array_merge_flip.php

 

<?php
$a1=array(3,4);
$a2=array(5,3);
$array = array_merge($a1,$a2);
var_dump($array);
$array = array_flip($array);
var_dump($array);
$array = array_flip($array);
var_dump($array);
/* 使用array_merge()函数修复键值*/
$array = array_merge($array);
var_dump($array);
?>

 

array (size=4)
  0 => int 3
  1 => int 4
  2 => int 5
  3 => int 3
array (size=3)
  3 => int 3
  4 => int 1
  5 => int 2
array (size=3)
  3 => int 3
  1 => int 4
  2 => int 5
array (size=3)
  0 => int 3
  1 => int 4
  2 => int 5