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Zend Studio13.5创建Zend Framework 2.4.9时遇到的问题以及解决方案

在用Zend Studio13.5创建Zend Framework 2.4.9时遇到的问题以及解决方案:

出现的错误:

Fatal error: Uncaught exception ‘RuntimeException’ with message ‘Unable to load ZF2. Run

php composer.phar install

or define a ZF2_PATH environment variable.’ in D:\wampserver\wamp\www\Zend\init_autoloader.php on line 54

RuntimeException: Unable to load ZF2. Run

php composer.phar install

or define a ZF2_PATH environment variable. in D:\wampserver\wamp\www\Zend\init_autoloader.php on line 54

Zend Studio13.5创建Zend Framework 2.4.9时遇到的问题以及解决方案

意思就是找不到ZF2这个框架,看一下

init_autoloader.php

文件,没有兴趣看原理的可以直接看后面的解决方案

<?php
/**
 * Zend Framework (http://framework.zend.com/)
 *
 * @link      http://github.com/zendframework/ZendSkeletonApplication for the canonical source repository
 * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
 * @license   http://framework.zend.com/license/new-bsd New BSD License
 */

/**
 * This autoloading setup is really more complicated than it needs to be for most
 * applications. The added complexity is simply to reduce the time it takes for
 * new developers to be productive with a fresh skeleton. It allows autoloading
 * to be correctly configured, regardless of the installation method and keeps
 * the use of composer completely optional. This setup should work fine for
 * most users, however, feel free to configure autoloading however you'd like.
 */

// Composer autoloading
if (file_exists('vendor/autoload.php')) {
    $loader = include 'vendor/autoload.php';
}

if (class_exists('Zend\Loader\AutoloaderFactory')) {
    return;
}

$zf2Path = false;

if (is_dir('vendor/ZF2/library')) {
    $zf2Path = 'vendor/ZF2/library';
} elseif (getenv('ZF2_PATH')) {      // Support for ZF2_PATH environment variable or git submodule
    $zf2Path = getenv('ZF2_PATH');
} elseif (get_cfg_var('zf2_path')) { // Support for zf2_path directive value
    $zf2Path = get_cfg_var('zf2_path');
}

if ($zf2Path) {
    if (isset($loader)) {
        $loader->add('Zend', $zf2Path);
        $loader->add('ZendXml', $zf2Path);
        // include $zf2Path . '/Zend/Loader/AutoloaderFactory.php';
    } else {
        include $zf2Path . '/Zend/Loader/AutoloaderFactory.php';
        Zend\Loader\AutoloaderFactory::factory(array(
            'Zend\Loader\StandardAutoloader' => array(
                'autoregister_zf' => true
            )
        ));
    }
}

if (!class_exists('Zend\Loader\AutoloaderFactory')) {
    throw new RuntimeException('Unable to load ZF2. Run `php composer.phar install` or define a ZF2_PATH environment variable.');
}
           

可以从这里下载Zend Framework包,看一下下面的解压目录,

Zend Studio13.5创建Zend Framework 2.4.9时遇到的问题以及解决方案

其实主要加载的是

Zend

ZendXml

这两个目录,简单说一下这个自动加载文件是怎样找这两个目录的

1、先尝试用Composer这个管理工具加载

具体文件在

vendor/autoload.php

vendor/composer/autoload_real.php

这两个文件中,前一个文件调用后一个文件执行库查找,后一个文件在

vendor/composer/autoload_namespaces.php

vendor/composer/autoload_psr4.php

vendor/composer/autoload_classmap.php

查找需要的配置文件,而后两个文件中放的就是

Zend

ZendXml

的工作路径

<?php

// autoload_psr4.php @generated by Composer

$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);

return array(
    'Zend\\' => array($vendorDir . '/zendframework/zendframework/library/Zend'),
);

           
<?php

// autoload_namespaces.php @generated by Composer

$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);

return array(
    'ZendXml' => array($vendorDir . '/zendframework/zendxml/library'),
);

           

然后你会发现这两个路径下啥东西也没有,所以你可以创建

Zend

ZendXml

两个路径,把相应的包导进去,一定要在

Zend Studio

就是在

/zendframework/zendxml/library

上右键 -> 新建(两个)文件夹 -> 导入(import),如果你在项目目录下创建,再怎么刷新也找不到创建的目录,感觉很不爽啊

2、用

getenv('ZF2_PATH')

加载

这个是要在

Apache

http.conf

文件夹配置的。比如说我的

wamp

的配置文件目录就是

D:\wampserver\wamp\bin\apache\apache2.4.18\conf\http.conf

,在后面加上下面这行代码,后面的目录替换成你自己的

library

,重启服务

SetEnv ZF2_PATH "E:\Zend\library"
           

3、用

get_cfg_var('zf2_path')

加载

这个配置文件是

php.ini

,我的目录是

D:\wampserver\wamp\bin\apache\apache2.4.18\bin\php.ini

,加上下面一句,重启服务

zf2_path = "E:\Zend\library"
           

对于后面两个,还要改一下

init_autoloader.php

文件:

if ($zf2Path) {
    if (isset($loader)) {
        $loader->add('Zend', $zf2Path);
        $loader->add('ZendXml', $zf2Path);
        include $zf2Path . '/Zend/Loader/AutoloaderFactory.php'; // add this
    } else {
        include $zf2Path . '/Zend/Loader/AutoloaderFactory.php';
        Zend\Loader\AutoloaderFactory::factory(array(
            'Zend\Loader\StandardAutoloader' => array(
                'autoregister_zf' => true
            )
        ));
    }
}
           

即使你后来删除了环境变量还是会存在,如果不想用了,就设置成空,或者到php 手册中寻找方案。

解决方案

1、在

/zendframework/zendxml/library

下右键创建两个目录:

Zend

ZendXml

后,再把下载好的库文件

ZendFramework-2.4.9\library

导入,最后

/zendframework/zendxml/library

这个目录下大概是这个样子:

Zend Studio13.5创建Zend Framework 2.4.9时遇到的问题以及解决方案

2、在

Apache

http.conf

文件(参考路径:

D:\wampserver\wamp\bin\apache\apache2.4.18\conf\http.conf

)中添加下面这行代码

SetEnv ZF2_PATH "E:\Zend\library"
           

重启服务,修改

init_autoloader.php

文件

if ($zf2Path) {
    if (isset($loader)) {
        $loader->add('Zend', $zf2Path);
        $loader->add('ZendXml', $zf2Path);
        include $zf2Path . '/Zend/Loader/AutoloaderFactory.php'; // add this
    } else {
        include $zf2Path . '/Zend/Loader/AutoloaderFactory.php';
        Zend\Loader\AutoloaderFactory::factory(array(
            'Zend\Loader\StandardAutoloader' => array(
                'autoregister_zf' => true
            )
        ));
    }
}
           

3、在

php

php.ini

文件(参考路径:

D:\wampserver\wamp\bin\apache\apache2.4.18\bin\php.ini

)中添加下面这行代码

zf2_path = "E:\Zend\library"
           

重启服务,修改

init_autoloader.php

文件

if ($zf2Path) {
    if (isset($loader)) {
        $loader->add('Zend', $zf2Path);
        $loader->add('ZendXml', $zf2Path);
        include $zf2Path . '/Zend/Loader/AutoloaderFactory.php'; // add this
    } else {
        include $zf2Path . '/Zend/Loader/AutoloaderFactory.php';
        Zend\Loader\AutoloaderFactory::factory(array(
            'Zend\Loader\StandardAutoloader' => array(
                'autoregister_zf' => true
            )
        ));
    }
}