php数组的合并与拆分 【转】

<?php  
$array1 = array("A","B","C","D");  
$array2 = array("1","2","3","4");  
$array3 = array("!","@","#","$");  
$arrayX = array_merge($array1, $array2, $array3);                   //将3个数组合并起来  
print_r($arrayX);  
?>

<?php  
$array1 = array("AA"=>"A","BB"=>"B","CC"=>"C","DD"=>"D");  
$array2 = array("AA"=>"1","BB"=>"2","CC"=>"3","DD"=>"4");  
$array3 = array("AA"=>"!","BB"=>"@","CC"=>"#","DD"=>"$");  
$arrayX = array_merge($array1, $array2, $array3);                   //合并数组  
print_r($arrayX);  
?>

<?php  
$array1 = array("AA"=>"A","BB"=>"B","CC"=>"C","DD"=>"D");  
$array2 = array("AA"=>"1","BB"=>"2","CC"=>"3","DD"=>"4");  
$array3 = array("AA"=>"!","BB"=>"@","CC"=>"#","DD"=>"$");  
$arrayX = array_merge_recursive($array1, $array2, $array3);         //合并数组  
print_r($arrayX);  
?>

<?php  
$array = array(1,2,3,4,5,6,7,8,9);  
$arrayX = array_splice($array, 2, 6);               //获取数组的第2个元素到第7个元素  
print_r($array);  
print_r($arrayX);  
?>