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php: determine where function was called from
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You can use debug_backtrace().
Example:
<?php
function epic( $a, $b )
{
fail( $a . ' ' . $b );
}
function fail( $string )
{
$backtrace = debug_backtrace();
print_r( $backtrace );
}
epic( 'Hello', 'World' );
Output:
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How to request Administrator access inside a batch file
I am trying to write a batch file for my users to run from their Vista machines with UAC. The file is re-writing their hosts file, so it needs to be run with Administrator permissions. I need to be able to send them an email with a link to the .bat file. The desired behavior is that when they rig...
Find index of a value in an array
Can linq somehow be used to find the index of a value in an array?
8 Answers
8
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test if event handler is bound to an element in jQuery [duplicate]
Is it possible to determine whether an element has a click handler, or a change handler, or any kind of event handler bound to it using jQuery?
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Is it possible to send an array with the Postman Chrome extension?
I've been using Postman Chrome extension to test out my API and would like to send an array of IDs via post. Is there a way to send something list this as a parameter in Postman?
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How can I center a div within another div? [duplicate]
I suppose that the #container will be centered within #main_content . However, it is not. Why isn't this working, and how can I fix it?
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npm command to uninstall or prune unused packages in Node.js
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Note: Recent npm versions do this automatically when package-locks are enabled, so this is not necessary except for removing development packages with the --production flag.
Run npm prune to remove modules not listed in package.json.
From npm help prune:
This command removes "extraneous" packages...
What are the differences between poll and select?
I am referring to the POSIX standard select and poll system C API calls.
3 Answers
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Booleans, conditional operators and autoboxing
... of the expressions at compile time:
E1: `true ? returnsNull() : false` - boolean (auto-unboxing 2nd operand to boolean)
E2: `true ? null : false` - Boolean (autoboxing of 3rd operand to Boolean)
See Java Language Specification, section 15.25 Conditional Operator ? :
For E1, the types of the 2...
Pairs from single list
Often enough, I've found the need to process a list by pairs. I was wondering which would be the pythonic and efficient way to do it, and found this on Google:
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