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Best way to check if a URL is valid
...at FILTER_VALIDATE_URL will not validate the protocol of a url. So ssh://, ftp:// etc will pass.
– Seph
May 10 '14 at 14:03
3
...
一个自媒体的运营手记：我做公众号已经两年多了 - 资讯 - 清泛网 - 专注C/C...
...在做图片的时候，在图片上写明了操作步骤，点击放大，长按识别，然后选择“识别图中的二维码”关注，这个方法，一方面可以减少我的工作量，一方面也方面用户，经过试验之后，发了5000个好友，80%用户都关注了，这个就...
Why do we use Base64?
... They data may even be destroyed in transit. For example many FTP programs rewrite line endings from 13,10 to 10 or via versa if the operating system of the server and client don't match and the transfer is flagged as text mode. FTP is just the first example that came to my mind, it is ...
Alarm 闹钟扩展 · App Inventor 2 中文网
...新小米手机上启用”显示弹出窗口”。另一种访问方式：长按应用程序图标，然后选择”应用信息”。
参考
属性 Properties
可绘制覆盖层 CanDrawOverlays
返回是否已授予 SYSTEM_ALERT_WINDOW 权限...
“CASE” statement within “WHERE” clause in SQL Server 2008
...tered LIKE '%TestPerson' THEN 1 ELSE 0 END
END = 1
AND cc.ccnum = CASE LEN('TestFFNum')
WHEN 0 THEN cc.ccnum
ELSE 'TestFFNum'
END
AND CASE LEN('2011-01-09 11:56:29.327')
WHE...
Remove by _id in MongoDB console
...close. This will work:
db.test_users.deleteOne( {"_id": ObjectId("4d512b45cc9374271b02ec4f")});
i.e. you don't need a new for the ObjectId.
Also, note that in some drivers/tools, remove() is now deprecated and deleteOne or deleteMany should be used instead.
...
How to parse JSON in Python?
...e example that may help you:
json_string = """
{
"pk": 1,
"fa": "cc.ee",
"fb": {
"fc": "",
"fd_id": "12345"
}
}"""
import json
data = json.loads(json_string)
if data["fa"] == "cc.ee":
data["fb"]["new_key"] = "cc.ee was present!"
print json.dumps(data)
The ...
configure: error: C compiler cannot create executables
...
You have an old set of developer tools. gcc is reporting its version as 4.0.1. This may be left over from migrating from an older version of the OS. If you've installed Xcode 4.3.x, you need to launch it, go into its preferences, select the Downloads tab, and click ...
Linux c++ error: undefined reference to 'dlopen'
...
@Masci is correct, but in case you're using C (and the gcc compiler) take in account that this doesn't work:
gcc -ldl dlopentest.c
But this does:
gcc dlopentest.c -ldl
Took me a bit to figure out...
...
Exploitable PHP functions
...- 2nd parameter is a path.
imagegd2 - 2nd parameter is a path.
iptcembed
ftp_get
ftp_nb_get
// read from filesystem
file_exists
file_get_contents
file
fileatime
filectime
filegroup
fileinode
filemtime
fileowner
fileperms
filesize
filetype
glob
is_dir
is_executable
is_file
is_link
is_readable
is_up...