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Which $_SERVER variables are safe?
...lett.org/blog/2006/mar/server-name-versus-http-host.
‡ See https://bugs.php.net/bug.php?id=64457, http://httpd.apache.org/docs/current/mod/core.html#usecanonicalphysicalport, http://httpd.apache.org/docs/2.4/mod/core.html#comment_999
Entirely arbitrary user controlled values
These values are no...
App Inventor 2 百度网盘拓展：授权、文件列表、下载、上传 · App Inventor 2 中文网
...容不同才重命名、3 覆盖。
常见问题
Q：列文件、下载一直报「身份验证失败，请重新授权」？
A：access_token 过期（约 30 天）或者填错了，按示例 1 重新授权即可。
Q：上传报「文件或目录名错误，或无权访...
Programmatically obtain the Android API level of a device?
...Build.VERSION.SDK_INT). For example you can run some piece of code which requires newer API in the following way (it will execute if the current device's API level is at least 4)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.DONUT) {
}
To obtain user visible Android Version use:
Build.VER...
Passing base64 encoded strings in URL
...ommend just writing your own helpers. Like these from the comments on the php manual page for base64_encode:
function base64_url_encode($input) {
return strtr(base64_encode($input), '+/=', '._-');
}
function base64_url_decode($input) {
return base64_decode(strtr($input, '._-', '+/='));
}
...
How to exclude file only from root folder in Git
...ignore file to exclude some files being added, but I have several config.php files in source tree and I need to exclude only one, located in the root while other keep under revision control.
...
What is std::move(), and when should it be used?
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Move-semantics require the moved object remain valid, which is not an incorrect state. (Rationale: It still has to destruct, make it work.)
– GManNickG
Aug 5 '10 at 16:37
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The character encoding of the HTML document was not declared
...ur HTML tags and doctype go away. You need to include those in your insert.php file:
<!DOCTYPE html PUBLIC"-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" ...
What's quicker and better to determine if an array key exists in PHP?
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@FrancescoPasa Well, "search for the keys" is what PHP documentation says. Other than that, I can't tell if "search" to them means something completely different to what it means to me.
– Rain
Apr 22 at 6:09
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select count(*) from table of mysql in php
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@eichertc the php interpreter has the variable always internal, as he needs to have the result in memory one way or the other. So your way just makes the code worser to read and maintain, IMHO.
– Tom
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How can I compare two dates in PHP?
How can I compare two dates in PHP?
13 Answers
13
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