1）_callStatic() magic 方法
classFoo
{
publicstaticfunction__callStatic( $name, $args)
{
echo"Called method $name statically";
}
publicfunction__call( $name, $args)
{
echo"Called method $name";
}
}Foo::dog(); // outputs "Called method dog statically" $foo= newFoo; $foo->dog(); // outputs "Called method dog"
2）<span style="font-family:nsimsun">动态调用函数</span>
classDog
{
publicfunctionbark()
{
echo"Woof!";
}
<span style="color: #333399;">}
$class= "Dog"
$action= "bark";
$x= new$class();
// instantiates the class "Dog"
$x->$action();
// outputs "Woof!" </span>3) 标准PHP库（SPL）
加了了少数几个容器类，比如，栈（SplStack）和固定数组（SplFixedArray）
$stack= newSplStack();
// push a few new items on the stack
$stack->push("a");
$stack->push("b");
$stack->push("c");
// see how many items are on the stack
echocount($stack);
// returns 3
// iterate over the items in the stack
foreach( $stackas$item)
echo"[$item],";
// the above outputs: 1
[/c],[b],[a]
// pop an item off the stack echo $stack->pop(); // returns "c" // now see how many items are on the stack echo count($stack); // returns 24) Closures 功能
关于Closures，这是一个把函数定义成变量的玩意。让我们看几个例子：
示例一：
$string= "Hello World!";
$closure= function() use($string) { echo$string; };
$closure();Output:
Hello World!
示例二 使用引用的变量
$x= 1
$closure= function() use(&$x) { ++$x; }
echo$x. "\\n";
$closure();
echo$x. "\\n";
$closure();
echo$x. "\\n";Output:
1
2
3
示例三，返回值
functiongetAppender($baseString)
{
returnfunction($appendString) use($baseString)
{ return$baseString.$appendString; };
}示例四，Reflection
classCounter
{
private$x;
publicfunction__construct()
{
$this->x = 0;
}
publicfunctionincrement()
{
$this->x++;
}
publicfunctioncurrentValue()
{
echo$this->x . "\\n";
}
}
$class= newReflectionClass("Counter");
$method= $class->getMethod("currentValue");
$closure= $method->getClosure()
$closure();
$class->increment();
$closure();Output:
0
1
示例五，Reflection API
$closure= function($x, $y= 1) {};
$m= newReflectionMethod($closure);
Reflection::export ($m);
<strong>Output</strong>:
Method [ publicmethod __invoke ] {
- Parameters [2] {
Parameter #0 [ $x]
Parameter #1 [ $y]
}
}示例六，Uses Case
$logdb= function($string) { Logger::log("debug","database",$string);};
$db= mysqli_connect("server","user","pass");
$logdb("Connected to database");
$db->query("insert into parts (part, description) values
("Hammer","Pounds nails");
$logdb("Insert Hammer into to parts table");
$db->query("insert into parts (part, description) values
("Drill","Puts holes in wood");
$logdb("Insert Drill into to parts table");
$db->query("insert into parts (part, description) values
("Saw","Cuts wood");
$logdb("Insert Saw into to parts table");更为详细的文章，请参考这里，链接。
5) 使用namespace
新版的PHP会开始支持C++式的namespace，请参看示例：
示例一
/* Foo.php */
<?php
namespaceFoo;
functionbar()
{
echo"calling bar....";
}
?>
/* File1.php */
<?php
include"./Foo.php";
Foo/bar();
// outputs "calling bar....";
?>
/* File2.php */
<?php
include"./Foo.php";
useFoo asns;
ns/bar();
// outputs "calling bar....";
?>
/* File3.php */
<?php
include"./Foo.php";
useFoo;
bar();
// outputs "calling bar....";
?>
<!--p include"./Foo.php"; useFoo; bar();
// outputs "calling bar....";-->示例二，多重namespace
<!--p namespaceFoo; classTest {} namespaceBar; classTest {} $a= newFoo\\Test; $b= newBar\\Test; var_dump($a, $b);--> <?php
namespaceFoo;
classTest {}
namespaceBar;
classTest {}
$a= newFoo\\Test;
$b= newBar\\Test;
var_dump($a, $b);
Output:
object(Foo\\Test)#1 (0) {
}
object(Bar\\Test)#2 (0) {
}
<strong>Output:</strong>
object(Foo\\Test)#1 (0) { }
object(Bar\\Test)#2 (0) { }示例三，不同文件中的namespace
/*定义*/
/* global.php */
<?php
functionhello()
{
echo"hello from the global scope!";
}
?>
/* Foo.php */
<?php
namespaceFoo;
functionhello()
{
echo"hello from the Foo namespace!";
}
?>
/* Foo_Bar.php */
<?php
namespaceFoo/Bar;
functionhello()
{
echo"hello from the Foo/Bar namespace!";
}
?>
<!--p namespaceFoo/Bar; functionhello() { echo"hello from the Foo/Bar namespace!"; }-->
/*使用 */
<!--p include"./global.php"; include"./Foo.php"; include"./Foo_Bar.php"; useFoo; hello();
// outputs "hello from the Foo namespace!" Bar\\hello(); // outputs "hello from the Foo/Bar namespace!" \\hello(); // outputs "hello from the global scope!"--><?php
include"./global.php";
include"./Foo.php";
include"./Foo_Bar.php";
useFoo;
hello();
// outputs "hello from the Foo namespace!"
Bar\\hello();
// outputs "hello from the Foo/Bar namespace!"
\\hello();
// outputs "hello from the global scope!"
?>更为详细的文章，请参考这里，链接。
6)开始支持Achieve包
正像JAR一样，PHP也要开始支持自己的Achieve包了，叫作，Phar。PHP提供了一整套函数来帮助开发人员创建和使用Phar，正如下面的示例所示：
创建：
$p= newPhar("/path/to/my.phar",
CURRENT_AS_FILEINFO | KEY_AS_FILENAME, "my.phar");
$p->startBuffering();创建文件存根（stub）
$p->setStub("<!--p Phar::mapPhar(); include "phar:
//myphar.phar/index.php"; __HALT_COMPILER();-->");加入文件：
$p["file.txt"] = "This is a text file";
$p["index.php"] = file_get_contents("index.php");
$p["big.txt"] = "This is a big text file";
$p["big.txt"]->setCompressedBZIP2();
//加入某目录下所有的文件
$p->buildFromDirectory("/path/to/files","./\\.php$/");使用Phar
include"myphar.phar"; include"phar://myphar.phar/file.php";
更为详细的文章，请参考这里，链接。
So öffnen Sie eine PHP-Datei
So entfernen Sie die ersten paar Elemente eines Arrays in PHP
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So verbinden Sie PHP mit der MSSQL-Datenbank
So verbinden Sie PHP mit der MSSQL-Datenbank
So laden Sie HTML hoch
So lösen Sie verstümmelte Zeichen in PHP
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