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<?php
class A
{
private $a = 99;
//ÕâÀïдһ¸ö´òÓ¡²ÎÊýµÄ·½·¨
public function printInt($a) {
echo "\$aÊÇ´«µÝµÄ²ÎÊý $a ";
echo "<br />";
echo "\$this->a ÊÇÊôÐÔ $this->a";
}
}
$a = new A(); //ÕâÀïµÄ$a¿É²»ÊÇÀàÖеÄÈκαäÁ¿
$a->printInt(88);
?>

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<?php
class Math
{
//Á½¸öÊýÖµ±È½Ï´óС
public function Max($a, $b) {
return $a > $b ? $a : $b;
}
//Èý¸öÊýÖµ±È½Ï´óС
public function Max3($a, $b, $c) {
$a = $this->Max($a, $b); //µ÷ÓÃÀàÖеÄÆäËü·½·¨
return $this->Max($a, $c);
}
}
$math = new Math();
echo "×î´óÖµÊÇ " . $math->Max3(99, 100, 88);
?>

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<?php
class A
{
private $a = 0;
public function __construct() {
$this->a = $this->a + 1;
}
public function doSomeThing() {
$this->__construct();
return $this->a;
}
}
$a = new A(); // ÕâÀïµÄ$a ¿É²»ÊÇÀàÖеÄÈκÎÒ»¸ö±äÁ¿ÁË
echo "ÏÖÔÚ \$a µÄÖµÊÇ" . $a->doSomeThing();
?>

$this µ½µ×Ö¸µÄʲô£¿
$this ¾ÍÊÇÖ¸µ±Ç°¶ÔÏó£¬ÎÒÃÇÉõÖÁ¿ÉÒÔ·µ»ØÕâ¸ö¶ÔÏóʹÓà $this¡£
<?php
class A
{
public function getASelf() {
return $this;
}
public function __toString() {
return "ÕâÊÇÀàAµÄʵÀý";
}
}
$a = new A(); //´´½¨AµÄʵÀý
$b = $a->getASelf(); //µ÷Ó÷½·¨·µ»Øµ±Ç°ÊµÀý
echo $a; //´òÓ¡¶ÔÏó»áµ÷ÓÃËüµÄ__toString·½·¨
?>

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<?php
class ChineseSpell {
 /**
  * @var array $chineseSpellList Æ´Òô±àÂë¶ÔÓ¦±í
  * @access private
  */
 private $chineseSpellList = array(
    'a'=>-20319,
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php HTTP_RAW_POST_DATA

http://php.net/manual/en/reserved.variables.httprawpostdata.php
http://www.cnblogs.com/mustardpeanut/archive/2009/06/15/1503395.html
http://blog.csdn.net/letianok/archive/2009/02/27/3941731.aspx
http://www.woria.cn/blog/read.php/596.htm ......
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