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How to convert PascalCase to pascal_case?
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$output = strtolower(preg_replace('/(?<!^)[A-Z]/', '_$0', $input));
PHP Demo |
Regex Demo
Note that cases like SimpleXML will be converted to simple_x_m_l using the above solution. That can also be considered a wrong usage of camel case notation (correct would be SimpleXml) rather than a b...
.rar, .zip files MIME Type
I'm developing a simple php upload script, and users can upload only ZIP and RAR files.
6 Answers
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How do function pointers in C work?
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I like this answer but don't cast malloc
– cat
Sep 29 '16 at 14:41
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show 2 more comments
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How to calculate the bounding box for a given lat/lng location?
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Here is a PHP implementation from the specification found at JanMatuschek.de: github.com/anthonymartin/GeoLocation.class.php
– Anthony Martin
Dec 3 '12 at 14:10
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JavaScript function similar to Python range()
...like: if (stop === undefined) { 3 equals signs is compare without auto casting. compare as is also compare type. 2 equal signs is compare with auto casting to other side type.
– Shimon Doodkin
Mar 27 '18 at 12:48
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Download File Using jQuery
...this might not always be handful....
It is better to create a server side php-file and place this content in it:
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename='.$_REQUEST['f']);
readfile('../some_folder/some_subfolder/'.$_REQUEST['f']);
exit;
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Are there any JavaScript static analysis tools? [closed]
...s answer) I have have also gotten a lot of benefit from running JSHint and PHP CodeSniffer. As of 2012, all four tools are free open-source and have a large and active developer community behind them. They're each a bit different (and I think, complementary) in the kinds of checks they perform:
JS...
How to calculate a time difference in C++
...ow(); }
double elapsed() const {
return std::chrono::duration_cast<second_>
(clock_::now() - beg_).count(); }
private:
typedef std::chrono::high_resolution_clock clock_;
typedef std::chrono::duration<double, std::ratio<1> > second_;
std::chrono...
Doctrine - How to print out the real sql, not just the prepared statement?
We're using Doctrine, a PHP ORM. I am creating a query like this:
19 Answers
19
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Get the first N elements of an array?
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Use array_slice()
This is an example from the PHP manual: array_slice
$input = array("a", "b", "c", "d", "e");
$output = array_slice($input, 0, 3); // returns "a", "b", and "c"
There is only a small issue
If the array indices are meaningful to you, remember that ar...