致命错误：未捕获错误：在phar中调用未定义的函数Symfony \\ Polyfill \\ Mbstring \\ iconv（）：

Question

我使用Ubuntu 16.04 LTS

PHP 7.0.13 NetBean

我尝试在NetBeans环境中运行与作曲家链接的一些操作，我有这些日志

"/usr/local/ampps/php-7.0/bin/php" "/home/arfa/www/composer.phar" "--ansi" "--no-interaction" "self-update"


Fatal error: Uncaught Error: Call to undefined function Symfony\Polyfill\Mbstring\iconv() in phar:///home/arfa/www/composer.phar/vendor/symfony/polyfill-mbstring/Mbstring.php:520
Stack trace:
#0 phar:///home/arfa/www/composer.phar/vendor/symfony/polyfill-mbstring/bootstrap.php(46): Symfony\Polyfill\Mbstring\Mbstring::mb_strwidth('  [Composer\\Exc...', 'ASCII')
#1 phar:///home/arfa/www/composer.phar/vendor/symfony/console/Application.php(1106): mb_strwidth('  [Composer\\Exc...', 'ASCII')
#2 phar:///home/arfa/www/composer.phar/vendor/symfony/console/Application.php(650): Symfony\Component\Console\Application->stringWidth('  [Composer\\Exc...')
#3 phar:///home/arfa/www/composer.phar/vendor/symfony/console/Application.php(131): Symfony\Component\Console\Application->renderException(Object(Composer\Exception\NoSslException), Object(Symfony\Component\Console\Output\StreamOutput))
#4 phar:///home/arfa/www/composer.phar/src/Composer/Console/Application.php(100): Symfony\Component\Console\Application->run(Object(Symfony\Component\ in phar:///home/arfa/www/composer.phar/vendor/symfony/polyfill-mbstring/Mbstring.php on line 520
Done.

该问题与我的项目，symfony，设置相关联。

Answer 1

你有启用iconv扩展名吗？

请发布此命令的回复：

php -i | grep -i "iconv support"

或者，在php.ini文件中搜索“extension = iconv.so”，如果已注释掉，则取消注释并确保重新启动Apache。

如果失败，请尝试安装composer包：

composer require symfony/polyfill-iconv