Php Array Index

An array is a collection of data that organizes a series of data to form an operational whole. Each entity in the array contains two keys and values. First, what is the array Array is a collection of data, a series of data organized together to form an operational whole. Each entity in the array contains two keys and values. Second, the statement data There are two main ways to declare an array in PHP: First, the array () function declaration array, one is directly assigned to the array element. Fei Fei Asp! Technology Paradise <1> array () function ...

Array definition and initialization What is an array? An array is a programming structure that is a variable that holds a set of values ​​or a series of values. For example, at the time of the census, personal identity registration, such as name, gender, nationality, birth, etc. can be used as an array. The array created in the php tutorial is defined using the array () structure, such as $ people = array ('name', 'sex', 'nation', 'brith'); and how to display the value of each element in the array Is to use the index from 0, the index number ...

Array (unknown) array---Create a new array syntax: array&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Array ([mixed ...]); Description: Returns an array of parameters that can be given an index value with the "=>" operator, which is not a normal function, mainly used to represent an array ...

Each (PHP3, PHP4)---returns key/http://www.aliyun.com/zixun/aggregation/9541.html from the array >value to syntax: array each (array Array); Description: Returns the current key/value pair from array arrays and moves the array cursor (cursor) forward. Returned array ...

Array_merge_recursive (PHP4 >= 4.0.1) array_merge_recursive---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Recursively merges more than two array syntax: array array_merge_recursive (array array ...)

Array_merge (PHP4) array_merge---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Merges more than two array syntaxes: Array array_merge (array array1, array array2 [, array ...]); Explain ...

Array_keys (PHP4) array_keys---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Returns all index-value syntax for an array: array array_keys (array input [, mixed search_value]); Description: This function from the parameter input ...

Compact (PHP4) Compact---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Creates an array containing variables and their value syntax: Array compact (string VarName | array varnames, [...]); Note: This function takes a variable number of parameters, each variable can be ...

Array_count_http://www.aliyun.com/zixun/aggregation/9541.html ">values (PHP4 >= 4.0b4) array_count_values--- Computes all value syntax: array array_count_values (array input); Description: This function returns a computed array knot ...

Array_unique (PHP4 >= 4.0.1) array_unique---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Removing the same value syntax from an array: array array_unique (array array) Description: Array_unique () takes the input arra ...