該系列我只寫我的理解，非官方解釋，如不夠?qū)I(yè)請見諒

PHAR: 即 PHP Archive，將這個應(yīng)用程序打包成單個文件，以利于分發(fā)和安裝的機(jī)制，似乎是從JAVA的JAR借鑒來的東西

開啟phar功能

配置php.ini

[Phar]
; http://php.net/phar.readonly
phar.readonly = Off//默認(rèn)是On

基本語法

1. 打包

new Phar(包名)
$phar->buildFromDirectory(打包目錄, 正則篩選);
$phar->compressFiles( Phar::GZ |PHAR::BZ2);//壓縮方式
$phar->setStub( $phar->createDefaultStub(入口文件) );

2. 引用

require_once 'phar:://包名/文件';

Example

• 目錄結(jié)構(gòu)

• 代碼

//user.class.php
<?php
 
class user {
    private $name="anonymous";
    private $email="anonymous@nonexists.com";
 
    public function set_email($email) {
        $this->email=$email;
    }
    public function set_name($name) {
        $this->name=$name;
    }
    public function introduce() {
        echo "My name is $this->name and my email address is $this->email.\n";
    }
 
}

//user.func.php
<?php
 
require_once "user.class.php";
 
function make_user($name,$email) {
    $u=new user();
    $u->set_name($name);
    $u->set_email($email);
    return $u;
}
 
function dump_user($u) {
    $u->introduce();
}

//test.php
<?php
require_once "user.class.php";
 
$u=new user();
$u->set_name("laomeng");
$u->set_email("laomeng@163.com");
$u->introduce();

通過make_phar.php打包成phar
命令行執(zhí)行php make_phar.php在目錄下就會生成user.phar

//make_phar.php
<?php
$phar = new Phar('user.phar');#定義壓縮包名
//指定壓縮的目錄，第二個參數(shù)可通過正則來制定壓縮文件的擴(kuò)展名
$phar->buildFromDirectory(dirname(__FILE__) . '/user', '/\.php$/');
$phar->setStub($phar->createDefaultStub('test.php'));//設(shè)置啟動加載的文件
$phar->compressFiles(Phar::GZ);#表示使用gzip來壓縮此文件。也支持bz2壓縮。參數(shù)修改為 PHAR::BZ2即可

測試代碼

//test_phar.php
<?php
require_once "user.phar";//加載壓縮包
#My name is laomeng and my email address is laomeng@163.com.來自入口test.php
require_once "phar://user.phar/user.class.php";//加載壓縮包內(nèi)php文件

$u=new user();
$u->set_name("mengguang");
$u->set_email("mengguang@gmail.com");
$u->introduce();#My name is mengguang and my email address is mengguang@gmail.com.
 
require_once "phar://user.phar/user.func.php";
 
$u=make_user("xiaomeng","xiaomeng@163.com");
dump_user($u);#My name is xiaomeng and my email address is xiaomeng@163.com.

命令行執(zhí)行php test_phar.php
輸出

My name is laomeng and my email address is laomeng@163.com.
My name is mengguang and my email address is mengguang@gmail.com.
My name is xiaomeng and my email address is xiaomeng@163.com.

如此就介紹完了phar的簡單用法，個人感覺相對要比打jar包要復(fù)雜，不過引用要比jar包簡單的多，可能功能上有些缺失，不過掌握以上的功能已經(jīng)夠用了