PHP reset() 函数

输出数组中的当前元素和下一个元素的值，然后重置数组的内部指针到数组中的第一个元素：

   <?php
   $people = array("Peter", "Joe", "Glenn", "Cleveland");
  
   echo current($people) . "<br>";
   echo next($people) . "<br>";
  
   echo reset($people);
   ?> 
 

所有相关方法的演示：

   <?php
   $people = array("Peter", "Joe", "Glenn", "Cleveland");
  
  echo current($people) . "<br>"; // The current element is Peter
  echo next($people) . "<br>"; // The next element of Peter is Joe
  echo current($people) . "<br>"; // Now the current element is Joe
  echo prev($people) . "<br>"; // The previous element of Joe is Peter
  echo end($people) . "<br>"; // The last element is Cleveland
  echo prev($people) . "<br>"; // The previous element of Cleveland is Glenn
  echo current($people) . "<br>"; // Now the current element is Glenn
  echo reset($people) . "<br>"; // Moves the internal pointer to the first element of the array, which is Peter
   echo next($people) . "<br>"; // The next element of Peter is Joe
  
   print_r (each($people)); // Returns the key and value of the current element (now Joe), and moves the internal pointer forward
  ?>