php静态变量与方法与phar的使用

本节用类与静态变量改造之前的例子:php根据命令行参数生成配置文件

ghostinit.php:

<?php

    class ghostinit{
        static $version = 'ghost version is 1.1';
        static $projName = '';
        static $author = 'ghostwu';
        static function init(){
            echo "pls input project name?" . PHP_EOL;
            self::$projName = fgets( STDIN );

            echo "pls input author?" . PHP_EOL;
            self::$author = fgets( STDIN );

            echo "您输入的项目信息如下:" . PHP_EOL;
            echo self::$projName . PHP_EOL;
            echo self::$author . PHP_EOL;
        }    

        static function make(){
            $pchar=new Phar("ghost.phar");
            $pchar->buildFromDirectory(dirname(__FILE__));
            $pchar->setStub($pchar->createDefaultStub('ghost'));
            $pchar->compressFiles(Phar::GZ);
        }
    }

?>

ghost:

#!/usr/bin/php
<?php
require "ghostinit.php";

$result = '';

if( $argc >= 2 ) {
    $argv[1] == '-v' && $result = ghostinit::$version;
    $argv[1] == 'make' && ghostinit::make();
    $argv[1] == 'init' && ghostinit::init();
}

echo $result . PHP_EOL;

执行结果：

ghostwu@dev:~/php/php1/3$ ls
done  ghost  ghostinit.php
ghostwu@dev:~/php/php1/3$ ./ghost init
pls input project name?
test
pls input author?
ghostwu
您输入的项目信息如下:
test

ghostwu

ghostwu@dev:~/php/php1/3$ ls
done  ghost  ghostinit.php
ghostwu@dev:~/php/php1/3$ ./ghost make

ghostwu@dev:~/php/php1/3$ ls
done  ghost  ghostinit.php  ghost.phar
ghostwu@dev:~/php/php1/3$ ./ghost -v
ghost version is 1.1
ghostwu@dev:~/php/php1/3$ 

callstatic继续改造：

ghostinit.php:

<?php

    class ghostinit{
        static $v = 'ghost version is 1.1';
        static $projName = '';
        static $author = 'ghostwu';
        static function init(){
            echo "pls input project name?" . PHP_EOL;
            self::$projName = fgets( STDIN );

            echo "pls input author?" . PHP_EOL;
            self::$author = fgets( STDIN );

            echo "您输入的项目信息如下:" . PHP_EOL;
            echo self::$projName . PHP_EOL;
            echo self::$author . PHP_EOL;
        }    

        static function make(){
            $pchar=new Phar("ghost.phar");
            $pchar->buildFromDirectory(dirname(__FILE__));
            $pchar->setStub($pchar->createDefaultStub('ghost'));
            $pchar->compressFiles(Phar::GZ);
        }

        static function __callstatic( $m, $args ){
            echo 'error function';
        }

    }

?>

ghost:

#!/usr/bin/php
<?php
require "ghostinit.php";

$result = '';

if( $argc >= 2 ) {
    $p = $argv[1];
    if( substr( $p, 0, 1 ) == '-' ) {
        $p = substr( $p, 1 );
        $result = isset( ghostinit::$$p ) ? ghostinit::$$p : 'error';
    }else {
        $result = ghostinit::$p();
    }
}

echo $result . PHP_EOL;

把配置独立成一个类

ghostconfig.php:   把这两个属性注释，也可以正常运行, php允许动态增加成员变量(类的属性)

<?php
class ghostconfig{
    public $projName;
    public $author;

}

ghostinit.php

<?php
    require( "ghostconfig.php" );    

    class ghostinit{
        static $v = 'ghost version is 1.1';

        static function init(){
            $conf = new ghostconfig();
            echo "pls input project name?" . PHP_EOL;
            $conf->projName = fgets( STDIN );

            echo "pls input author?" . PHP_EOL;
            $conf->author = fgets( STDIN );

            echo "您输入的项目信息如下:" . PHP_EOL;

            echo json_encode( $conf );
        }    

        static function make(){
            $pchar=new Phar("ghost.phar");
            $pchar->buildFromDirectory(dirname(__FILE__));
            $pchar->setStub($pchar->createDefaultStub('ghost'));
            $pchar->compressFiles(Phar::GZ);
        }

        static function __callstatic( $m, $args ){
            echo 'error function';
        }

    }

?>

利用顶级类stdClass代替config类，这样就减少了一个类，这个config类目前只用到了一次，完全可以用stdClass再次简化

<?php

    class ghostinit{
        static $v = 'ghost version is 1.1';

        static function init(){
            $conf = new stdClass();
            echo "pls input project name?" . PHP_EOL;
            $conf->projName = fgets( STDIN );

            echo "pls input author?" . PHP_EOL;
            $conf->author = fgets( STDIN );

            echo "您输入的项目信息如下:" . PHP_EOL;

            echo json_encode( $conf );
        }    

        static function make(){
            $pchar=new Phar("ghost.phar");
            $pchar->buildFromDirectory(dirname(__FILE__));
            $pchar->setStub($pchar->createDefaultStub('ghost'));
            $pchar->compressFiles(Phar::GZ);
        }

        static function __callstatic( $m, $args ){
            echo 'error function';
        }

    }

?>

生成配置信息，再次简化，变成公共模块：

static function init(){
            echo "pls input project name?" . PHP_EOL;
            $projName = fgets( STDIN );

            echo "pls input author?" . PHP_EOL;
            $author = fgets( STDIN );

            echo "您输入的项目信息如下:" . PHP_EOL;

            echo json_encode( self::getConfig( [ 'proj_name' => $projName, 'author' => $author ] ) );
        }    

        static function getConfig( $conf ){
            $std = new stdClass();
            foreach( $conf as $k => $v ){
                $std->$k = $v;
            }
            return $std;
        }