吴裕雄--天生自然 PHP开发学习：数组排序

<?php 
$cars=array("Volvo","BMW","Toyota");  
sort($cars);  
print_r($cars); 
?> 

<?php 
$numbers=array(4,6,2,22,11);  
sort($numbers);  
print_r($numbers);  
?> 

<?php 
$cars=array("Volvo","BMW","Toyota");  
rsort($cars);  
print_r($cars);  
?> 

<?php 
$numbers=array(4,6,2,22,11);  
rsort($numbers);  
print_r($numbers);  
?> 

<?php 
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");  
asort($age);  
print_r($age);  
?> 

<?php 
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43"); 
ksort($age); 
print_r($age); 
?> 

<?php 
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43"); 
arsort($age); 
print_r($age); 
?> 

<?php 
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43"); 
krsort($age); 
print_r($age); 
?>