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
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
First, create a new arrayThe array has no size limit, so you can create an array simply by creating a reference, for example: $state [0]= ' 111 '; $state [1]= ' 222 '; If the index value is a numeric index and is incremented, the index value can
1. The concept of arrays
An array is a named range that is used to store a series of variable values.
Each array element has an associated index (also a keyword) that can be used to access elements.
PHP allows you to use numbers or strings evenly
The array_merge () function combines arrays and returns a Union array. The obtained array starts with the first input array parameter and is immediately added according to the order in which the following array parameters appear. The format is: 1.
During programming, I often forget the usage of some Arrays. I only remember that there is such a function. I don't know how to use it. now I use it as a manual.
During programming, I often forget the usage of some Arrays. I only remember that there
arrays, which can be said to be a more important way of using PHP data. PHP's Array function is numerous, below is my study summary, takes this to remember, facilitates later to learn.
1. Array definition
The definition of an array is defined using
basic functions of array manipulationThe key name and value of the arrayArray_values ($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
This article mainly share with you the PHP common Array function Summary. We will be divided into six parts to share with you, the first part is the basic function of array operation, the second part is the array of fragments and fills, the third
We do not have a lot of PHP data, we do not have a copy of the Php4gb.chm. I admire the function library part of it most, the real online help. But the pace of PHP development is so fast, you sui, I recently found some extended array functions in
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