欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入 this是指向当前对象的指针[php] view plaincopyprint? class human{ public $name="李四"; public function eat(){ echo $this-name,'在吃饭'; } public function test(){ echo $name,'在吃饭'; } }
欢迎进入Linux社区论坛,与200万技术人员互动交流 >>进入
this是指向当前对象的指针[php] view plaincopyprint?
class human{
public $name="李四";
public function eat(){
echo $this->name,'在吃饭';
}
public function test(){
echo $name,'在吃饭';
}
}
$li=new human();
echo $li->name;//李四
$li->eat();//李四在吃饭。
/*
和java,c++相比
方法体内想访问调用者的属性,必须用$this
如果不加,则理解为方法内部的一个局部变量.
*/
$li->test();//Notice: Undefined variable: name in C:\wamp\www\php\this.php on line 14
/******
从生活中的角度来理解$this
女娲造人时, 造了一个"悔恨"的方法
{
抓[自己]头发
抽 [自己] 脸
}
世界上的人那么多,
悔恨时,抓谁的头发?
抽谁的脸?
张三,李四? 王五? 都不能说明合理的情况
只能理解为"自己"
******/
?>
class human{
public $name="李四";
public function eat(){
echo $this->name,'在吃饭';
}
public function test(){
echo $name,'在吃饭';
}
}
$li=new human();
echo $li->name;//李四
$li->eat();//李四在吃饭。
/*
和java,c++相比
方法体内想访问调用者的属性,必须用$this
如果不加,则理解为方法内部的一个局部变量.
*/
$li->test();//Notice: Undefined variable: name in C:\wamp\www\php\this.php on line 14
/******
从生活中的角度来理解$this
女娲造人时, 造了一个"悔恨"的方法
{
抓[自己]头发
抽 [自己] 脸
}
世界上的人那么多,
悔恨时,抓谁的头发?
抽谁的脸?
张三,李四? 王五? 都不能说明合理的情况
只能理解为"自己"
******/
?>


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

SublimeText3 Linux new version
SublimeText3 Linux latest version
