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How to initialize static variables
...t of times the array could potentially be initialized - i.e., lots of heap allocation. Since php is written in C, I'd imagine the translation would resolve to a function returning a pointer to an Array per call... Just my two cents.
– zeboidlund
Aug 22 '12 at ...
startsWith() and endsWith() functions in PHP
...s so far seem to do loads of unnecessary work, strlen calculations, string allocations (substr), etc. The 'strpos' and 'stripos' functions return the index of the first occurrence of $needle in $haystack:
function startsWith($haystack,$needle,$case=true)
{
if ($case)
return strpos($hays...
ios Upload Image and Text using HTTP POST
...programmed to accept.
NSMutableDictionary* _params = [[NSMutableDictionary alloc] init];
[_params setObject:[NSString stringWithString:@"1.0"] forKey:[NSString stringWithString:@"ver"]];
[_params setObject:[NSString stringWithString:@"en"] forKey:[NSString stringWithString:@"lan"]];
[_params setObje...
What does yield mean in PHP?
...just a simple array. You can iterate on both.
Also, the first one does not allocate a full array and is therefore less memory-demanding.
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How to get a variable name as a string in PHP?
...ments something called "copy-on-write" so that $foo = $bar doesn't need to allocate extra memory straight away) or because they have been assigned (or passed to a function) by reference (e.g. $foo =& $bar). So a zval has no name.
When you pass a parameter to a function you are creating a new var...
PHP memory profiling
..., to see how much memory my data is using, and/or which function calls are allocating the most memory.
4 Answers
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How to Free Inode Usage?
...arge number of inodes used even if the disk is not very full.
An inode is allocated to a file so, if you have gazillions of files, all 1 byte each, you'll run out of inodes long before you run out of disk.
It's also possible that deleting files will not reduce the inode count if the files have mul...
Using scanf() in C++ programs is faster than using cin?
... at runtime, it usually has an advantage of not requiring excessive memory allocations (this depends on your compiler and runtime). That said, unless performance is your only end goal and you are in the critical path then you should really favour the safer (slower) methods.
There is a very deliciou...
How to destroy an object?
...to null can work in some cases, as long as nothing else is pointing to the allocated memory.
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PHP DateTime::modify adding and subtracting months
...ch could be a problem both supply-end (say if there is a monthly bandwidth allocation and Feb goes to waste and March gets doubled up on) and demand-end (users feel cheated out of Feb and perceive the extra March as attempt to correct mistake). On the other hand, notice that the two date sets:
neve...