Introduction to the Sort function-general Linux technology-Linux programming and kernel information. The following is a detailed description. Introduction to Sort Functions
Definition and syntax
Sort by numerical order
Sort by ASCII order
For Web programming, the most important thing is to access and read and write data. There may be many ways to store them, such as strings, arrays, files, and so on. arrays, which can be said to be a more important way of using PHP data. PHP's Array
1. The concept of arrays
An array is a named range that is used to store a series of variable values.
Each array element has an associated index (also a keyword) that can be used to access elements.
PHP allows you to use numbers or strings evenly
. NET Framework System. Array. Sort demo, array. sortContent
Custom class
Array. Sort
References
System. Array. Sort has many set operations, such as sorting, searching, and cloning. You can use this class to deepenIComparer,
basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Gets the value of the array Array_keys ($arr), gets the key name of the array array_flip ($arr), and the values in the array are exchanged with the key
When you are ready to write a go program in the evening, think about how go is sorted. Sorting sort is a basic operation, of course searching for search too. C provides a qsort and bsearch, a quick binary search, but not easy to use; the sort in C +
Basic functions of array manipulationThe key name and value of the arrayArray_values ($arr); Get the value of an arrayArray_keys ($arr); Gets the key name of the arrayArray_flip ($arr); the values in the array are exchanged with the key names (if
. NET Framework System. Array. Sort Array class, which converts arraylist to an ArrayContent
Custom class
Array. Sort
References
System. Array. Sort has many set operations, such as sorting, searching, and cloning. You can use this class to
arrays, which can be said to be a more important way of using PHP data. PHP's Array function is numerous, below is my study summary, takes this to remember, facilitates later to learn.
1. Array definition
The definition of an array is defined using
PHP has a lot of functions about arrays to facilitate array manipulation.
Defined:
Each entity of an array contains two items: key and value, which can be retrieved by a query key. These keys can be numeric (numerical) or associated (associative)
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