只需要写发布和订阅接口函数即可，中间过程对应用开发人员透明。12. 可以通过MQTT over websocket来穿越防...
PHP prepend leading zero before single digit number, on-the-fly [duplicate]
PHP - Is there a quick, on-the-fly method to test for a single character string, then prepend a leading zero?
3 Answers
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Make var_dump look pretty
...something like this for color syntax highlighting:
highlight_string("<?php\n\$data =\n" . var_export($data, true) . ";\n?>");
You can do the same with print_r(). For var_dump() you would just need to add the <pre> tags:
echo '<pre>';
var_dump($data);
echo '</pre>';
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Test PHP headers with PHPUnit
I'm trying to use PHPunit to test a class that outputs some custom headers.
7 Answers
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PHP Difference between array() and []
I'm writing a PHP app and I want to make sure it will work with no errors.
5 Answers
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Unable to find the wrapper “https” - did you forget to enable it when you configured PHP?
...being said I'll list out exactly everything I've done so far. I am running PHP 5.2.14 with Zend Debugging on the latest Eclipse version on my Windows XP computer. I have a 1 GB of RAM. I have XAMPP running with Apache, MySQL, and FileZilla installed.
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How to copy a file from one directory to another using PHP?
Say I've got a file test.php in foo directory as well as bar . How can I replace bar/test.php with foo/test.php using PHP ? I'm on Windows XP, a cross platform solution would be great but windows preferred.
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Reference assignment operator in PHP, =&
What does the =& (equals-ampersand) assignment operator do in PHP?
4 Answers
4
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What does a \ (backslash) do in PHP (5.3+)?
What does a \ do in PHP?
4 Answers
4
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How do I turn off PHP Notices?
I've already commented out display_errors in php.ini , but is not working.
16 Answers
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