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How can I capture the result of var_dump to a string?
...put buffering will most likely have a negative effect on performance here. It also can get really messy if you need to look at multiple variables during the execution of a complex script.
– selfawaresoup
Dec 27 '09 at 16:45
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Best way to simulate “group by” from bash?
...addresses | uniq -c
This will print the count first, but other than that it should be exactly what you want.
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Placement of the asterisk in pointer declarations
...ng I do not really understand about pointers or more precisely, their definition.
12 Answers
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Commands out of sync; you can't run this command now
...ecause mysqli uses unbuffered queries by default (for prepared statements; it's the opposite for vanilla mysql_query). You can either fetch the first one into an array and loop through that, or tell mysqli to buffer the queries (using $stmt->store_result()).
See here for details.
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How to use a variable to specify column name in ggplot
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If for whatever reason you'd rather not use aes_string, you could change it to (the somewhat more cumbersome):
ggplot( rates.by.groups, aes(x=name, y=rate, colour= get(column),
group=get(column) ) )
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Are there any SHA-256 javascript implementations that are generally considered trustworthy?
I am writing a login for a forum, and need to hash the password client side in javascript before sending it on to the server. I'm having trouble figuring out which SHA-256 implementation I can actually trust. I was expecting there to be some kind of authoritative script that everyone used, but I'm f...
Pure virtual function with implementation
...he base type can still define an implementation. A derived class can explicitly call the base class implementation (if access permissions allow it) by using a fully-scoped name (by calling A::f() in your example - if A::f() were public or protected). Something like:
class B : public A {
virtu...
“android.view.WindowManager$BadTokenException: Unable to add window” on buider.show()
From my main activity , I need to call an inner class and in a method within the class, I need to show AlertDialog . After dismissing it, when the OK button is pressed, forward to Google Play for purchase.
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How to use java.net.URLConnection to fire and handle HTTP requests?
... about pretty often here, and the Oracle tutorial is too concise about it.
11 Answers
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How to list the files inside a JAR file?
...e == null)
break;
String name = e.getName();
if (name.startsWith("path/to/your/dir/")) {
/* Do something with this entry. */
...
}
}
}
else {
/* Fail... */
}
Note that in Java 7, you can create a FileSystem from the JAR (zip) file, and then use NIO's directory wa...