Php array traversal foreach ($ arras & $ value) usage

Php array traversal foreach ($ arras & amp; $ value) usage

This article introduces how to use foreach loop to traverse arrays in php. For more information, see. From php5, you can add & before $ value to modify the elements of the array. This method will assign values by reference instead of copying a value, which reduces the waste of space and is a good method. Example: This method is only available when the retrieved array can be referenced (for example, a variable ). Example: Http://bbs.it-home.org/shouce/php5/control-structures.foreach.html