我有一个在开发模式下运行良好的应用程序，但是当我在生产中运行它时会弹出：
Fatal error: Class 'Twig\Extension\AbstractExtension' not found in C:\Users\wackm\PhpstormProjects\poem\vendor\symfony\symfony\src\Symfony\Bridge\Twig\Extension\LogoutUrlExtension.php on line 23
我猜测这与我的自定义树枝延伸相关：
<?php
// src/AppBundle/Twig/VersionExtension.php
namespace AppBundle\Twig;
use AppBundle\Entity\Version;
use PhpOffice\PhpSpreadsheet\Calculation\DateTime;
/**
* Class VersionExtension - converts versions to readable HTML.
* @package AppBundle\Twig
*/
class VersionExtension extends \Twig_Extension
{
/**
* Defines the function name for use in twig templates.
* @return array
*/
public function getFunctions()
{
return array(
new \Twig_SimpleFunction('version', array($this, 'versionFunction')),
);
}
/**
* Actual function that converts a Version object into a HTML string.
*
* Indent indents the associated entities within each other, but NOT
* the individual items, it does this by incrementing in 0.5 and truncating
* $indent with intval()
* @param array $hydrated_entity
* @param string $title
* @param indent
* @return string
*/
public function versionFunction($hydrated_entity, $title = null, $indent = 0)
{
$result_html = '';
if (!empty($hydrated_entity) and $title != null) {
$result_html .= '<div style="text-indent:' . (intval($indent) * 20) . 'px"><strong>' . $title . '</strong></div>';
}
foreach ($hydrated_entity as $key => $value) {
// Ignore meta attributes.
if (in_array($key, array("ID", "Updated At", "Created At"))) {
continue;
}
if (is_array($value)) {
$result_html .= $this->versionFunction($value, $key, ($indent + 0.5));
} else {
$value = $this->tidyValue($value);
if ($this->startsWith($key, "added_")) {
$result_html .= '<div class="bg-success" style="text-indent:' . (intval($indent) * 20) . 'px">' . explode("_", $key)[1] . ': ' . '<p>' . $value . '</p>' . '</div>';
} else if ($this->startsWith($key, "removed_")) {
$result_html .= '<div class="bg-danger" style="text-indent:' . (intval($indent) * 20) . 'px">' . explode("_", $key)[1] . ': ' . '<p>' . $value . '</p>' . '</div>';
} else {
$result_html .= '<div class="bg-info" style="text-indent:' . (intval($indent) * 20) . 'px">' . $key . ': ' . '<p>' . $value . '</p>' . '</div>';
}
}
}
return $result_html;
}
/**
* Tidies up value for display.
* @param $value
* @return string
*/
private function tidyValue($value)
{
// Convert DateTime to String.
if ($value instanceof \DateTime) {
$value = $value->format('Y-m-d');
} else if (is_bool($value)) {
$value = ($value) ? 'true' : 'false';
} else if (is_string($value)) {
//Remove extra <p> tags if present.
$value = preg_replace('!^<p>(.*?)</p>$!i', '$1', $value);
}
return $value;
}
/**
* Checks whether a string begins with a another string.
* @param $haystack
* @param $needle
* @return bool
*/
private function startsWith($haystack, $needle)
{
$length = strlen($needle);
return (substr($haystack, 0, $length) === $needle);
}
}
扩展程序是否应扩展LogoutUrlExtension.php以外的其他内容？这似乎是一个奇怪的文件，它试图扩展。 PHPStorm警告我\Twig_Extension有多个定义，所以我认为这是相关的。
我正在使用Twig 1.8。
任何人都可以提供任何见解吗？
编辑：
Composer.json：
{
"name": "symfony/framework-standard-edition",
"license": "MIT",
"type": "project",
"description": "The \"Symfony Standard Edition\" distribution",
"minimum-stability": "dev",
"prefer-stable": true,
"autoload": {
"psr-4": {
"": "src/"
},
"classmap": [
"app/AppKernel.php",
"app/AppCache.php"
]
},
"autoload-dev": {
"psr-4": {
"Tests\\": "tests/"
}
},
"require": {
"php": "7.0.0",
"symfony/symfony": "3.2.*",
"doctrine/orm": "^2.5",
"doctrine/doctrine-bundle": "^1.6",
"doctrine/doctrine-cache-bundle": "^1.2",
"symfony/swiftmailer-bundle": "^2.3",
"symfony/monolog-bundle": "^2.8",
"symfony/polyfill-apcu": "^1.0",
"sensio/distribution-bundle": "^5.0",
"sensio/framework-extra-bundle": "^3.0.2",
"incenteev/composer-parameter-handler": "^2.0",
"doctrine/doctrine-fixtures-bundle": "2.3.0",
"symfony/assetic-bundle": "v2.8.0",
"twig/twig": "1.*",
"components/jquery": "3.1.1",
"friendsofsymfony/user-bundle": "~2.0.0-beta2",
"fr3d/ldap-bundle": "3.0.*@dev",
"doctrine/doctrine-migrations-bundle": "^1.0",
"symfony/console": "^3.2",
"phpoffice/phpexcel": "^1.8",
"waldo/datatable-bundle": "^4.0"
},
"require-dev": {
"sensio/generator-bundle": "^3.0",
"symfony/phpunit-bridge": "^3.0",
"liip/functional-test-bundle": "^1.6",
"phpunit/phpunit": "5.7"
},
"scripts": {
"symfony-scripts": [
"Incenteev\\ParameterHandler\\ScriptHandler::buildParameters",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::prepareDeploymentTarget"
],
"post-install-cmd": [
"@symfony-scripts"
],
"post-update-cmd": [
"@symfony-scripts"
]
},
"config": {
"platform": {
"php": "7.0.0"
}
},
"extra": {
"symfony-app-dir": "app",
"symfony-bin-dir": "bin",
"symfony-var-dir": "var",
"symfony-web-dir": "web",
"symfony-tests-dir": "tests",
"symfony-assets-install": "relative",
"incenteev-parameters": {
"file": "app/config/parameters.yml"
},
"branch-alias": {
"dev-master": "3.1-dev"
}
}
}
答案 0 :(得分：1)
Symfony\Bridge\Twig\Extension\LogoutUrlExtension延伸Twig\Extension\AbstractExtension\AbstractExtension（这对您来说似乎不见了。）
该文件是twig/extensions包的一部分，因此composer require twig/extensions应该可以解决问题。
Symfony Twig Bridge不需要twig/extensions为什么我不知道。 （packagist.org上的requires部分仅提及twig/twig）