php去除数组中重复元素

PHP中array_unique()只能处理数组中只有单个的数组，去除有多个value数组，可以使用自己创建函数实现：

$arr = array(  
	'0'=>array('name'=>'james','age'=>30,),  
	'1'=>array('name'=>'susu','age'=>26,),
	'2'=>array('name'=>'james','age'=>30,),
	'new'=>array('name'=>'kube','age'=>37,),
	'list'=>array('name'=>'kube','age'=>27,),
	'435'=>array('name'=>'susu','age'=>26,),
	'33'=>array('name'=>'james','age'=>30,), 
);  
	   
printf("原来的数组:");   //输出原来的数组 
print_r($arr);  $arr_new = more_array_unique($arr);  //调用去重函数	
printf("去除重复元素后的数组:");  
print_r($arr_new);  

//创建去重复元素函数
function more_array_unique($arr=array()){  
    foreach($arr[0] as $k => $v){  
        $arr_inner_key[]= $k;   //先把二维数组中的内层数组的键值记录在在一维数组中  
    }  
    foreach ($arr as $k => $v){  
        $v =join(",",$v);    //降维 用implode()也行  
        $temp[$k] =$v;      //保留原来的键值 $temp[]即为不保留原来键值  
    }  
    $temp =array_unique($temp);    //去重：去掉重复的字符串  
    foreach ($temp as $k => $v){  
        $a = explode(",",$v);   //拆分后的重组 如：Array( [0] => james [1] => 30 )  
        $arr_after[$k]= array_combine($arr_inner_key,$a);  //将原来的键与值重新合并  
    }  
    return $arr_after;  
} 

运行结果：

原来的数组:
Array ( 
[0] => Array ( [name] => james [age] => 30 ) 
[1] => Array ( [name] => susu [age] => 26 ) 
[2] => Array ( [name] => james [age] => 30 ) 
[new] => Array ( [name] => kube [age] => 37 ) 
[list] => Array ( [name] => kube [age] => 27 ) 
[435] => Array ( [name] => susu [age] => 26 ) 
[33] => Array ( [name] => james [age] => 30 ) 
)
去除重复元素后的数组:
Array ( 
[0] => Array ( [name] => james [age] => 30 ) 
[1] => Array ( [name] => susu [age] => 26 ) 
[new] => Array ( [name] => kube [age] => 37 ) 
[list] => Array ( [name] => kube [age] => 27 )
)