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How can I get the last 7 characters of a PHP string?
... php docs:
string substr ( string $string , int $start [, int $length ] )
If start is negative, the returned string will start at the start'th character from the end of string.
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MySQL search and replace some text in a field
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Like Pring, if you're going to leave a comment like that, you might want to explain why. Was it a mistake in the original advice, or a mistake on your part? And you do know that before you make any sweeping changes to a database you ar...
What are the different usecases of PNG vs. GIF vs. JPEG vs. SVG?
...means the image is made (even) smaller, but at a detriment to the quality. If you saved an image in a Lossy format over and over, the image quality would get progressively worse and worse.
There are also different colour depths (palettes): Indexed color and Direct color.
Indexed means that the ...
What is the meaning of the CascadeType.ALL for a @ManyToOne JPA association
...orphans. However the inverse case (annotating the User) would make sense - if an address belongs to a single user only, it is safe to propagate the removal of all addresses belonging to a user if this user is deleted.
BTW: you may want to add a mappedBy="addressOwner" attribute to your User to sig...
How to make a python, command-line program autocomplete arbitrary things NOT interpreter
...t readline
def completer(text, state):
options = [i for i in commands if i.startswith(text)]
if state < len(options):
return options[state]
else:
return None
readline.parse_and_bind("tab: complete")
readline.set_completer(completer)
The official module docs aren't ...
How can I set the Secure flag on an ASP.NET Session Cookie?
...es including session in SSL only and also inside forms authentication, but if you turn on SSL on httpcookies you must also turn it on inside forms configuration too.
Edit for clarity:
Put this in <system.web>
<httpCookies requireSSL="true" />
...
'dragleave' of parent element fires when dragging over children elements
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If you don't need to bind events to the child elements, you can always use the pointer-events property.
.child-elements {
pointer-events: none;
}
...
BASH copy all files except one
...
Simple, if src/ only contains files:
find src/ ! -name Default.png -exec cp -t dest/ {} +
If src/ has sub-directories, this omits them, but does copy files inside of them:
find src/ -type f ! -name Default.png -exec cp -t dest/ {...
Java FileReader encoding issue
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Yes, you need to specify the encoding of the file you want to read.
Yes, this means that you have to know the encoding of the file you want to read.
No, there is no general way to guess the encoding of any given "plain text" file.
The one-argu...
launch sms application with an intent
... an activity with the following attributes in its intent filter in your manifest? <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" />
– jqpubliq
Mar 3 '10...