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Difference between VARCHAR and TEXT in MySQL [duplicate]
... (at least if you use mysqli without store_result), you maybe get a memory allocation error, because PHP tries to allocate 4 GB of memory to be sure the whole string can be buffered. This maybe also happens in other languages than PHP.
However, you should always check the input (Is it too long? Doe...
What's better to use in PHP, $array[] = $value or array_push($array, $value)?
...unction and it called multiple times when it is inside the loop so it will allocate a memory into the stack.
But when we are using $array[] = $value then we just assigning value to array.
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Reusing output from last command in Bash
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The answer is no. Bash doesn't allocate any output to any parameter or any block on its memory. Also, you are only allowed to access Bash by its allowed interface operations. Bash's private data is not accessible unless you hack it.
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Use basic authentication with jQuery and Ajax
... Would you please tell me , how to do it for each user? I mean get api token for each user from database and send it with ajax header.
– Haniye Shadman
Jul 27 '19 at 7:46
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How to read from standard input in the console?
..."Text returns the most recent token generated by a call to Scan as a newly allocated string holding its bytes." which exactly answers your question. golang.org/pkg/bufio/#Scanner.Text
– Naren Yellavula
Jul 21 at 7:55
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What is copy-on-write?
...ncurrency sorts of problems. In ZFS, for example, data blocks on disk are allocated copy-on-write; as long as there are no changes, you keep the original blocks; a change changed only the affected blocks. This means the minimum number of new blocks are allocated.
These changes are also usually im...
What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet?
... would every client connected to my server using ws: would have one thread allocated to him/her and its size would be ~2mb as is the case with normal requests? how would that differ in nodejs? How many concurrent clients can nodejs handle and when it breaks what happens?
– Muha...
App Inventor 2 实现上传文件到服务器全方案总结 · App Inventor 2 中文网
...rmance.now();
const data = Buffer.isBuffer(req.body) ? req.body : Buffer.alloc(0);
fs.writeFileSync(path.join(dir, name), data);
res.type('text').send(`We're in the XFER Program...\nReceiving: ${name}\nBytes written: ${data.length}\nDuration: ${(performance.now() - start) / 1000}`);
});
app.us...
Is it better practice to use String.format over string Concatenation in Java?
...er than doing just one instantiation most likely due to the overhead of re-allocating space for the looping append at the end of one builder).
String formatString = "Hi %s; Hi to you %s";
long start = System.currentTimeMillis();
for (int i = 0; i < 1000000; i++) {
String s =...
Best way to clear a PHP array's values
... emptying it. When dealing with memory you know it's not the same thing as allocation is slow. So, despite the ease of use, re-instantiation might not be the answer to this question, especially if one needs to do it a lot of times and quickly. It might work, but that would heavily rely on PHP memory...