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
I. Details about resource classification in Android 1. Android Resource ClassificationResources in Android fall into two categories: resources that can be accessed directly and native resources that cannot be accessed directly;-- Direct access to
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
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.
Two-dimensional array, multidimensional array, string array;
Two-dimensional arrays:
The concept of a two-dimensional array: An array of two subscripts following an array name is called a two-dimensional array
Definition: Type descriptor array name [
From: http://www.ibm.com/developerworks/cn/java/j-arrays/#3
Array reflection
If, for some reason, you are not sure whether the parameter or object is an array, you can retrieveClassObject and ask it.ClassClassisArray()The method will tell you. Once
This paper illustrates the common operation of JS array and the method of mutual transformation between array and string. Share to everyone for your reference, specific as follows:
The transformation of array and string
Common
This article mainly introduces how to learn PHP arrays [experience]. For more information, see
PHP has many array functions to facilitate array operations.
Definition:
Each object in the array contains two items: key and value. you can use the
This article mainly introduces how to learn PHP arrays [experience]. For more information, see
PHP has many array functions to facilitate array operations.
Definition:
Each object in the array contains two items: key and value. you can use the
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