【发布时间】：2013-12-15 19:52:27
【问题描述】：
我已经用 composer 安装了 knp snappy bundle，并按照https://github.com/KnpLabs/KnpSnappyBundle 上的使用和配置教程进行操作
我已经安装了 wkhtmltopdf-0.9.9-installer.exe 并更改了 config.yml 文件中的默认路径
# knp_snappy Configuration
knp_snappy:
pdf:
enabled: true
binary: C:\Program Files (x86)\wkhtmltopdf
options: []
这里是函数
/**
* @Route("/print", name="invite_print")
* @Method("GET")
*/
public function printAction() {
$entity = new Invite();
$form = $this->createCreateForm($entity);
$html = $this->renderView('PrifProtocoleBundle:Invite:new.html.twig', array(
'entity' => $entity,
'form' => $form->createView()
));
return new Response(
$this->get('knp_snappy.pdf')->getOutputFromHtml($html), 200, array(
'Content-Type' => 'application/pdf',
'Content-Disposition' => 'attachment; filename="file.pdf"',
'charset' => 'UTF-8',
)
);
}
但不幸的是，我有这些错误消息：
错误 1：
ContextErrorException: Warning: json_encode(): Invalid UTF-8 sequence in argument in C:\wamp\www\protocole\app\cache\dev\classes.php line 4592
错误 2：
ContextErrorException: Warning: json_encode(): Invalid UTF-8 sequence in argument in C:\wamp\www\protocole\vendor\monolog\monolog\src\Monolog\Formatter\NormalizerFormatter.php line 132
谁能告诉我如何解决这个问题？谢谢
json.php文件中的json_encode函数（奇怪为空）
/**
* (PHP 5 >= 5.2.0, PECL json >= 1.2.0)<br/>
* Returns the JSON representation of a value
* @link http://php.net/manual/en/function.json-encode.php
* @param mixed $value <p>
* The <i>value</i> being encoded. Can be any type except
* a resource.
* </p>
* <p>
* This function only works with UTF-8 encoded data.
* </p>
* @param int $options [optional] <p>
* Bitmask consisting of <b>JSON_HEX_QUOT</b>,
* <b>JSON_HEX_TAG</b>,
* <b>JSON_HEX_AMP</b>,
* <b>JSON_HEX_APOS</b>,
* <b>JSON_NUMERIC_CHECK</b>,
* <b>JSON_PRETTY_PRINT</b>,
* <b>JSON_UNESCAPED_SLASHES</b>,
* <b>JSON_FORCE_OBJECT</b>,
* <b>JSON_UNESCAPED_UNICODE</b>. The behaviour of these
* constants is described on
* the JSON constants page.
* </p>
* @param int $depth [optional]
* @return string a JSON encoded string on success or <b>FALSE</b> on failure.
*/
function json_encode ($value, $options = 0, $depth = 512) {}
错误 2 的 NormalizerFormatter.php 文件
protected function toJson($data, $ignoreErrors = false)
{
// suppress json_encode errors since it's twitchy with some inputs
if ($ignoreErrors) {
if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
return @json_encode($data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
}
return @json_encode($data);
}
if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
return json_encode($data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
}
return json_encode($data);
}
config.yml 文件
# Doctrine Configuration
doctrine:
dbal:
driver: %database_driver%
host: %database_host%
port: %database_port%
dbname: %database_name%
user: %database_user%
password: %database_password%
charset: UTF8
# if using pdo_sqlite as your database driver, add the path in parameters.yml
# e.g. database_path: %kernel.root_dir%/data/data.db3
# path: %database_path%
orm:
auto_generate_proxy_classes: %kernel.debug%
auto_mapping: true
naming_strategy: doctrine.orm.naming_strategy.underscore
树枝文件
{# app/Resources/views/layout.html.twig #}
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html" charset="utf-8" >
<link href="{{ asset('css/bootstrap.min.css') }}" rel="stylesheet" media="screen">
{% block body %}
{% endblock %}
====================
{# PrifBundle/invite/new.html.twig #}
{% extends 'PrifBundle::layout.html.twig' %}
{% block body %}
<div class="well">
<div class="form-horizontal" role="form">
{{ form_start(form, {'attr': {'novalidate': 'novalidate'}}) }}
{# Les erreurs générales du formulaire. #}
{{ form_errors(form) }}
【问题讨论】：
标签： symfony wkhtmltopdf