I am using php version 7 and defined a class that extend Thread class but when I run My Program that give me Class 'Thread' not found error.I searched and I found out I must copy pthreadVC2.dll in apache and system32 folders and copy php_pthreads.dll in php/ext and system32 folders and add extension=php_pthreads.dll to php.ini .I did all these works but I get that error again.php_pthreads.dll and pthreadVC2.dll version is 14
<?php
class exampleThread extends Thread
{
var $Mobile;
var $code;
public function __construct($Mobile, $code)
{
$this->Mobile = $Mobile;
$this->code = $code;
}
public function run()
{
}
};
?>
The pthreads extension cannot be used in a web server environment. It is only available in the CLI.
Whatever you're trying to do, you'll need to come up with another way of doing it.
As stated in the answer from duskwuff, the pthreads extension cannot be used in a web server environment.
We were playing around for about 1 week and unfortunately had to realize that running it in the CLI version leads to too many issues once it becomes too complicated --> we stopped and removed pthreads from our environment.
What I can suggest you:
Due to the fact we still need a multi-threaded functionality we were checking several methods and ended up using curl multi functions.
With curl multi functions you achieve a full multi-threading execution - and especially in our case - when you got lot of cores [we have 48] you can indeed use all of them when you spawn your tasks with curl...
The PHP curl multi exec documentation is very poor. I refer to this thread where you get additional information.
Related
I am writing a php extension for a library. I have a generic swig file to build wrappers for the library. This has been very successful so far on Python.
A user is trying to build the library for php and I am trying to help out. I generated the code using swig, and I can build the .dll extension using Visual Studio. The problem is getting it into php. When I build php_mylib.dll, it needs to find mylib.dll and it can't.
So I am trying to build via the command line a la:
http://blog.benoitblanchon.fr/build-php-extension-on-windows/
I have put all the files to be compiled and the libraries needed (i.e. mylib64.lib and mylib64.dll) in a folder called mylib in the C:\php-src\ext folder with all the other extension folders.
The problem is I that I can't get the config.w32 file to communicate the location of mylib. Here is my config.w32 file (pretty standard -- you can see that I copied it from the curl config.w32 file):
// $Id$
// vim:ft=javascript
ARG_ENABLE("mylib", "mylib support", "no");
if (PHP_MYLIB != "no") {
if (CHECK_LIB("mylib64.lib", "mylib", PHP_MYLIB) &&
CHECK_HEADER_ADD_INCLUDE("mylib_cpp.h", "CFLAGS_MYLIB")
) {
EXTENSION("mylib", "mylib_c_wrap.cpp", true);
AC_DEFINE('HAVE_MYLIB', 1, 'Have mylib library');
// TODO: check for curl_version_info
} else {
WARNING("mylib not enabled; libraries and headers not found");
}
}
When I run buildconf and then configure --disable-all --enable-cli --enable-mylib it always shoots me the 'libraries and headers not found' warning from the script.
On Unix systems (config.m4) there appears to be a PHP_ADD_LIBRARY_WITH_PATH macro but I don't see any equivalent for windows. It seems like this is what I need.
I have also tried adding the full path to mylib into the system's path but to no avail. It seems like there might be an environment variable somewhere in the PHP build cosmos that needs to be set to find external dependencies, but I can't find any information about this.
It would also be good to do all this as a Visual Studio project -- easier for Windows users the world over. I have not seen anything on the web that looks like this.
By the way, I have successfully phpized this library using the same swig+phpize procedure on Linux (I followed this guide for the php part:http://www.sitepoint.com/install-php-extensions-source/) and it works beautifully.
In most cases you can use this info to build a PECL extension https://wiki.php.net/internals/windows/stepbystepbuild#building_pecl_extensions . Your config.w32 looks ok, though please note that that when depending on some additional library, usually it should be ARG_WITH(...) for semantics. Your lib stuff can be then put into the deps dir as in the wiki.
Another way could be passing --with-extra-libs and --with-extra-includes to configure. Those have to contain paths to *.lib and *.h dirs respectively. When using a static lib, that should be it, otherwise you'll need to place the corresponding *.dll onto the %path% for the ext to work.
Hope this helps, otherwise you can also gain some attention on the PHP mailing lists or specifically on #winphp-dev at freenode.
Thanks.
I am using wampserver to test & run wordpress code in my local computer. In order to run pthread, I have followed the following steps:
1) I got the pthread zip file from http://windows.php.net/downloads/pecl/releases/pthreads/0.44/
(My machine has php 5.3.13 and downloaded the php_pthreads-0.44-5.3-ts-vc9-x86.zip file from the above link).
2) Extracted the zip file. Moved the php_pthreads.dll to the C:\wamp\bin\php\php5.3.13\ext directory.
3) Moved pthreadVC2.dll to the C:\wamp\bin\php\php5.3.13 directory.
4) Then Opened C:\wamp\bin\php\php5.3.13\php.ini and added the code extension=php_pthreads.dll at the begining of the file.
But when I try to run the following code:
<?php
class My extends Thread {
public function run() {
printf("%s is Thread #%lu\n", __CLASS__, $this->getThreadId());
}
}
$my = new My();
$my->start();
?>
It gives me the following error:
Fatal error: Class 'Thread' not found in C:\wamp\www\wp-admin\includes\post.php on line 2
Can you please tell me how to install pthreads in my computer to use with php? and do I have to install any other software?
I've noticed that wampserver has php.ini in two separate places. One place is in the /wamp/bin/php/php5... directory, and the other place is in the /wamp/bin/apache/apache.../bin directory (where "..." represents version numbers). The two files need to be identical, because apparently both are loaded at different times by the overall wampserver boot-up procedure.
(Note I only discovered this recently, and may be well "behind the curve" of doing fancy things with wampserver --maybe everyone else has been dealing with both files for a long time. So I don't know if this simple thing will fix your problem; I came here looking for info, myself, regarding doing some multi-threading stuff. :)
One other thing. According to this page: www.php.net/manual/en/pthreads.requirements.php
PHP has to be compiled with "--enable-zts" in order for pthreads stuff to work. I have not been able to find any evidence that the PHP part of wampserver was compiled that way.
(months later)
Having decided I didn't really immediately need to do any threading stuff, I went on to do other things, until the need actually arose. I now can say that the version of PHP compiled into WampServer does support the "pthread" extension, although some set-up work is needed, first. The instructions I saw mentioned putting a couple of .dll files (after a download and unZip) into certain places, but that didn't work for me. Copying them to the \Windows\System32 directory did work. (Putting them into the \apache...\bin directory also works; there are some other php .dll files in there.)
After that, much like what you did, it is necessary to define a "class" that extends the "Thread" class, in order to actually do something in another thread. The "run()" function in the Thread class is "abstract", and needs to be "realized" as an actual function in the extended class. Then the "new" operator can create an "instance", an object of that specified class, for actual use. Here's the class that I needed:
//Purpose: Use another thread to run the code in another php file, after a delay
class xT extends Thread
{ var $fil, $tim;
function savWhatWhen($f="", $t=0)
{ $this->fil = $f; //save What, file to process
$this->tim = $t; //save When, delay before processing file
return;
}
function run()
{ ini_set('max_execution_time', 600); //600 seconds = 10 minutes
sleep($this->tim); //do a delay; beware of max-exec-time!
include($this->fil); //load file-to-process, and process it
return;
} }
That "savWhatWhen()" function was created specifically for this extension of the basic Thread class. Here's some code for using that class:
$TH = new xT(); //prepare a separate Thread
$TH->savWhatWhen("d:/wamp/myscripts/test.php", 45);//file-name and delay time
$TH->start(); //after delay, process file
//the code that does this can terminate, while OTHER thread is doing a delay
Note for anyone copying this code, you might need to make sure your "open_basedir" setting in the php.ini allows access to the specified file.
More months later: With lots of things being worked on, I haven't put a lot of time into using my pthread object. I did encounter a peculiarity that makes me wonder about whether or not I can actually use pthreads the way I had hoped. Here is what I have observed:
1. An initial php file is called by AJAX, to do something.
2. The PHP processor on the Web Server does that thing.
3. Various data is supposed to be echoed to the browser.
4. The initial php file calls for the creation of another thread, and terminates.
5. The browser does not yet receive the echoed data!
6. The PHP processor on the Web Server does the work delegated to the second thread.
7. When the second thread terminates, NOW the browser receives the echoed data!
At this writing I'm thinking I missed something. Perhaps I need to do some forceful "flush" stuff when the first thread ends, so that the browser can receive the echoed data and the user can do things while the PHP processor on the server is also doing things.
Check for extension_dir = "ext" in you php.ini file. Make sure it points to the folder where your extensions reside and make sure it's not commented (it has a semicolon ; in front of it)
You have to add a require_once() with the path of the Thread class before extending it (if your framework don't use an autoload class system)
I've encountered the same problem, in my case placing the pthreadVC2.dll in
..wamp\bin\apache\Apache2.4.4\bin
(instead of ..\wamp\bin\php\php5.4.16 as the guide in php.net instructs) solved the problem
Wamp server has a separate php.ini config file for the browser and for the cli.
To use the pthreads module in the browser with WAMP Server you need to copy the "pthreadVC2.dll" into the apache "bin" directory also.
You should now have he "pthreadVC2.dll" in both of these folders (if installed in default location):
C:\wamp\bin\php\php[x.x.xx]\bin
C:\wamp\bin\apache\apache[x.x.x]\bin
You will also need to update the php.ini file within the php bin directory AND the apache bin directory to include:
extension=php_pthreads.dll
This now means you can use pthreads in the browser and in the cli with wamp server
After encountering the same problem, I noticed that I have installed the wrong Pthread version (3.1.6 : requires PHP7+) which wasn't compatible with my PHP version (5.5.12). Solved the problem with Pthread version 0.0.44. An earlier version should probably work well.
Here is the download page for Pthread and the installation page. Be careful about the both php.ini location as mentioned above (Apache folder=for Browser, PHP folder=CLI).
I use Netbeans on my windows desktop to debug a PHP web application remotely running on a Linux server with xdebug installed. One missing feature that constantly bothers me is: I can not view the content of static variables in a class. Often I have to resort to the "print" or "var_dump" method to find the variable content, which is very inconvenient.
Does anyone know how to config it properly? I failed to find any related settings in the Netbeans menu. My Netbeans version is 7.0.1 running on Windows 7, and my remote server is CentOS 5.4 running PHP 5.2 with the latest xdebug module.
Well, it seems fixed (more like "added") in xdebug 2.1.3, but I can't test it yet, as there aren't DLL's for my setup (VC9 only; hope there'll be VC6, too). Give it a go.
Until then, use watches (another "great" method). Using the example in the link (and I'm reffering to NetBeans here):
class testclass {
static private $name;
static public function show_name() {
//do something with $name
self::$name = "Sir John\n" . self::$name;
return self::$name;
}
}
echo testclass::show_name();
Put a breakpoint at the return statement.
Start debugger
If you don't see the "Watches" tab, go to menu -> Windows -> Debugging -> Watches
Go to Watches tab, right-click, New Watch. Type self::$name as the expression. (for regular vars, use $varName as expression). This was the tricky part. I didn't know about this until now.
Run code.
If you control-click the variable, does it not take you to the variable definition automatically? This is the behavior I have.
I have a live server which I want to occasionally use for testing purposes. I only have access to FTP and some basic administration tools there.
Reading the documentation for dl() gives me hope I can load xDebug dynamically even though I can't add it to the loaded extension list. I have little idea how though.
Question: How to obtain the appropriate compiled version of xdebug (or any other PHP extension) which would be ready to be used with dl()?
BTW, AFAIK the OS is CentOS 4 in my case, but I'd appreciate a broader answer too - for future reference.
xdebug is a zend-engine extension and thus cant be loaded dynamically.
You can try with xhprof instead. That should be possible to load at run time (I haven't much experience with it though, so i cant offer you specifics)
I usually use php_uname to determine the server OS
function os_check() {
$os_string = php_uname('s');
if (strpos(strtoupper($os_string), 'WIN')!==false) {
return 'windows';
} else {
return 'linux';
}
Such information is in various places in phpInfo()
<?php
phpinfo();
?>
I'm using Windows on some production machines (IIS with FastCGI-PHP). Since the update of one SF-Project to 1.3.x I notice some strange problems. The Server is "collecting" Temp-Files in the config-cache folder of the applications. They are named like con1718.tmp and always containing the autoload-config-cache. The tmp-files are not generated for every request but I have 1 or 2 new files every half an hour or so. If the application is running some days/months there are a lot of these Temp-Files (Megabytes of them).
Machine-Details: - Windows Server 2008 - IIS 7 - ZendServer? with PHP 5.2.11
Project with SF 1.3.3
Any ideas what the problem can be?
I checked out symfony 1.4 and saw this in the code:
// Hack from Agavi (http://trac.agavi.org/changeset/3979)
// With php < 5.2.6 on win32, renaming to an already existing file doesn't work, but copy does,
// so we simply assume that when rename() fails that we are on win32 and try to use copy()
if (!#rename($tmpFile, $cache))
{
if (copy($tmpFile, $cache))
{
unlink($tmpFile);
}
}
This piece of code should be in sfConfigCache.php on line 354, could you check you have this lines? If not, consider updating, or patching, and if yes, you could log $tmpFile before unlinking it, just to see if there is an attempt to unlink these files or not.
To add more information log, you should try this code instead:
if (!#rename($tmpFile, $cache))
{
sfContext::getInstance()->getLogger()->info('attempt to renaming ' . $tmpFile . ' failed, trying copy');
if (copy($tmpFile, $cache))
{
sfContext::getInstance()->getLogger()->info('copy successful, now unlinking ' . $tmpFile);
unlink($tmpFile);
}
else
{
sfContext::getInstance()->getLogger()->err('probem with copy for file '.$tmpFile);
}
}
'con1718.tmp' looks like a temporary file name generated with tempnam PHP function:
tempnam('c:/tmp', 'con'); // produces something like c:\\tmp\con1234.tmp
I used grep on symfony sources to find such calls but didn't find any tempnam() usage with 'con'. Maybe it's one of the plugins you're using?
Any chance you're running the Windows Cache Extension for PHP (Windows Cache Extension 1.1 for PHP 5.2 in Web Platform Installer 2.0)? I've noticed that while this package tries to ape the behaviour of APC PHP Accelerator that is widely used, it does consume a lot of resources and do some odd things, especially file writes in odd places. I've yet to mash symfony and it together, but will be doing so in the next few weeks. Otherwise, my specs match yours quite closely.
Not a full answer maybe, but if it is installed, how about disabling it and retrying?