I have a web application that runs fine on our Linux servers but when running on Mac OS with the Zend Community Edition Server using PHP 5.3 we get the error: usort(): Array was modified by the ...

I have an array that looks like this array(24) { ["#HiddenId"]=> string(24) "2013-11-08T11:59:54.378Z"] } It has multiple ids/dates but I want to sort it by date (most recent) I know how to ...

array(10) { [1019]=> array(3) { ["quantity"]=> int(0) ["revenue"]=> int(0) ["seller"]=> string(5) "Lenny" } [1018]=> array(3) { ["quantity"]=> int(5) ["revenue"]=> int(121) [...

I'm using usort to sort an array with an associative array within each element. When all of the values I am sorting on in the array are the same then it still changes the position of the elements ...

At first, I'll give a link to code: http://ideone.com/6k8R6 On my Intel Core 2 Duo, PHP 5.4.6 result is: usort: 7.8763520717621 quicksort: 2.9220938682556 (usort is slower than quicksort) But on Id...

There are numerous questions here asking how to sort a multi-dimensional array in PHP. The answer is usort(). I know that. But I have a question that takes it a bit further, and I couldn't see a si...

I think I might have read every usort article on StackOverflow, but I can't work out this one. It might be that usort is not the tool I need? Here's a bit of the array that I'm working with (I have...

I am using usort with a user comparison function to sort an array of objects. After running usort on an array of these objects, I've found that some of the values of the objects have changed along ...

Consider following array $details = array( array('lname'=>'A', 'fname'=>'P','membkey'=>700,'head'=>'y'), array('lname'=>'B', 'fname'=>'Q','membkey'=>540,'head'=>'n'), ...