php中array_unique去除二维数组中重复的数组

<?php
$input = array(“a” => “green”,”", “red”,”b” => “green”, “”,”blue”, “red”,”c” => “witer”,”hello”,”witer”);
//$result = array_unique($input); //去除重复元素
$result = a_array_unique($input);?? //只留下单一元素
foreach($result as $aa)
{
echo $aa.”<br />”;
}
function multi_unique($array) {
foreach ($array as $k=>$na)
$new[$k] = serialize($na);
$uniq = array_unique($new);
foreach($uniq as $k=>$ser)
$new1[$k] = unserialize($ser);
return ($new1);
}

function a_array_unique($array)//写的比较好
{
$out = array();
foreach ($array as $key=>$value) {
if (!in_array($value, $out))
{
$out[$key] = $value;
}
}
return $out;
}
?>

function unique_arr($array2D,$stkeep=false,$ndformat=true)
{
// 判断是否保留一级数组键 (一级数组键可以为非数字)
if($stkeep) $stArr = array_keys($array2D);
// 判断是否保留二级数组键 (所有二级数组键必须相同)
if($ndformat) $ndArr = array_keys(end($array2D));
//降维,也可以用implode,将一维数组转换为用逗号连接的字符串
foreach ($array2D as $v){
$v = join(“,”,$v);
$temp[] = $v;
}
//去掉重复的字符串,也就是重复的一维数组
$temp = array_unique($temp);
//再将拆开的数组重新组装
foreach ($temp as $k => $v)
{
if($stkeep) $k = $stArr[$k];
if($ndformat)
{
$tempArr = explode(“,”,$v);
foreach($tempArr as $ndkey => $ndval) $output[$k][$ndArr[$ndkey]] = $ndval;
}
else $output[$k] = explode(“,”,$v);
}
return $output;
}
$array2D = array(‘first’=>array(‘title’=>’1111′,’date’=>’2222′),’second’=>array(‘title’=>’1111′,’date’=>’2222′),’third’=>array(‘title’=>’2222′,’date’=>’3333′));
print_r($array2D);
print_r(unique_arr($array2D,true));

global $var1,$var2;

<?php
$var1 = 1;$var2 = 2;
function test(){   
global $var1,$var2;
// 作用范围在函数体内   
$var1 = 3;}
test();
echo $var1;
?>

$glpbal $a;  $a=123;   function f()  {  echo $a; //错误,  } 

function f()  {  global $a;  $a=123;  }   f();  echo $a; //正确,可以使用

<?php
/*
*author:ajax123
*qq:283400245
*/
class person{
static$name="ajax123";//static声明静态属性
static$age=25;//static声明静态属性
static$address="北京";//static声明静态属性
function song(){
echo "My name is : ".self::$name."<br>";//类内部:通过通过self 类访问静态属性
echo "I am ".self::$age."<br>";//类内部:通过通过self 类访问静态属性
echo "I live in ".self::$address."<br>";//类内部:通过self 类访问静态属性
}
}
echoperson::$name."<br>";//类外部:通过类名person访问静态属性
echoperson::$age."<br>";//类外部:通过类名person访问静态属性
echoperson::$address."<br>";//类外部:通过类名person访问静态属性
?>

<?php
function test() {
    $foo = "local variable";

    echo '$foo in global scope: ' . $GLOBALS["foo"] . "n";
    echo '$foo in current scope: ' . $foo . "n";
}

$foo = "Example content";
test();
?>

<?php

class Person

{

private $name = “NoName”; //private成员$name

public function getName() {

return $this->name;

}

}

$newperson = new Person();

echo ” ” . $newperson->getName();

?>

<?php

class Person

{

private $a;

function setA($_a) {

$thia->a = $_a;

}

function getA() {

return $this->a;

}

}

$newperson = new Person();

$newperson->setA(100);

echo $newperson->getA();

?>

<?php

class A

{

public $name = “tom”;

}

class Person

{

private $a;

function setA($_a) {

$this->a = $_a;

}

function getA() {

return $this->a;

}

}

$a1 = new A();

$p = new Person();

$p->setA($a1);

echo $p->getA()->name;

?>

<?php

class Person

{

public $name = “NoName”; //定义public属性$name

public $age = 20; //定义public属性$age

}

$p = new Person(); //创建对象

echo ” ” . $p->name; //输出对象$p的属性$name

echo “<br />”;

echo ” ” . $p->age; //输出$age属性

?>

<?php

class Person

{

public $name = “NoName”; //公共变量$name

public $age = 20; //公共变量$age

}

$p = new Person();

$p->name = “Tom”; //我是Tom

$p->age = 25 ; //年龄25

echo ” ” . $p->name; //输出名字

echo “<br />”;

echo ” ” . $p->age; //年龄

?>

<?php
$a = 1;
include 'b.inc';
?>

<?php
$a = 1; /* global scope */

function Test()
{
    echo $a; /* reference to local scope variable */
}

Test();
?>

<?php
function Test_Global()
{&nbsp;&nbsp;
    include 'B.php';&nbsp;&nbsp;
    Test();&nbsp;&nbsp;
}&nbsp;&nbsp;

$a = 0 ;
Test_Global();
echo $a;
?>&nbsp;

//B.php 文件

<?php
function Test()
{
&nbsp;   global $a;//申明函数体Sum内使用的$a变量为global全局变量
&nbsp;   $a =1;
}
?>

//A.php 文件

<?php
function Test_Global()
{&nbsp;&nbsp;
    Test();&nbsp;&nbsp;
}&nbsp;&nbsp;
include 'B.php';&nbsp;&nbsp; //将include 从局部Test_Global函数中移出
$a = 0 ;
Test_Global();
echo $a;
?>&nbsp;

//B.php 文件

<?php
function Test()
{
    global $a;
    $a =1;
}
?>

//A.php 文件
<?php
include 'B.php';&nbsp;
$a =0;
Set_Global($a);
echo $a;
?>&nbsp;

//B.php 文件

<?php
function Set_Global(&$var)
{
    $var=1;
}
?>