Detailed explanation of array_combine() function in php

There are many array functions, you can master them one by one slowly. Now let’s make an introduction to the array_combine function. Its function is to combine two arrays, one by array key name and the other by array value, into a new array.

Detailed explanation of the array_combine() function in php

Create a new array by merging two arrays, where one array element is the key name and the other array element For key values:

Definition and usage

array_combine() function creates a new array by merging two arrays, where one array element is the key name and the other array element is key value.

Note: The number of elements in the key name array and the key value array must be the same!

Syntax

array_combine(keys,values);

Parameter Description

keys Required. Specifies the key name of the array. ​

values ​​Required. Specifies the key value of the array.

Technical details Return value:

Returns the merged array. If the two arrays have different numbers of elements, return FALSE.

PHP Version: 5+ Update log:

Before PHP 5.4, if the array is empty, an E_WARNING level error will be reported and FALSE will be returned.

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