PHP Array operation--method to get the last value of the array, PHP array _php tutorial

PHP Array operation--method to get the last value of the array, PHP array

In the course of PHP development, it is often necessary to get the last health or value of an array for an array to be fetched. The home Help House summarizes three methods and describes the conditions under which they are used in some cases, according to their three methods.

<?php $array =array (1,2,3,4,5); Echo $array [Count ($array) -1];//computes the length of the array, and then gets the last element of the array, if the last element in the array contains a non-numeric key name, the result may not match the expected//applied to the array with the key named number Echo '
'; Echo End ($array);//The inner pointer of the array points to the last cell, for all arrays echo '
'; Rsort ($array);//reverse sequence of arrays, if the array contains letters or Chinese characters, the result may not meet the expected, the most suitable for the numeric array echo $array [0];?>

Overall, PHP's built-in function end is the best way to do it. We can test it.

PHP is easy to use, can be used loop traversal, class pointers (personally called), but if you go to the last value of the array is also used to traverse the words are not consumed a lot of performance ah??

There are three ways to take the last value of an array better:

This is the three function of the method of the value, directly valid, select it on Demand

March 31, 2012 Edit: The second method has a disadvantage, the Array_pop () function will be the last number of the original data "out", that is, the equivalent of cutting meaning, the original data will not have the last value

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