function of array processing function in PHP

This article mainly introduces the function of the array processing function in PHP, the interested friend's reference, hoped to have the help to everybody.

The code is as follows :

<?php//Change the case of the array key $arr 1=array ("a" = "Lamp", "db" = "database", "LANGUAGE" and "PHP"); Print_r (Array_change_key_case ($arr 1,case_upper)); echo "<br/>"; Print_r (Array_change_key_case ($arr 1,case_lower)); echo "
Summary : The above is the entire content of this article, I hope to be able to help you learn.

Related recommendations:

Summary of common methods for reading files in PHP

Php method for reading n rows at the end of a large file

PHP common file operation function and case analysis