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Do htmlspecialchars and mysql_real_escape_string keep my PHP code safe from injection?
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When it com>me m>s to database queries, always try and use prepared param>me m>terised queries. The mysqli and PDO libraries support this. This is infinitely safer than using escaping functions such as mysql_real_escape_string.
Yes, mysql_real_...
HashSet vs. List performance
...age went away after size 5, for objects after size 20.
1 item LIST strs tim>me m>: 617ms
1 item HASHSET strs tim>me m>: 1332ms
2 item LIST strs tim>me m>: 781ms
2 item HASHSET strs tim>me m>: 1354ms
3 item LIST strs tim>me m>: 950ms
3 item HASHSET strs tim>me m>: 1405ms
4 item LIST strs tim>me m>: 1126ms
4 item HASHSET strs tim>me m>:...
Is there an equivalent for var_dump (PHP) in Javascript?
We need to see what m>me m>thods/fields an object has in Javascript.
18 Answers
18
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How can I deploy an iPhone application from Xcode to a real iPhone device?
...oad ldid from Cydia and then use it like so: ldid -S /Applications/Accelerom>me m>terGraph.app/Accelerom>me m>terGraph
Also be sure that the binary is marked as executable: chmod +x /Applications/Accelerom>me m>terGraph.app/Accelerom>me m>terGraph
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What is a correct mim>me m> type for docx, pptx etc?
For older *.doc docum>me m>nts this was enough:
10 Answers
10
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Why do people write the #!/usr/bin/env python shebang on the first line of a Python script?
It seems to m>me m> like the files run the sam>me m> without that line.
21 Answers
21
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Why don't structs support inheritance?
... Square() doesn't know anything about Derived, it'll use only pointer arithm>me m>tic to access each elem>me m>nt of the array, increm>me m>nting by a constant amount (sizeof(A)). The assembly would be vaguely like:
for (int i = 0; i < values.Length; ++i)
{
A* value = (A*) (((char*) values) + i * sizeof(A...
How to determine when a Git branch was created?
...en a Git branch was created? I have a branch in my repo and and I don't rem>me m>mber creating it and thought maybe seeing the creation tim>me m>stamp would jog my m>me m>mory.
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Why use a ReentrantLock if one can use synchronized(this)?
... need to use a block structure for locking and can even hold a lock across m>me m>thods. An example:
private ReentrantLock lock;
public void foo() {
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lock.lock();
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}
public void bar() {
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lock.unlock();
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}
Such flow is impossible to represent via a single monitor in a synchroniz...
How to open a specific port such as 9090 in Google Compute Engine
...d I want to open port 9090 in both the instances. I think we need to add som>me m> firewall rules.
8 Answers
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