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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

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

Php basic knowledge Summary (1) array, basic knowledge array I. Sorting1. asort-Positive Sorting to maintain the index relationship2. arsort-reverse sorting to maintain the index relationship3. sort -- sorting from the lowest to the highest4. ksort -

Php basic knowledge summary (1) array, basic knowledge array. Php basic knowledge summary (1) array, basic knowledge array 1, sorting 1, asort -- forward sorting, maintaining the index relationship 2, arsort -- reverse sorting, maintain the index

Organized the Array of very basic to grasp the knowledge points, hope to help beginners, but also hope that their future more use more mastery.Create an array Use the array constructor: var a=New Array (); // create an empty array var

Some php array learning notes. There are three types of php arrays: a numeric array with a numeric ID key, and an ID key in an array associated with a value multi-dimensional array containing one or more arrays, there are three types of php arrays:

Php array function Learning Record 2 1. check whether the given key name or index exists in the array -- array_key_exists Usage: array_key_exists ($ key (mixed), $ input (array) returns TRUE and FALSE $input_array=array("1"=>"java","op"=>"R","act"

An array is a variable that can store a group or a series of values. * Arrays are a basic data type. Array functions can also implement data structures such as stacks and queues. Subscript: the identifier of an array, that is, the code of a string

Subscript: The identifying name in the array is the code of the string or integer in the array Several index values in an array are referred to as several-dimensional arrays. Index value: An index is a structure that sorts the values of one or more

In java, the index of an array must be a number, and the number of arrays must be determined when the array is declared. Php is more flexible. indexes can make numbers or strings, and the number of arrays can be changed at will. Objective: to