How to use array_column() in php?

array_column() is a built-in function in php, which is used to merge a column of values ​​​​with the same key in the array to form a new array. It is more suitable for the data set returned by the database query.

array_column() Returns the value of a single column in the input array.

Syntax:

array_column(array,column_key,index_key);

Parameters:

●array: required. Specifies the multidimensional array (record set) to be used.

●column_key: required. The column whose value needs to be returned. Can be an integer index of a column of an index array, or a string key value of a column of an associative array. This parameter can also be NULL, in which case the entire array will be returned (very useful when used with the index_key parameter to reset the array key).

● Index_key: optional. The column used as the index/key of the returned array.

Return value: Returns an array. The value of this array is the value of a single column in the input array.

Use array_column()

First create a php file named array_column

Create a query data set That is, a multidimensional array.

Add the array_clumn function and add parameters. The first is the array, the second is the value column, and the third is the value column.

Assign the array obtained by array_column to a variable name.

Print the obtained name array print_r

Save the array_column file and run the file in the browser. Get the array.

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