donglan9517 2016-12-12 05:37
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PHP致命错误:未捕获错误:找不到类'Symfony \ Component \ Console \ Application'

I am trying to create a simple CLI app with PHP but I keep getting:

PHP Fatal error:  Uncaught Error: Class 'Symfony\Component\Console\Application' not found in /Applications/MAMP/htdocs/newcli/dan.php:6
Stack trace:
#0 {main}
  thrown in /Applications/MAMP/htdocs/newcli/dan.php on line 6

Fatal error: Uncaught Error: Class 'Symfony\Component\Console\Application' not found in /Applications/MAMP/htdocs/newcli/dan.php:6
Stack trace:
#0 {main}
  thrown in /Applications/MAMP/htdocs/newcli/dan.php on line 6

What am I doing wrong? My PHP version: PHP 7.1.0RC6 (cli) (built: Nov 9 2016 04:45:59) ( NTS )

dan.php:

#! usr/bin/env php
<?php use Symfony\Component\Console\Application;

require 'vendor/autoload.php';

$app = new Application('Task App', '1.0');

$app->add(new Acme\ShowCommand());
$app->run();
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1条回答 默认 最新

  • doukuangxiu1621 2016-12-12 11:42
    关注

    The use statement must be placed after the require 'vendor/autoload.php'

    #! usr/bin/env php
    <?php 
    
    require 'vendor/autoload.php';
    
    use Symfony\Component\Console\Application;
    
    $app = new Application('Task App', '1.0');
    
    $app->add(new Acme\ShowCommand());
    $app->run();
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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