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在线服务的黑天鹅 - 资讯 - 清泛网 - 专注C/C++及内核技术

...利用周日休息一下,但是一醒来就收到消息说某服务有些问题。于是赶紧连线了一堆正在处理事件的工程师,等拿到初步的原因分析之后,已经4小时之后了。 “墨菲定律”,一位工程师说,“前几天觉得这个地方有些隐患,已...
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PHP check whether property exists in object or class

I understand PHP does not have a pure object variable, but I want to check whether a property is in the given object or class. ...
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How to force the browser to reload cached CSS/JS files?

...it, there's no pain in figuring out which version you need to return to in order for your visitors not to re-download. share | improve this answer | follow | ...
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How to get a variable name as a string in PHP?

Say i have this PHP code: 24 Answers 24 ...
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How do I log errors and warnings into a file?

...ile, but to set up all of that within the script (not changing anything in php.ini)? 7 Answers ...
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Passing base64 encoded strings in URL

...ommend just writing your own helpers. Like these from the comments on the php manual page for base64_encode: function base64_url_encode($input) { return strtr(base64_encode($input), '+/=', '._-'); } function base64_url_decode($input) { return base64_decode(strtr($input, '._-', '+/=')); } ...
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Enabling error display in PHP via htaccess only

...n to the log file and then add the code <Files php_errors.log> Order allow,deny Deny from all Satisfy All </Files> at the end of .htaccess. This will protect your log file. These options are suited for a development server. For a production server you should not displa...
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How to resolve “must be an instance of string, string given” prior to PHP 7?

... Prior to PHP 7 type hinting can only be used to force the types of objects and arrays. Scalar types are not type-hintable. In this case an object of the class string is expected, but you're giving it a (scalar) string. The error messa...
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Getting the first character of a string with $str[0]

... Does PHP $str[0] take into account that there can be 2Byte long chars? UTF and such? (even though substr() does not help with it either!) – Tomer W Jun 26 '13 at 13:29 ...
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What's the difference between :: (double colon) and -> (arrow) in PHP?

There are two distinct ways to access methods in PHP, but what's the difference? 6 Answers ...