php
PHP Command Line Interface ’CLI’
Synopsis
php
[options] [ -f ] file [[--]
args...]
php
[options] -r code [[--]
args...]
php
[options] [-B code] -R code
[-E code] [[--] args...]
php
[options] [-B code] -F file
[-E code] [[--] args...]
php
[options] -- [ args...]
php
[options] -a
add an example, a script, a trick and tips
examples
php -r ’echo "Hello World\n";’
This command simply writes the text "Hello World" to standard
out.
php -r ’print_r(gd_info());’
This shows the configuration of your gd extension. You can use
this to easily check which image formats you can use. If you have
any dynamic modules you may want to use the same ini file that
php uses when executed from your webserver. There are more
extensions which have such a function. For dba use:
php -r ’print_r(dba_handlers(1));’
php -R ’echo strip_tags($argn)."\n";’
This PHP command strips off the HTML tags line by line and
outputs the result. To see how it works you can first look at the
following PHP command ´php -d html_errors=1 -i´ which uses
PHP to output HTML formatted configuration information. If you
then combine those two ´php ...|php ...´ you’ll see what
happens.
php -E ’echo "Lines: $argi\n";’
Using this PHP command you can count the lines being input.
php -R ’@$l+=count(file($argn));’ -E ’echo "Lines:$l\n";’
In this example PHP expects each input line being a file. It
counts all lines of the files specified by each input line and
shows the summarized result. You may combine this with tools like
find and change the php scriptlet.
php -R ’echo "$argn\n"; fgets(STDIN);’
Since you have access to STDIN from within -B -R -F and -E you
can skip certain input lines with your code. But note that in
such cases $argi only counts the lines being processed by php
itself. Having read this you will guess what the above program
does: skipping every second input line.
source
PHP Fatal error: Call to undefined method PEAR::raiseErro() in /usr/share/php/PEAR/REST.php on line 165
I had this on Ubuntu 10.04 installing the Mongo PHP-extension.
Did some research and tried this:
# pear search http
The value of config option cache_dir (/tmp/pear/cache) is not a directory and attempts to
create the directory failed.
When I created the directories by hand:
mkdir -p /tmp/pear/cache
the error "went away" and I was
able to install: "pecl install mongo".
source
How to add PHP in netbeans on Ubuntu?
The first result when googling "php netbeans ubuntu", this should solve your
problems.
source
Making Apache use compiled PHP instead of bundled package on Debian
Debian can actually help you here--apt-get
has a
mode for downloading the source and build-dependencies for a
package, which you can then tweak and build yourself. In theory,
the setup should be identical to what Debian's repository
contains, so it ought to integrate well with your version of
Apache.
I originally found this is PHP Magazine where they used it to
customize the version of GD they were compiling with PHP. But you
could use it for changing other build flags just as easily.
http://web.archive.org/web/20101229025544/http://www.phpmag.ru/2009/09/12/ubuntu-9-04-php-5-gd-2/
Since the original site isn't available any more (link above is
through the Way Back Machine), I'm reproducing the instructions
here:
# Install build tools, debian helpers and fakeroot
apt-get install build-essential debhelper fakeroot
# Get PHP source (it should go into /usr/src)
cd /usr/src
apt-get source php5
# Install all packages required to build PHP5
apt-get build-dep php5
#Now what we need is to update compile options,
# so we need to edit debian/rules file:
cd php5-5.2.6.dfsg.1
vim debian/rules
# locate the line having "--with-gd=shared,/usr --enable-gd-native-ttf \"
# replace with "--with-gd=shared --enable-gd-native-ttf \"
# that's remove reference to /usr so that bundled library is used
# compile (drink some coffee, walk you dog, see the latest House episode)
dpkg-buildpackage -rfakeroot
# install the new php5-gd package
cd ..
dpkg -i php5-gd_5.2.6.dfsg.1-3ubuntu4.2_i386.deb
# finally restart apache
/etc/init.d/apache2 restart
Obviously, change the version number to match the version you're
actually compiling, and replace the flags with the ones you
actually want.
source
Linux server broken packages
Ok here's what I ended up doing:
First of all, I would recommend using aptitude
instead of apt-get
because it makes better choices
by default. So, I went ahead and accepted aptitude's first
solution, which was to leave everything the same version except
for php5-curl
which was to be installed. Trust me,
you don't want to update the php5-common
or
libapache2-mod-php5
packages on a mission-critical
server because they have a million dependencies. Then the server
couldn't download the package because the repositories are
outdated on this server (it's 10.04 remember) and it couldn't
find the .deb file. So, I copied the name
php5-curl-5.2.10.dfsg.1-2ubuntu6_amd_64.deb
and
Google'd it and found site hosting the .deb file. I then did the
following commands to install this package without causing
dependency hell:
$ wget http://www.thesitewhereyoufounditongoogle.com/php5-curl-5.2.10.dfsg.1-2ubuntu6_amd_64.deb
$ sudo dpkg -i php5-curl-5.2.10.dfsg.1-2ubuntu6_amd_64.deb
and then of course restart Apache
$ sudo /etc/init.d/apache2 restart
And voila! cURL was installed.
source
modify 128 bytes
Simply open the file in "append" or similar mode, seek to
position 0, then write your data.
"Linux native commands": the syscalls (or their libc wrappers)
are as close as you can get.
#include <fcntl.h>
#include <unistd.h>
void main() {
char buf[128] = "this and that";
int fd = open("file", O_WRONLY);
lseek(fd, 0, SEEK_SET);
write(fd, &buf, sizeof(buf));
close(fd);
}
PHP:
<?php
$buf = "this and that";
$fh = fopen("file", "a" "r+");
fseek($fh, 0);
fwrite($fh, $buf);
fclose($fh);
source
Server uptime checker?
If all you want to do is find out if its up, write a script to
ping the server every 10 min or so. If you want something that
will actually check functionality (like delivering a web page)
write a javascript snippet that will refresh your page every n
minutes.
source
What are the benefits of using Linux OS to develop a PHP based website?
I've been using Windows, Mac and Ubuntu for PHP development, and
if your environment is set correctly, there's absolutely no
difference imho.
Some tools, like Git, are less available for Windows, so you may
need to look for special deployables or use cygwin, but generally
speaking, no difference.
source
How to convert .PDF and .doc/.docx files to .HTML files?
You should give unoconv a spin. It should be able to convert
anything that Open Office can read to anything it can write.
This works on doc/docx and a whole lot of other files. It does
not seem to work on PDF's so I guess you're stuck with using 2
separate programs for the job.
source
Execute PHP files in mounted directory from VirtualBox host system is not working
Check the options on the mount. Is "noexec" enabled?
source
Installed mysql from source on linux and then how to get it work with php?
Finally I recompiled my php source with appending
--with-mysql=/opt/mysql
,
--with-mysqli=/opt/mysql/bin/mysql_config
and
--with-pdo-mysql
three configure options to let my
php support the modules of mysql. Steps taken as follows:
1> stop apache and mysql services
2> backup php.ini
3> remove php
4> reconfigure php source
./configure --prefix=/opt/php
--with-apxs2=/opt/apache/bin/apxs --with-mysql=/opt/mysql
--with-mysqli=/opt/mysql/bin/mysql_config --with-pdo-mysql
--...and other options
5> make and then make install
6> copy php.ini back and uncomment the corresponding directs
on mysql modules
source
How can two identically named files exist in the same place on linux
It can happen when one of the file name has special character
which is not visible.
Either its not visible in the browser or your file browser is
just stripping this character. Many software does it to beautify
the output.
source
php startup error Invalid library (maybe not a PHP library) 'pcntl.so'
You should have a file called pcntl.so
in the
modules
subdirectory of the directory where you
built php. Copy that to /usr/lib/php5/20090626/
:
sudo cp PHP_BUILD_DIR/modules/pcntl.so /usr/lib/php5/20090626/
Obviously, change PHP_BUILD_DIR
to the directory
where you compiled php.
source
phpmyadmin symlinks error after ubuntu upgrade
For me the following solution solved the problem:
In my website conf file, I have the following section:
<IfModule mod_php5.c>
AddType application/x-httpd-php .php
php_flag magic_quotes_gpc Off
php_flag track_vars On
php_flag register_globals Off
php_admin_flag allow_url_fopen Off
php_value include_path .
php_admin_value upload_tmp_dir /var/lib/phpmyadmin/tmp
php_admin_value open_basedir /usr/share/phpmyadmin/:/etc/phpmyadmin/:/var/lib/phpmyadmin/:/usr/share/php/php-gettext/
</IfModule>
The only change I've made since Ubuntu 13.04 install is include
/usr/share/php/php-gettext/ in the open_basedir, and that did the
trick.
source
How to find out from Apache what pages cause long loading times?
Run them with Apache JMeter.
Apache JMeter may be used to test performance both on static
and dynamic resources (files, Servlets, Perl scripts, Java
Objects, Data Bases and Queries, FTP Servers and more). It can
be used to simulate a heavy load on a server, network or object
to test its strength or to analyze overall performance under
different load types. You can use it to make a graphical
analysis of performance or to test your server/script/object
behavior under heavy concurrent load.
description
PHP is a
widely-used general-purpose scripting language
that is especially suited for Web development and can be
embedded into HTML. This is the command line interface that
enables you to do the following:
You can parse
and execute files by using parameter -f followed by
the name of the file to be executed.
Using parameter
-r you can directly execute PHP code simply as
you would do inside a .php file when using the
eval() function.
It is also
possible to process the standard input line by line using
either the parameter -R or -F. In this mode each
separate input line causes the code specified by
-R or the file specified by -F to be
executed. You can access the input line by $argn.
While processing the input lines $argi contains the
number of the actual line being processed. Further more the
parameters -B and -E can be used to execute
code (see -r) before and after all input lines
have been processed respectively. Notice that the input is
read from STDIN and therefore reading from
STDIN explicitly changes the next input line or skips
input lines.
If none of
-r -f -B -R -F or -E is
present but a single parameter is given then this parameter
is taken as the filename to parse and execute (same as with
-f). If no parameter is present then the standard
input is read and executed.
options
--interactive
-a
Run PHP interactively. This lets you enter snippets of
PHP code that directly get executed. When readline support
is enabled you can edit the lines and also have history
support.
--bindpath
address:port|port
-b address:port|port
Bind Path for external FASTCGI
Server mode (CGI only).
--no-chdir
-C
Do not chdir to the script’s directory (CGI
only).
--no-header
-q
Quiet-mode. Suppress HTTP header output (CGI only).
--timing count
-T count
Measure execution time of script repeated count times
(CGI only).
--php-ini
path|file
-c path|file
Look for php.ini file in the directory
path or use the specified file
--no-php-ini
-n
No php.ini file will be used
--define
foo[=bar]
-d
foo[=bar]
Define INI entry foo with value bar
-e
Generate extended information for debugger/profiler
--file file
-f file
Parse and execute file
--global name
-g name
Make variable name global in script.
--help
-h
This help
--hide-args
-H
Hide script name (file) and parameters
(args...) from external tools. For example you may
want to use this when a php script is started as a daemon
and the command line contains sensitive data such as
passwords.
--info
-i
PHP information and configuration
--syntax-check
-l
Syntax check only (lint)
--modules
-m
Show compiled in modules
--run code
-r code
Run PHP code without using script tags
’<?..?>’
--process-begin
code
-B code
Run PHP code before processing input lines
--process-code
code
-R code
Run PHP code for every input line
--process-file
file
-F file
Parse and execute file for every input line
--process-end
code
-E code
Run PHP code after processing all input lines
--syntax-highlight
-s
Output HTML syntax highlighted source
--version
-v
Version number
--stripped
-w
Output source with stripped comments and whitespace
--zend-extension
file
-z file
Load Zend extension file
args...
Arguments passed to script. Use
’--’ args when first
argument starts with ’-’ or script
is read from stdin
--rfunction
name
--rf
name Shows information about function
name
--rclass
name
--rc
name Shows information about class
name
--rextension
name
--re
name Shows information about extension
name
--rzendextension
name
--rz
name Shows information about Zend extension
name
--rextinfo
name
--ri
name Shows configuration for extension
name
--ini
Show configuration file names
copyright
Copyright © 1997-2010 The PHP Group
This source file is subject to version 3.01 of the PHP license,
that is bundled with this package in the file LICENSE, and is
available through the world-wide-web at the following url:
http://www.php.net/license/3_01.txt
If you did not receive a copy of the PHP license and are unable
to obtain it through the world-wide-web, please send a note to
license[:at:]php[:dot:]net so we can mail you a copy
immediately.
files
/etc/php5/cli/php.ini
The configuration file for the CLI version of PHP.
/etc/php5/cgi/php.ini
The configuration file for the CGI version of PHP.
/etc/php5/apache2/php.ini
The configuration file for the version of PHP that apache2 uses.
tips
You can use a shebang line to automatically invoke php from
scripts. Only the CLI version of PHP will ignore such a first
line as shown below:
#!/bin/php
<?php
// your script
?>
version information
This manpage describes php, version 5.4.9-4ubuntu2.2.
bugs
You can view
the list of known bugs or report any new bug you found at:
http://bugs.php.net
see also
For a more or
less complete description of PHP look here:
http://www.php.net/manual/
authors
The PHP Group:
Thies C. Arntzen, Stig Bakken, Andi Gutmans, Rasmus Lerdorf,
Sam Ruby, Sascha Schumann, Zeev Suraski, Jim Winstead,
Andrei Zmievski.
Additional work
for the CLI sapi was done by Edin Kadribasic, Marcus Boerger
and Johannes Schlueter.
A List of
active developers can be found here:
http://www.php.net/credits.php
And last but
not least PHP was developed with the help of a huge amount
of contributors all around the world.