I'm trying to add debugging to an old project that uses exec() to start a new session asynchronously from within another PHP script:
exec("php /var/www/html/validata/index.php",$result)
The normal PHP script is fully debugable with Xdebug but the script started with the exec command isn't because it can't map from file:///var/www/html/index.php to a local file location since it's started within CLI shell. The session started this way does trigger the debugger but can't find the file locally:
Cannot find file '/var/www/html/validata/index.php' locally.
To fix it set server name by environment variable PHP_IDE_CONFIG and restart debug session.
I've followed the instructions to add the PHP_IDE_CONFIG to the env. I've also added this to the server with 127.0.0.1 replaced with the desktop PC IP address (server is running in a docker container):
export XDEBUG_CONFIG="remote_enable=1 remote_mode=req remote_port=9000 remote_host=127.0.0.1 remote_connect_back=0"
Any pointers are greatly appreciated!
UPDATE
Solution:
Use the cli interpreter set to the docker container (in settings > Languages & Frameworks > PHP > CLI interpreter, add new, select docker and point it to the php binary) so that a debug session can be started with a new debugging configuration. I've copied the arguments from the exec command into the new configuration and it can now fully debug the script. I have to prepare a database table to make it fully testable but this is a working solution for me.
Thanks for all the replies!
You can solve the issue about the wrong php.ini file being loaded by specifying it in the command line:
exec("php -c " . escapeshellarg(php_ini_loaded_file()) .
" /var/www/html/validata/index.php",$result);
Though I doubt that would make much of a difference as far as xdebug is concerned.
I think a better solution would be to just require the file, which would cause xdebug to not become lost when you fork a new process.
require_once "/var/www/html/validata/index.php";
I've made a mistake how to refer to the server in PHP_IDE_CONFIG:
export PHP_IDE_CONFIG="serverName=SomeName"
should be run in the container where php runs, and SomeName should exactly match what is in PHPStorm/IntelliJ Settings > Languages & Frameworks > php > Servers > Name (not host). It's not a fqdn, just whatever is in the name field.
Related
I'm yet a newbie to PHP development, so far I used NetBeans for the job. Unfortunately NetBeans is not the best IDE, and it is unreasonably slow on my Mac.
I'd like to use Eclipse PDT for PHP, as I know and like Eclipse a lot better (I'm coming from Java).
But I cannot set up a server in Eclipse... All docs and topics just showed ppl saving files in the htdocs folder of an external server (such as MAMP or XAMPP). As I don't need a database, I just want to use PHP's built-in server instead of installing and running a heawyweight app in vain.
I'd like to reproduce the only really good thing in NetBeans: I just click on the Run button, and I see the result in the Browser immediately.
How do you set that up?
Even if I am a bit late to help you, I want to write down my solution, cause I've faced the same problem today.
I think the only chance is to start the php built-in webserver manually. Open a terminal in the desired root directory and start the webserver with
php -S localhost:8000
Then you can add a new server with Base URL: http://localhost:8000 and the choosen document root and you'll have the same functionality like in Netbeans.
Put together this hackety-hack-hack to make this work (even works with xdebug remote debugging if you set it up!!!).
UPDATE: one caveat with this solution is when you terminate the running CLI in Eclipse, it's terminating the wrapper script, not the php server directly. I've added some trapping and forawding of signals to child (php server) process. Works in OSX.
Overview:
I'm running Eclipse Neon
Need a router file in document root you wish to serve from (see this: http://php.net/manual/en/features.commandline.webserver.php)
Create a wrapper bash script to call PHP in server mode and pass in details
Set script to have executable permissions
Add this bash script as a PHP executable
For the project, create a run configuration as PHP CLI, using this new executable, passing the router file in.
Here's the bash script php5.6-server:
#!/bin/bash
_sigterm() {
echo "Caught SIGTERM signal!"
kill -2 "$child"
}
_sigint() {
echo "Caught SIGINT signal!"
kill -14 "$child"
}
if [ $1 = "-v" ]; then
#This is needed for when eclipse trys to detect php version
/path/to/php -v
else
trap _sigterm SIGTERM
trap _sigint SIGINT
# This is why your router file needs to be in the doc root
ROUTER=${#: -1}
DIR=$(dirname $ROUTER)
/path/to/php -S localhost:8000 -t $DIR $ROUTER
child=$!
wait "$child"
fi
Here's a simple router.php just to get it working:
<?php
// router.php
if (preg_match('/\.(?:png|jpg|jpeg|gif)$/', $_SERVER["REQUEST_URI"])) {
return false; // serve the requested resource as-is.
} else {
echo "<p>Welcome to PHP</p>";
}
Now in Eclipse go to Eclipse->Preferences->PHP->PHP Executables and add a new server:
And that should be it. Now create a PHP CLI Run configurations using the wrapper executable as 'Alternate PHP' and for the php file specify the route file:
Then Run as CLI!!! A PHP server should now be listening on port 8000 on your localhost. I suspect this method may also work for HHVM's Proxygen server.
Does anybody know how to debug CLI PHP scripts from the CLI?!? I don't want to debug a PHP web page - I don't have a PHP web page. I don't want to debug a remote script either - I'm running/debugging right here on this system. I don't want to (at this time) try to get some IDE (Eclipse, PhpStorm or whatever) to debug a CLI PHP rather I just want to debug some PHP CLI script at the Linux command line itself. In Perl this would be simply perl -d <script.pl> <options>. Debugging a script, to me, is not figuring out compile errors or other simple things. To me it's setting break points, running code, examine the contents of variables and being able to arbitrarily execute or eval ('<php code>') at the debugger.
Sure later I'd like to configure this into my IDE of choice (at this time this is Eclipse) but I have not managed to get that working. Debugging from the CLI a PHP CLI script would be a good start for me.
Thanks.
I don't know why I'm limited to a character count when posting a comment. Perhaps I can add more text here.
Here's what I have tried in order to use xdebug and/or Zend debugger with Eclipse:
Base Eclipse version Mars.1 Release 4.5.
Eclipse PDT UI Plugin version 3.7.0.2015112
Tried installing xdebug using pecl install xdebug. Says I need to add "zend_extension=xdebug.so" to php.ini. Really? Which php.ini? I have several:
Andromeda:sudo find / -xdev -name php.ini
/etc/php5/cli/php.ini
/etc/php5/apache2/php.in
/opt/eclipse/plugins/org.zend.php.debug.debugger.linux.x86_64_5.3.18.v20110322/resources/php53/php.ini
/opt/eclipse/plugins/org.zend.php.debug.debugger.linux.x86_64_5.3.18.v20110322/resources/php5/php.ini
/opt/eclipse/plugins/com.zend.php.debug.debugger.php56.linux.x86_64_13.0.1.v20151112-2045/resources/php56/php.ini
Andromeda:
I put the zend_extension thing in both /etc/php5/cli/php.ini and /etc/php5/apache2/php.ini. Made a phpinfo.php page and I see Xdebug in there (yea!). Configure a Debug Configuration in Eclipse to use xdebug and try to debug:
Launching renameUser has encountered a problem. An internal error occurred during "Launching renameUser" java.lang.NullPointerException.
Oh goodie...
I had also installed the Zend Debugger and added the following to those same two php.ini files:
zend_extension=/usr/lib/php5/20121212/ZendDebugger.so
zend_debugger.allow_hosts=127.0.0.1/32, 192.168.0.0/16
zend_debugger.expose_remotely=always
Changed debug configuration to use Zend Debugger and attempted to debug. Received:
Error launching 'renameUser' The debug session could not be started. Please make sure that the debugger is properly configured as a php.ini directive.
Restarted Eclipse and now the debugger attempts to run but simply terminates with a 255 exit value attempting to run /opt/eclipse/plugins/org.zend.php.debug.debugger.linux.x86_64_5.3.18.v20110322/resources/php5/php-cgi. Why it's runnign php-cgi is beyond me. I said this was a CLI not a CGI. In any event I get the following when trying to run this from the command line:
Andromeda:/opt/eclipse/plugins/org.zend.php.debug.debugger.linux.x86_64_5.3.18.v20110322/resources/php5/php-cgi
/opt/eclipse/plugins/org.zend.php.debug.debugger.linux.x86_64_5.3.18.v20110322/resources/php5/php-cgi: error while loading shared libraries: libiconv.so.2: cannot open shared object file: No such file or directory
Found a libiconv.so.2 in /opt/eclipse/plugins/org.zend.php.debug.debugger.linux.x86_64_5.3.18.v20110322/resources/lib and set LD_LIBRARY_PATH to include that but this just fails to launch the debugger at all stating to make sure that the debugger is properly configured as a php.ini directive... UGH!
Other odd stuff:
When Eclipse starts up it fails to open my RSE based project thus displaying edit buffers from the last run as empty
Eclipse will no longer exit! Select File: Exit. Nothing happens. Click on the X in the title bar - nothing happens. Now I have to kill it to close it!
When debugging on the command line you need to tell PHP you want to debug also
http://xdebug.org/docs/remote
says
export XDEBUG_CONFIG="idekey=session_name"
php myscript.php
assuming xdebug is enabled (it doesnt matter which .ini file its in, but there is a standard place per OS for this, usually in a conf.d folder called xdebug.ini which is auto included)
This allows you to debug a cmdline script.
Personally I use Vim with Vdebug extention (xdebug for vim) to debug and nothing other than a command line is needed
What worked for me was using dephpugger. I found the steps to get CLI debugging working here:
https://hackernoon.com/how-debug-php-applications-with-dephpugger-98cc234d917c
I had previously installed xdebug and tried out exussum's answer.
The steps I followed are included here for completeness.
Install dephpugger:
composer global require “tacnoman/dephpugger”:”dev-master”
Put dephpugger on the path:
export PATH=$PATH:$HOME/.composer/vendor/bin
make sure to include in the php file at the breakpoint:
xdebug_break();
open up 2 terminal instances. In one run:
dephpugger debug
In the other run
dephpugger cli /path/file.php
replacing /path/file.php with the path to your file. if you need command line arguments to the php script put the path and arguments in quotes. It still seems a little hacky. I think the real trick is to write in a language that has a better debugger built in.
exussums answer works for me.
In addition I have the following in /etc/php/7.0/cli/conf.d/20-xdebug.ini
zend_extension=xdebug.so
xdebug.remote_host=127.0.0.1
xdebug.remote_port=9000
xdebug.remote_handler=dbgp
xdebug.remote_enable=true
#xdebug.remote_enable=false
And I had to do this: https://github.com/vim-vdebug/vdebug/issues/363
Being able to set break points in a PHP script requires some kind of debugger extension being loaded, either XDebug or Zend Debugger.
And then you need some kind of interface to this debugger to make your wishes about break points known. I am unfamiliar with the Perl debugging, but I haven't heard about any PHP CLI based debugging - it is always taking place in an IDE that is able to handle the debugging protocol of one of the extensions.
Of course there is the good old var_dump();die('hi'); debugging, but this does not include continuing code execution after the script ended. ;)
I've installed Apache 2.4 with PHP 5.4 on Windows Server 2008 following instructions from this manual:
Apache installing manual.
Apache runs as a service now.
My application requires a php websocket script to run in the background. I'm running it manually with:
php myscript.php
The question is: Is there a way to start a background script automatically on system(apache) restart?
I found the following topic, but I didn't know where I could find an apache startup script for Windows.
Any help will be much appriciated.
I come up with a solution :)
Create an environment variable pointing to your Apache directory
APACHE_HOME = C:/PATH/TO_APACHE
Rename %APACHE_HOME%\bin\httpd.exe to %APACHE_HOME%\bin\httpdVendor.exe
Create a batch file and put the following code :
php myscript.php
%APACHE_HOME%\bin\httpdVendor.exe -k runservice
exit 0
Download/Install the free software BatToExeConverter (next, next, ...)
Open the installed converter and open your freshly created batch file
Click on the button Build EXE (let the default configuration)
Save the file : %APACHE_HOME%\bin\httpd.exe
Start your Apache Server
Tested on : Windows 7, Apache 2.4, Advanced Bat to Exe Converter 2.92
Use built in Windows Task Scheduler which triggers .bat script, which calls curl with defined url.
Download curl from http://curl.haxx.se/download.html and extract curl.exe on any directory, but we will use c:\backgroundtasks
Adjust script below to your needs:
cd c:\
cd c:\backgroundtasks
curl http://localhost/path/to/script.php
exit
Configure Task Scheduler to run as basic task:
General tab - as system account (to run when you are not logged in server)
Triggers tab - adjust frequency
Settings tab - at bottom set If the task is already running... to Stop the existing instance
The best method here would be to use Windows services dependencies.
Make a php-websocket-server.cmd file with any necessary environment settings (e.g. changing to a directory, setting PATH, etc...) with the last line:
php myscript.php
Install the Windows Server Resource Kit Tools, to get srvany and instsrv to create a user defined service. Note the install path as you'll need it in the next step.
Open a cmd shell and run:
<path_to_resource_kit>\instsrv PHPWebSocketServer <path_to_resource_kit>\srvany.exe
Next, create a file php-websocket-server.reg containing the following (update for your environment):
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PHPWebSocketServer\Parameters]
"Application"="c:\\path\\to\\php-websocket-server.cmd"
Import it by double-clicking or regedit /s php-websocket-server.reg
Back in your cmd shell:
sc config Apache2.4 depend= PHPWebSocketServer
to make the Apache2.4* service depend on your php service. Now, when Apache is started, the php service will be brought up first. And likewise, if you stop the php service Apache will stop along with it.
*the howto indicates that the service is named "Apache2.4" but you may want to verify in your installation.
When running as service, you won't have the startup script.
Execute some service implementation that allows running other programs as services, and then make the new service (which is running your script) a dependency of the Apache service. However, this will not restart the script when apache restarts.
One possible solution using SrvStart, and another using ServiceEx.
Perhaps don't install Apache as a service, and then edit the startup/restart script, and use the above method to run Apache as service (instead of using Apache's own installer).
Create bat file,e eg 'myphp.bat' containing path/php myscript.php. Include the correct path to php if it's not path'd.
create a bat file, eg runmyphp.bat containing
AT 00:00 /every:M,T,W,Th,F "cmd /c /path/myphp.bat", again including the correct path.
Then use explorer to drag runmyphp into the startup folder, so it will always run on system startup.
Google 'windows at command' or 'windows cron' to get all the correct syntax for the 'at' command, but you can currently find a detailed explanation here.
I found another answer C:\wamp\scripts\wampserver.lib.php this file is run every time when your wamp starts
include your file path include_once("file_path"); to this file and its done . this is perfect solution which you want
Enjoy!!!!!!!!!
Although the solution of Halayem Anis is very creative, I think its important to note that you can never be sure that a PHP script keeps running in the background. So if you choose to start your script on "Apache start", then you probably end op resetting Apache quite often, simple to reboot your script.
I assume that's even how you came to this question, as on a normal server you never have to touch the Apache reset button. It starts on system start and then it just runs. If that was the case, you could simple run your php myscript.php command on start up.
Considering there is no way to make sure the script keeps running, I would use a different approach, where I check if it is running and if not, restart it.
So the first step is to make it possible to track if the script is running. I would go for the simple approach where your myscript.php writes a single byte to a file every 5seconds or so. This way I can use the last modified time on the file to see if it is still running, because last modified time + 5 seconds < now == not running.
You could also store the last access time in a database every 5 seconds or so. Might be slightly faster then accessing files if you have a lot of traffic.
The second part is to have each request check if the script is running. For this two work I would use the PHP.ini to prepend a php script on every request. You can do it with the auto_append_file option.
This prepend script would work like this:
<?php
$filename = 'checkonline.txt';
$cmd = "php myscript.php";
if (filemtime($filename)+5<time()) {
//run in background without freezing php
//based on code posted on PHP exec manual, linked below
if (substr(php_uname(), 0, 7) == "Windows"){
pclose(popen("start /B ". $cmd, "r"));
}
else {
exec($cmd . " > /dev/null &");
}
}
?>
Make sure to check how filemtime and exec work and what you need to keep in mind. They work slightly different on Windows/*nix.
Wrap-up all your required processes in a batch file and use RunAsService
With some tweaking, you can ensure that your service starts before Apache.
I'm deploying a PHP application on Heroku and I need to run some tasks using CLI.
In order to do that I have to set LD_LIBRARY_PATH env variable using this command:
heroku config:add LD_LIBRARY_PATH=/app/php/ext:/app/apache/lib
but every time I do it toolbelt overrides the command and the variable points to C:\Program Files (x86)\Git\app\php\ext;C:\Program Files (x86)\Git\app\apache\lib. Obviously it's not okay. Does anyone have any ideas how to do this in proper way?
5 days passed and still I have no answer. The CLI interface is used by scheduler, so I could use this workaround:
export LD_LIBRARY_PATH=/app/php/ext:/app/apache/lib && ~/bin/php ~/www/index.php cron
This is actually not a problem with Heroku toolbelt, it's documented behavior by msys (I'm assuming you're running this in the msysgit shell). You can either run the command in a different shell (eg. Powershell) or use '//' at the start of the path like this:
heroku config:add LD_LIBRARY_PATH=//app/php/ext://app/apache/lib
This won't cause problems when the path is used on Linux.
First, I read some threads by people with similar problems but all answers didn't go beyond export DISPLAY=:0.0 and xauth cookies. So here is my problem and thanks in advance for your time!
I have developed a little library which renders shelves using OpenGL and GLSL.
Last few days I wrapped it in a php extension and surprisingly easy it works now.
But the problem is it works only when I execute the php script using the extension from commandline
$php r100.php(i successfuly run this from the http user). The script is in the webroot of apache and if I request it from the browser I get ** CRITICAL **: Unable to open display in apache's error_log.
So, to make things easier to test and to be sure that the problem is not in the library/extension, at the moment I just want to start xmms with following php script.
<?php
echo shell_exec("xmms");
?>
It works only from the shell too.
I've played with apache configuration so much now that I really dont know what to try.
I tried $xhost + && export DISPLAY=:0.0
In the http.conf I have these
SetEnv DISPLAY :0.0 SetEnv XAUTHORITY /home/OpenGL/.Xauthority
So my problem seems to be this:
How can I make apache execute php script with all privileges that the http user has, including the environment?
Additional information:
HTTP is in video and users groups and has a login shell(bash).
I can login as http and execute scripts with no problem and can run GUI programs which show up on display 0.
It seems that apache does not provide the appropriate environment for the script.
I read about some difference between CLI/CGI but cant run xmms with php-cgi too...
Any ideas for additional configuration?
Regards
Sounds bit hazard, but basically you can add even export DISPLAY=:0.0 to apache start-up script (like in Linux /etc/init.d/httpd or apache depending distro).
And "xhost +" need to be run on account which is connected to local X server as user, though I'm only wondering how it will work as php script should only live while apache http request is on-going.
Edit:
Is this is kind of application launcher?, you can spawn this with exec("nohub /usr/bin/php script.php &"); .. now apache should be released and php should continue working in background.
In your console, allow everyone to use the X server:
xhost +
In your PHP script, set the DISPLAY variable while executing the commands:
DISPLAY=:0 glxgears 2>&1