Shulou(Shulou.com)06/03 Report--

This article mainly introduces "how to modify the key name of one-dimensional array by php". In daily operation, I believe many people have doubts about how to modify the key name of one-dimensional array by php. The editor consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubt of "how to modify the key name of one-dimensional array by php". Next, please follow the editor to study!

1. The array_combine () function creates a new array by merging two arrays, one of which is the key name and the other is the key value.

2. the number of elements in the two arrays must be the same.

Only in this way can the key name correspond to the key value one by one, otherwise an error will be reported and FALSE will be returned.

Example

We define an array of key names $key as the first parameter of the array_combine () function (the key name of the new array). The original array $arr serves as the second parameter of the array_combine () function (the key value of the new array).

The new array obtained in this way is the array with the new key name (the key value has not changed).

At this point, the study of "how to modify the key name of an one-dimensional array by php" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.