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How do I expire a PHP session after 30 minutes?

... collector is only started with a probability of session.gc_probability divided by session.gc_divisor. And using the default values for those options (1 and 100 respectively), the chance is only at 1%. Well, you could simply adjust these values so that the garbage collector is started more often. B...
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Disabled form inputs do not appear in the request

...ielson317 You can keep the select element "disabled" but also add another hidden input with the same value. – AlphaMale May 5 '15 at 3:34 1 ...
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Android Gallery on Android 4.4 (KitKat) returns different URI for Intent.ACTION_GET_CONTENT

... startActivityForResult(intent, GALLERY_KITKAT_INTENT_CALLED); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode != Activity.RESULT_OK) return; if (null == data) return; U...
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MySQL: Fastest way to count number of rows

...a from mysql to php. Why do it when you can achieve the same on the mysql side? If the COUNT(*) is slow, you should run EXPLAIN on the query, and check if indexes are really used, and where should they be added. The following is not the fastest way, but there is a case, where COUNT(*) doesn't re...
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jQuery hasAttr checking to see if there is an attribute on an element [duplicate]

...turn false as well. It should be true, because an empty attribute is a valid attribute. Also, there's no need for a double-not because if casts it down to bool anyway. – strager Feb 4 '11 at 1:15 ...
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textarea's rows, and cols attribute in CSS

... width and height are used when going the css route. <!DOCTYPE html> <html> <head> <title>Setting Width and Height on Textareas</title> <style> .comments { wi...
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Android : Check whether the phone is dual SIM

...te 23 March'15 : Official multiple SIM API is available now from Android 5.1 onwards Other possible option : You can use Java reflection to get both IMEI numbers. Using these IMEI numbers you can check whether the phone is a DUAL SIM or not. Try following activity : import android.ap...
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What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?

... result is the first column of the first row. An example might be SELECT @@IDENTITY AS 'Identity'. ExecuteReader is used for any result set with multiple rows/columns (e.g., SELECT col1, col2 from sometable). ExecuteNonQuery is typically used for SQL statements without results (e.g., UPDATE, INSERT,...
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changing source on html5 video tag

i'm trying to build a video player, that works everywhere. so far i'd be going with: 16 Answers ...
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How to handle code when app is killed by swiping in android?

...r listeners, how can i do that? I read quite a few articles and blogs but didn't get any useful information and I haven't found any documentation about it. Any help would be appreciated. Thanks in advance. ...