如何解决错误QXcbConnection:使用PHP的phantomJs使用exec函数时无法连接显示
作者:互联网
我正在开发一个项目,我想在一起使用PHP和Phantomjs,我已经完成了我的phantomJs脚本并尝试使用php exec函数运行它.但该函数返回一个错误列表数组.
下面我正在编写我的phantomjs和php代码
导游:/var/www/html/phantom/index.js
var page = require('webpage').create();
var fs = require('fs');
page.open('http://insttaorder.com/', function(status) {
// Get all links to CSS and JS on the page
var links = page.evaluate(function() {
var urls = [];
$("[rel=stylesheet]").each(function(i, css) {
urls.push(css.href);
});
$("script").each(function(i, js) {
if (js.src) {
urls.push(js.src);
}
});
return urls;
});
// Save all links to a file
var url_file = "list.txt";
fs.write(url_file, links.join("\n"), 'w');
// Launch wget program to download all files from the list.txt to current
// folder
require("child_process").execFile("wget", [ "-i", url_file ], null,
function(err, stdout, stderr) {
console.log("execFileSTDOUT:", stdout);
console.log("execFileSTDERR:", stderr);
// After wget finished exit PhantomJS
phantom.exit();
});
});
导游:/var/www/html/phantom/index.php
exec('/usr/bin/phantomjs index.js 2>&1',$output);
echo '<pre>';
print_r($output);
die;
也尝试过
exec('/usr/bin/phantomjs /var/www/html/phantom/index.js 2>&1',$output);
echo '<pre>';
print_r($output);
die;
运行后,我得到低于错误
Array
(
[0] => QXcbConnection: Could not connect to display
[1] => PhantomJS has crashed. Please read the bug reporting guide at
[2] => and file a bug report.
[3] => Aborted (core dumped)
)
但是,如果我从终端运行index.php文件,如下所示:
user2@user2-H81M-S:/var/www/html/phantom$php index.php
然后它工作正常.我不知道如何解决它.请帮忙.
我正在使用以下版本
系统版本:Ubuntu 16.04.2 LTS
PHP版本:5.6
幻影版:2.1.1
解决方法:
您是否尝试在服务器上设置环境变量?或者在调用phantomjs之前添加它?
我遇到了同样的情况并找到了一些解决方案:
一个.将变量QT_QPA_PLATFORM定义或设置为屏幕外:
QT_QPA_PLATFORM=offscreen /usr/bin/phantomjs index.js
湾或者将此行添加到.bashrc文件中(将其放在最后):
export QT_QPA_PLATFORM=offscreen
C.或安装包xvfb并在phantomjs之前调用xvfb-run:
xvfb-run /usr/bin/phantomjs index.js
d.或使用参数平台:
/usr/bin/phantomjs -platform offscreen index.js
也许您不希望/不能在您的服务器上进行修改,在这种情况下,您可能会尝试从official website下载静态二进制文件:
/path/to/the/bin/folder/phantomjs index.js
和/或在.bash_aliases文件中创建一个别名,如下所示:
alias phantomjs=/path/to/the/bin/folder/phantomjs
make sure that
phantomjs
is not installed already on the system if you decide to use the alias.if the file
.bash_aliases
not exist already, feel free to create it or add thealias
line at the end of the.bashrc
file
一些参考:
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=817277
> https://github.com/ariya/phantomjs/issues/14376
> https://bugs.launchpad.net/ubuntu/+source/phantomjs/+bug/1586134
标签:php,linux,phantomjs,apache,ubuntu-16-04 来源: https://codeday.me/bug/20190731/1587789.html