PHP extensions are usually called 'php.dll' (where the star represents the name of the extension) and they are located under the 'PHPext' folder. PHP ships with the extensions most useful to. Review This is a loadable extension for PHP running on Windows implementing serial port handling and communications. Once installed in PHP environment you can programm PHP applications to control serial device hosted on server from remote location; these devices can be anything from video switcher, cameras pan/tilt, ham radios, media players, home automation boxes, GSM modems/terminals (send. Source: PHP Documentation. This extension may be installed using the bundled version as of PHP 5.3.0, or as a PECL extension as of PHP 5.2.0. In other words, there are two methods to install the intl extension. Source: PHP Documentation. If you have installed the unbundled PHP version, the extension is not installed on the system.
PHP PhpSerial - 18 examples found. These are the top rated real world PHP examples of PhpSerial extracted from open source projects. You can rate examples to help us improve the quality of examples. Some people use the $FILES'file'type' but it's not reliable as been given by the browser and not by PHP. You can use pathinfo as ThiefMaster suggested to retrieve the image extension. First make sure that the image is being uploaded successfully while in.
This section describes on how to install Xdebug.
How you install Xdebug depends on your system. There are the following possibilities:
- Linux with a package manager such as
apt
,yum
, or something else. - Linux without an Xdebug package with PECL.
- macOSX with homebrew, through PECL.
- Windows, with help from a wizard.
- Unix-like operating systems, from source.
Installing on Linux
Installing Xdebug with a package manager is often the fastest way. Depending on your distribution, run the following command:
- Alpinelinux:
sudo apk add php7-pecl-xdebug
- Arch Linux:
sudo pacman -Sy xdebug
- CentOS:
sudo yum install php-xdebug
- CentOS (Remi Repro):
sudo yum install php74-php-xdebug
- Debian (9/stretch, testing/buster/bullseye/sid):
sudo apt-get install php-xdebug
- Fedora (32):
sudo yum install php-xdebug
- Fedora (Remi Repro):
sudo yum install php74-php-xdebug
- Gentoo:
emerge dev-php/xdebug
- Manjaro (20.1/Mikah):
sudo pacman -S xdebug
- RHEL:
sudo yum install php-xdebug
- RHEL (Remi Repro):
sudo yum install php74-php-xdebug
- SUSE (openSUSE, Enterprise):
sudo zypper in php7-xdebug
- Ubuntu (18.04 LTS/Bionic, 20.04 LTS/Focal):
sudo apt-get install php-xdebug
- Ubuntu (Ondřej Surý's PPA):
sudo apt-get install php7.4-xdebug
Linux distributions might be providing an old and/or outdated version.If the package managerinstalls a version that is no longer supported (see Supported Versions), please installXdebug with PECL, or from sourceinstead.
Xdebug's latest version is 3.0.1.
Installing with PECL
You can install Xdebug through PECL on Linux & macOS with Homebrew.Run:
Warning: You should ignore any prompts to add
'extension=xdebug.so'
tophp.ini
— this will cause problems.In some cases
pecl
will change the php.ini
file toadd a configuration line to load Xdebug. You can check whether it did byrunning php -v
. If Xdebug shows up with a version number, thanyou're all set and you can configure Xdebug's other functions, such asStep Debugging, or Profiling.If
pecl
did not add the right line, skip to the Configure PHP section.1 On macOS, you should have PHP installed with Homebrew.
Installing on Windows
There are a few precompiled modules for Windows, they are all for the non-debugversion of PHP. You can get those at the downloadpage. Follow these instructions to get Xdebuginstalled.
Installation From Source
Obtain
You can download the source of the latest stable release 3.0.1.
Alternatively you can obtain Xdebug from GIT:
This will checkout the latest development version which is currently3.1.0-dev. This development branch might not always work asexpected, and may have bugs.
You can also browse the source on GitHub at https://github.com/xdebug/xdebug.
Compile
There is a wizard available that provides youwith the correct file to download, and which paths to use.
You compile Xdebug separately from the rest of PHP. You need access to thescripts
phpize
and php-config
. If your systemdoes not have phpize
and php-config
, you willneed to install the PHP development headers.Debian users can do that with:
And RedHat and Fedora users with:
It is important that the source version matches the installed version as thereare slight, but important, differences between PHP versions. Once you haveaccess to
phpize
and php-config
, take thefollowing steps:- Unpack the tarball:
tar -xzf xdebug-3.0.1.tgz
You should notunpack the tarball inside the PHP source code tree.Xdebug is compiled separately, all by itself, as stated above. cd xdebug-3.0.1
phpize
If phpize is not in your path, please make surethat it is by expanding thePATH
environment variable. Make sureyou use the phpize that belongs to the PHP version that you want to use Xdebugwith. See this FAQ entry if you're having someissues with finding which phpize to use../configure --enable-xdebug
make
make install
Configure PHP
- Add the following line to
php.ini
:zend_extension=/wherever/you/put/it/xdebug
To find out whichphp.ini
file to modify, run a script with thefollowing:Alternatively, you can runphp --ini
on the command line.Note: There could be more than onephp.ini
file. In many set-ups there is a different one for thecommand line (oftencli/php.ini
) and the web server (oftenfpm/php.ini
).Note: If you want to use Xdebug andOPCache together, you must have thezend_extension
line for Xdebugbelow the line for OPCache. Otherwise, they won't work properly together. - Restart your webserver, or PHP-FPM, depending on what you areusing.
- Verify that Xdebug is now loaded.Create a PHP page that calls xdebug_info(). If you request thepage through the browser, it should show you an overview of Xdebug's settingsand log messages.On the command line, you can also run
php -v
. Xdebug and itsversion number should be present as in:
With Xdebug loaded, you can now enable individual features, such asStep Debugging, or Profiling.
Related Settings and Functions
- stringxdebug.log =
- integerxdebug.log_level = 7
- stringxdebug.mode = develop
- xdebug_info() : void
Settings
string xdebug.log = #
Configures Xdebug's log file.
Xdebug will log to this file all file creations issues, Step Debuggingconnection attempts, failures, and debug communication.
Enable this functionality by setting the value to a absolute path. Make surethat the system user that PHP runs at (such as
www-data
if you arerunning with Apache) can create and write to the file.The file is opened in append-mode,and will therefore not be overwritten by default. There is no concurrencyprotection available.
The log file will include any attempt that Xdebugmakes to connect to an IDE:
It includes the opening time (
2020-09-02 07:19:09.616195
), theIP/Hostname and port Xdebug is trying to connect to(localhost:9003
), and whether it succeeded (Connected toclient :-)
). The number in brackets ([2693358]
) is theProcess ID.It includes:
[2693358]
- process ID in brackets
2020-09-02 07:19:09.616195
- opening time
For Step Debugging:
![PhpSerial PHP Code Examples - HotExamples PhpSerial PHP Code Examples - HotExamples](/uploads/1/3/4/1/134199601/820462031.jpg)
For Profiling:
For Function Trace:
Php Extension Tutorial
All warnings and errors are described on the Description of errors page, withdetailed instructions on how to resolve the problem, if possible. All errors are always logged throughPHP's internal logging mechanism (configured with error_login
php.ini
). All warnings and errors also show up in thediagnostics log that you can view by calling xdebug_info().Step Debugger Communication
The debugging log can also log the communication between Xdebug and an IDE.This communication is in XML, and starts with the
<init
XMLelement:The
fileuri
attribute lists the entry point of yourapplication, which can be useful to compare to breakpoint_set
commands to see if path mappings are set-up correctly.Beyond the
<init
element, you will find the configuration offeatures:And continuation commands:
You can read about DBGP - A common debugger protocol specification at its dedicated documation page.
The xdebug.log_level setting controls how much information islogged.
Note: Many Linux distributions now use systemd, whichimplements private tmp directories. This means that when PHPis run through a web server or as PHP-FPM, the
/tmp
directory isprefixed with something akin to:This setting can additionally be configured through the
XDEBUG_CONFIG
environment variable.integer xdebug.log_level = 7#
Configures which logging messages should be emitted.
The following levels are supported:
Level | Name | Example |
---|---|---|
1 | Errors | Connection errors |
3 | Warnings | Connection warnings |
5 | Communication | Protocol messages |
7 | Information | Information while connecting |
10 | Debug | Breakpoint resolving information |
Errors are also logged throughPHP's internal logging mechanism (configured with error_login
php.ini
).Warnings and errors show up in thediagnostics log that you can view by calling xdebug_info().
Php Extensions List
This setting can additionally be configured through the
XDEBUG_CONFIG
environment variable.string xdebug.mode = develop#
This setting controls which Xdebug features are enabled.
This setting can only be set in
php.ini
orfiles like 99-xdebug.ini
that are read when a PHP process starts(directly, or through php-fpm), but not in .htaccess
and.user.ini
files where are read per-request.The following values are accepted:
off
- Nothing is enabled. Xdebug does no work besides checking whetherfunctionality is enabled. Use this setting if you want close to 0overhead.
develop
- Enables Development Aids including the overloaded var_dump().
coverage
- Enables Code Coverage Analysis to generate code coverage reports, mainly incombination withPHPUnit.
debug
- Enables Step Debugging. This can be used to step through your code while itis running, and analyse values of variables.
gcstats
- Enables Garbage Collection Statistics to collect statistics about PHP's GarbageCollection Mechanism.
profile
- Enables Profiling, with which you can analyse performance bottleneckswith tools like KCacheGrind.
trace
- Enables the Function Trace feature, which allows you record every functioncall, including arguments, variable assignment, and return value that is madeduring a request to a file.
You can enable multiple modes at the same time by comma separating theiridentifiers as value to xdebug.mode:
xdebug.mode=develop,trace
.You can also set the mode by setting the
XDEBUG_MODE
environmentvariable on the command-line; this will take precedence over the xdebug.mode setting.Functions
xdebug_info() : void#
This function returns an HTML page which shows diagnostic information. It is analogous to PHP's phpinfo() function.
The HTML output includes which mode is active, what the settings are, and diagnostic information in case there are problems with debugging connections, opening of files, etc.
Each warning and error in the diagnostics log also links through to the Description of errors documentation page.
(More Info) |
adapted from: http://www.fritz-hut.com/2012/08/30/php-serialclass-with-arduino-raspberrypi/
Php File Extension
One very interesting type of application of the Raspberry Pi is to control our environment, typically some sort of home automation or monitoring device. For that, you need to be able to control and/or monitor hardware devices, like relays, temperature sensors and the like. The Raspberry Pi is not well adapted to directly controlling hardware because of its limited IOs (it does not have analog inputs or outputs for instance). Also, let's face it, in spite of the processing power of the CPU in the Raspberry PI, some tasks are simply more easily done with a small microcontroller like an Arduino or an 8051 (put your favorite microcontroller here..)
This page will show you how to interface a web page served from a Raspberry Pi to an Arduino via the serial port.
Installing PHP-Serial
Download it from Github: https://github.com/Xowap/PHP-Serial
Configuring your Raspberry Pi for PHP serial class
Before you can use the class some stuff must happen (I assume you have Apache installed and PHP enabled and the Raspberry Pi is running). First we need to find out what user runs PHP. Create a file named whoami.php under the /var/www directory as follows:
Add the following content:
Then fetch the whoami.php page from your laptop or PC's web browser.
For Apache on Raspbian, the browser will return www-data. It may be different with other web servers.
Every serial connection (virtual of physical) is owned by the dialout group, so if we add www-data to the dialout group our PHP scripts should be able to open/read/write the serial device, which is better than running everything as root, or setting permissions to 'all can read from and write to everything'. The following command will add the dialout group to www-data.
Running the command groups www-data give the following result:
Great, www-data belongs to dialout and www-data. Now RESTART your Raspberry Pi.
Testing the connection
To test the PHP setup, I’ll write a simple script that just sends a string to the Arduino.
First I enable all the errors, the PHP_Serial class issues warnings on failure and by default they aren’t displayed (in a normal PHP configuration). Then I include the PHP_Serial class file. Next I initiate a new phpSerial object called $serial and configure some parameters. We don’t have parity, characters are 8 bits and we use 1 stop bit. After that I can open the device send my message and *close it*. Ifr 1200 service monitor manual. Finally I echo some feedback to the browser saying I did my job.
Note: It is very important to close the serial device each time, otherwise it will stay open and the script will only work once until your reboot.
I don’t know how or why but for every connection I open, I get question marks (unknown chars). They have a decimal value of 254 and I really don’t have a clue what they are. When I use a normal echo command in the terminal I don’t get those characters.
Debugging the PHP serial class
A lot can go wrong, so lets cover the basics.
If your browser keeps loading and nothing happens then your Serial connection is locked up, restart your Pi to release it and see that you close the device in your PHP script.
If that does not fix it then there might be a problem with user permissions. Go back to the first part of this page to make user that the user www-data belongs to the dialout group. Use the following command to check if the dialout group has access to the /dev/ttyAMA0 device:
If the browser says the message is sent but you don’t see anything on the Arduino serial monitor then check for common flaws: unplugged cables, wrong level converter circuit, baud rate and so on.