大约有 40,000 项符合查询结果(耗时:0.0382秒) [XML]

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On delete cascade with doctrine2

...ple in order to learn how to delete a row from a parent table and automatically delete the matching rows in the child table using Doctrine2. ...
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How to display HTML tags as plain text [duplicate]

I have an input form on my website where HTML is allowed and I'm trying to add instructions about the use of HTML tags. I'd like the text to ...
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Is there a PHP function that can escape regex patterns before they are applied?

...our regex, commonly a forward slash (/) - will not be escaped. You will usually want to pass whatever delimiter you are using with your regex as the $delimiter argument. Example - using preg_match to find occurrences of a given URL surrounded by whitespace: $url = 'http://stackoverflow.com/questio...
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How does this giant regex work?

I recently 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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从一个开发的角度看负载均衡和LVS - 更多技术 - 清泛网 - 专注C/C++及内核技术

...允许的情况下我们会采用软负载,软负载解决的两个核心问题是:选谁、转发,其中最著名的是LVS(Linux Virtual Server)。 三、软负载——LVS LVS是四层负载均衡,也就是说建立在OSI模型的第四层——传输层之上,传输层上有...
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为什么我们程序员写不出好代码? - 杂谈 - 清泛网 - 专注C/C++及内核技术

...提交的仓库里。如果代码行数都计算在内的话,原本一个问题只需10行代码即可解决,程序员有可能编写5000行代码,来让功能更加灵活和兼容,这样,他的代码总量就会增加5000行了。 衡量生产力反而会使代码变的更糟,让项目...
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Path of assets in CSS files in Symfony 2

...ge in /web/bundles/mynicebundle/images/devil.png I have made a test with ALL possible (sane) combinations of the following: @notation, relative notation Parse with cssrewrite, without it CSS image background vs direct <img> tag src= to the very same image than CSS CSS parsed with assetic a...
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How to make MySQL handle UTF-8 properly

... My understanding is that utf8 within MySQL only refers to a small subset of full Unicode. You should use utf8mb4 instead to force full support. See mathiasbynens.be/notes/mysql-utf8mb4 "For a long time, I was using MySQL’s utf8 charset for databases, tables, and columns, assuming i...
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How to set a cookie for another domain

...get b.com to set the cookie. If a.com redirect the user to b.com/setcookie.php?c=value The setcookie script could contain the following to set the cookie and redirect to the correct page on b.com <?php setcookie('a', $_GET['c']); header("Location: b.com/landingpage.php"); ?> ...
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See changes to a specific file using git

...s, but, as far as I understood, it is directory based. This means it gives all the changes of all files on the current directory. ...