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How to parse a CSV file using PHP [duplicate]
... CSV file
http://php.net/manual/en/function.fgetcsv.php
$row = 1;
if (($handle = fopen("test.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$num = count($data);
echo "<p> $num fields in line $row: <br /></p>\n";
$row++;
for ($...
How to use QueryPerformanceCounter?
...eded to change from using milliseconds to microseconds for my Timer class, and after some research I've decided that QueryPerformanceCounter is probably my safest bet. (The warning on Boost::Posix that it may not works on Win32 API put me off a bit). However, I'm not really sure how to implement i...
When to use valueChangeListener or f:ajax listener?
...
The valueChangeListener will only be invoked when the form is submitted and the submitted value is different from the initial value. It's thus not invoked when only the HTML DOM change event is fired. If you would like to submit the form during the HTML DOM change event, then you'd need to add an...
How do you list all triggers in a MySQL database?
What is the command to list all triggers in a MySQL database?
4 Answers
4
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How do I calculate a point on a circle’s circumference?
... r * cos(a)
y = cy + r * sin(a)
Where r is the radius, cx,cy the origin, and a the angle.
That's pretty easy to adapt into any language with basic trig functions. Note that most languages will use radians for the angle in trig functions, so rather than cycling through 0..360 degrees, you're cycli...
Regex: match everything but specific pattern
... but a string starting with a specific pattern (specifically index.php and what follows, like index.php?id=2342343 )
7...
Using port number in Windows host file
...ws as well as on Unix-like systems). You cannot put port numbers in there, and there is no way to do what you want with generic OS-level configuration - the browser is what selects the port to choose.
So use bookmarks or something like that.
(Some firewall/routing software might allow outbound port...
Postgres - FATAL: database files are incompatible with server
...
If you recently upgraded to 11 or 12 from 10.x you can run the below command to upgrade your postgres data directory retaining all data:
brew postgresql-upgrade-database
The above command is taken from the output of brew info postgres
...
Calling dynamic function with dynamic number of parameters [duplicate]
...n generate another array with all the arguments except the very first one, and then use this new array, but, are there any other solution which not using other array?
– ARemesal
Mar 24 '09 at 11:18
...
AttributeError: 'module' object has no attribute
...it, but in fact the import work only gets done the first time. The second and subsequent times you import a module, it's a quick operation.)
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