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PHP implements the method of finding a specific value in a multidimensional array, multidimensional value
The example in this article describes how PHP implements finding a specific value in a multidimensional array. Share to everyone for your
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
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
In PHP to implement the array search method There are many, I know the simplest is in_array and iterate after the array and then a comparison, there are more and better ways, let me introduce.
One-dimensional array search is simple In_array ()
If
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)
Learn PHP's array summary "experience", PHP array Summary
PHP has a lot of functions for arrays, which makes it easy to manipulate arrays.
Defined:
The array contains two items per entity: Key and value, which can be obtained by querying the key.
This article illustrates how PHP implements a method of finding a specific value in a multidimensional array. Share to everyone for your reference. Specifically as follows:
Recently, you need to look up a multidimensional array to see if it
This article illustrates the simple way to implement multidimensional array sorting in PHP. Share to everyone for your reference, specific as follows:
Before doing a function, you have to put the data into a two-dimensional array and sort, and then
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