xhtml development n programming

Convert your PSD to XHTML/css at a very cheap coast.

Are you looking out for developer / programmer to convert your website design in to a W3C Valid and search engine friendly XHTML/CSS?? Then you are at correct place.
Royads is team of experience web developers,programmers and webmasters from India-Mumbai.

Features and benefits of having XHTML

• W3C Validated HTML
• Search Engine Optimized
• Cross-Browser compatibility
• Increased browser rendering speed

How to get XHTML/css done?

You just have to provide us the PSD( photoshop template ) files, and we will do it for you. The development coast depends upon no of pages.

Contact XHTML/css designer

Mail : php.freelancer.mumbai[@]gmail.com

website programmer mumbai bombay

Welcome to Royads - a freelancer blog-
For all your website design and development needs.........

About website programmer / Freelancer - PHP / ASP
I am a website programmer from mumbai(Bombay). We are the team of experienced freelance web designers, website programmers and graphic designers working from last 3 years on different web technologies like PHP and ASP and delivering quality products to our clients worldwide. We always strive for the highest level of quality and accuracy in the products we deliver.

Education
Diploma in Computer Science & engineering.
B.E. with Computer Science & engineering.

Web Development Services
1. Website Designing. - More..
2. Website development.
3. Website maintenance
4. PHP / MySQL website development. - More..
5. PHP - MySQL script installation
6. E-Commerce – Online shopping portals with payment solutions.
7. Installation of open source scripts.
8. Business website development.
9. Corporate website development.
10. Template designing.
11. Logo Designing.

Website Promotion Services
1. Search Engine Optimization ( SEO ). - More..
2. Link Building.
3. Keyword Analysis and suggestions.

Technology
Our objective is to deliver the high quality product and maintenance to our clients, we always achieve this by using right technology for product development. PHP is very strong server side programming language and thus we are specialize in PHP/MySQL website development. We always suggest to our clients to use the correct technology for there products. We are mainly working on server side programming languages including PHP4 , PHP5 , ASP.

Server Side Programming
-PHP 4 , PHP5 , ASP.
Website Designing
-HTML / CSS , Javascript, AJAX.
Database Designing
-MySQL,MsSQL.

Team
Royads is a team of website programmers and designers based in Mumbai, India. Focused on providing world-class web development services to customers worldwide.

Our team is set up with specialized graphic designers and smart website developers.

Royads is a fast growing freelancer team from India. A group of experts with vast industry and domain expertise lead royads talented and dedicated team of website production and maintenance.

Whether it is design or development, modules integration, server settings and installation , website promotion royads has the skills and ability to deliver the high quality products.

Sample websites
We have delivered lots of web portals like,
1. Online T-shirt shop - Shopping cart website.
2. Corporate gift shop - Shopping cart website.
3. Buddhist matrimonial - Matrimonial website.
4. Muslim matrimonial - Matrimonial website.
5. Real estate - Corporate website.
5. Animation company - Corporate website.

We have developed lots of websites. Take a look at sample websites in the slide show at right side of this page.
View sample websites by royads

Our Clients
We have delivered the quality products to lots of our clients located at different places in the world. Our client sites are located in New Zeland , Unites States, India - Mumbai,Bombay.

Contact Freelancer Mumbai
Mail : php.freelancer.mumbai[@]gmail.com


----------- Hire / rent php programmer -----------
Per hour charges
Our freelancer team works on project basis and/or hour basis. Normally we work on project basis for full fresh website development and we work on hourly basis if the work is like maintenance or module integration.

Project Rates :
Coast per project is totally depend upon the complexity of web application and the estimated time.

Hourly Rates :
Our current hourly charges are : $7 / hr.

Cross Site Scripting XSS browser attacks

Cross Site Scripting (XSS)

Now a days Web applications are becoming more and more dynamic. Dynamic websites means contents shown on web page are pulled dynamically depending on some settings. These setting may include sending some important variables in query string, or sending the data entered by users with post form type. So in simple words we can say that your dynamic web application needs some contents / data inputs from user, and this is the point where Cross Site Scripting
(XSS) comes in picture.
As your dynamic web application is accepting some data from users or from query string. Some users get the front door open to enter in your application and put there codes in your application. These Codes may include HTML code and/or JavaScript , any client-side scripts. Cross-site scripting technique is carried out on websites were roughly 80% of all documented security vulnerabilities.

What is XSS?

Usually attacker encodes some part of the links in HEX, and puts this in your web page through query string. So that script can be anything and we cant predict the behavior of such attacks to the web application.

Attack example : A simple JavaScript to read cookie is added to your page and then this cookie is sent to attackers action page which records all the information in the cookie created by yuor web application.

Refer folowing url

< src="" text="< script">alert(document.cookie)< / script>"> < / iframe>

If we are using the variable $text somewhere in our page and it is not escaped then this URL will render a new iframe on the place where you are using the $text variable.
In this way you can insert any of your script in another webpages and fool the users to get important information from them. But normally in such kind of attckes user never understand that there important information is being hacked by some other application.
This is the simple thing and will not cause much damage to your sitee, but attacker can do much more than this with the help of XSS.

Other XSS attacks

Attackers may inject JavaScript, VBScript, ActiveX, HTML in webpages.
This kind of attacks are done for hacking user accounts , changing of user settings, cookie theft, or advertising.

How to prevent such attacks ?

Clensing the Query String variables is the only way you can prevent such attackers.

Clensing the Query String - PHP :
string strip_tags ( string $str [, string $allowable_tags ] )
This function tries to return a string with all HTML and PHP tags stripped from a given str.

string htmlentities ( string $string [, int $quote_style [, string $charset [, bool $double_encode ]]] )

use above functions or you can write your own function which combines all such stripping functionlities.

Contact us to solve cross site scripting issues in your site : Click Here

Fatal error Allowed memory size of 8388608 bytes exhausted

Memory management in php

Fatal error: Allowed memory size of 8388608 bytes exhausted.

sometime PHP script may returns the above error. Normally this error is generated when your script exchausted and used up the default memory requirement of 8 MB memory allocation.

* Default memory limit is set in php.ini file ( php configuration file.)
* memory_limit = 8M;

How can we manage with the memory problems comes in some php scripts?
you should check following things when such kind of memory errors occurs in your script.

1. check the default memory_limit variable in your php.ini file.
memory_limit = 8M;
you can change this memory limit and again check for the error.

a. Edit in php.ini
memory_limit = 12M;
restart the apache service.
b. code Level
@ini_set('memory_limit', '12M');
c. htaccess
php_value memory_limit 12M
___________________________________________________________________

2. If the error is not resolved after above step, then you should start debugging your code in order to find out the reason of memory limit exceed.
You have to first find out at what position in your code the memory limit is exceeding. you can use the php's built in function for this purpose.

Function description

memory_get_usage — This function returns the amount of memory allocated to PHP.

Syntax : int memory_get_usage ( true / false );

It returns the amount of memory, in bytes, that's currently being allocated to your PHP script.

Set the option to this function to TRUE to get the real size of memory allocated from system. If not set or FALSE only the memory used by emalloc() is returned.

How to use this function

1. Write this code ( echo memory_get_usage( true ); ) repeteadly after some no of lines.
2. Run it in browser
3. Compare the counts given by each echo and you can check which block of your code needs extra memory.
4. Once you identify the block of code which needs extra memory then you can start deallocating the unused memory spaces allocated by some unused variables and some infinite loops.
5. use following wherever necessary.
a. unset($var_name);
b. mysql_free_result($result_set); — Free result memory
c. Look for include("file.php") in loops, by mistake.
Just try to free the memory everywhere if the variable / array is no longer used.
6. Best of luck.


Function description

bool mysql_free_result ( resource $result )
It frees all the memory associated with the result identifier result .

install php install

This post if for all php beginners who dont know how to install php, and searching for php installation steps.

Prerequisites
In order to install and learn php on your local computer system you need php
installation and an server software as well i.e.(Apache/IIS).


First we have to install apache server and then php and mysql.
so go through following steps to install apache server on your local system.
-------------------------------------------------------------------------------------
Download the latest Win32 Binary (MSI Installer) of apache web server.
click here for apache installation

You should download following version.

Version: 2.0.55
File Name: apache_2.0.55-win32-x86-no_ssl.msi

1. Download the apache installation file i.e. apache_2.0.55-win32-x86-no_ssl.msi.
2. Double click it and start the apache installation.
3. It is a normal installation so no need of brief explanation.
4. The installation wizard will ask you some fields "Network domain", "server name", "administrators email id" etc - you can enter anything in this fields.
5. Then choose typical installation and click on next button.
6. Finish the installation.
7. Open http://localhost/ and you will see the apache test page.
8. Apache installation is done.

Apache server's configuration settings is stored in a file called httpd.conf.
This file is located at C:\Program Files\Apache Group\Apache2\conf\ directory. You have to edit this file while installing php.
_____________________________________________________________

Install PHP
On the PHP download page, click on the zip package under the Windows Binaries section to download php. CLICLK HERE FOR PHP

You should download following version.
Version: 5.1.2
File Name: php-5.1.2-Win32.zip.

-------------------------------------------------------------------------------------
Now go through following simple steps to install php.

1. Extract php-5.1.2-Win32.zip to C:\php.
2. There is one file in php directory ( php-ini-recommended.ini ).
This is a configuration file of php.
Create a copy of this php configuration file and rename it to c:\php\php.ini.
3. Now open php.ini file in any text editor which you like and do the following changes and then save it.

a)Uncomment the "include_path" on. line 505.
include_path = ".;C:\php\includes"

b)Change the "doc_root" to match your httpd.conf DocumentRoot directory. line 512.
doc_root = "C:\Program Files\Apache Group\Apache2\htdocs"

c)Change "extension_dir". Line 519.
extension_dir = "C:\php\ext"

d)Change "session.save_path" and "session.cookie_path" on
line no 939 & 958, respectively
session.save_path = "C:\Temp"
session.cookie_path = \

4. Add C:\php to your PATH System Environment Variable
a.Right-click on My Computer and choose Properties.
b.Select the Advanced tab.
c.Click Environment Variables.
d.Under System variables, select “Path” and choose Edit.
e.Move the cursor to the end of the string and add
;C:\php. A basic path will look something like the following:
%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\php
5. Click ok and finish it.

6.Open your httpd.conf file located at C:\Program Files\Apache Group\Apache2\conf\ and Append the following lines.

LoadModule php5_module "c:/php/php5apache2.dll"

AddType application/x-httpd-php .php

PHPIniDir "C:/php"


7.Add index.php to the DirectoryIndex, and then save. Line 321.
DirectoryIndex index.php index.html index.html.var

8. Restart the apache server and check that test apache page is displaying or not.

php freelancer india - freelance php development

Royads :: php freelancers india
Welcome to royads. Royads is a leading team of website designers and developrers. We are working since the last two years and have developed more than 30 websites.

We are specialized in php website development and asp website development. Our team has dedicated website designers and php freelancers from Mumbai,India. We provide all kinds of website development and web designing solutions. Our website development team is experienced in diverse type of websites such as small business websites , large e-commerce portals, shopping cart websites, auction websites and matrimonial websites. Our speciality is PHP, mysql, ASP,SQL website development.

Our team also consists of creative and skilled graphic designers who are experienced in all kinds of graphics work, such as:

Template Designing
Flash website development
Logo Designing
2D animations and walk through.



Royads Team (website developers Mumbai )
3 Php freelancers Mumbai,India.
2 Asp.NET developers from Mumbai,India.
3 Graphics designers from Mumbai,India.

Use following links for more information about Web development team India (Royads).
Typo3 php freelancer
Php development
Seo freelancer Mumbai, India.
Other Web development Services.
Sample websites details

Freelancer charges
We offer low cost web designing and development services.
Average Hourly Rate - $7
Contact freelance web designer

list-all-string-functions-in- php

PHP is very powerful server side programming language.

It has lots of powerful functions which speed up the php development and also the performance. While developing a flexible and good web application we always need list of string handling functions.There are lots of php functions and I am giving you a list of all string functions in php. Which will help you for string manipulation.

List of php string functions

addcslashes	Quote string with slashes in a C style. "Magicquotes"
Syntax : string addcslashes ( string $str , string $charlist )
bin2hex	Convert binary data into hexadecimal representation.
string bin2hex ( string $str )
chop	Alias of rtrim(). Remove white spaces from right isde of string.
chr	Return a specific character
chunk_split	Split a string into smaller chunks
string chunk_split ( string $body [, int $chunklen [, string $end ]] )
convert_cyr_string	Convert from one Cyrillic character set to another
string convert_cyr_string ( string $str , string $from , string $to )
convert_uudecode	Decode a uuencoded string
string convert_uudecode ( string $data )
convert_uuencode	Uuencode a string
string convert_uuencode ( string $data )
count_chars	Return information about characters used in a string
count_chars ( string $string [, int $mode ] )
crc32	Calculates the crc32 polynomial of a string
int crc32 ( string $str )
crypt	One-way string encryption (hashing)
echo	Output one or more strings
explode	Split a string by string. Syntax:explode('-','php-freelancer'); Return: array. php explode more details
fprintf	Write a formatted string to a stream
get_html_translation_table	Returns the translation table used by htmlspecialchars() and htmlentities()
hebrev	Convert logical Hebrew text to visual text
hebrevc	Convert logical Hebrew text to visual text with newline conversion
html_entity_decode	Convert all HTML entities to their applicable characters
htmlentities	Convert all applicable characters to HTML entities
htmlspecialchars_decode	Convert special HTML entities back to characters
htmlspecialchars	Convert special characters to HTML entities
implode	Join array elements with a string
join	Alias of implode()
levenshtein	Calculate Levenshtein distance between two strings
localeconv	Get numeric formatting information
ltrim	Strip/remove whitespace (or other characters) from the beginning of a string
md5_file	Calculates the md5 hash of a given file
md5	Calculate the md5 hash of a string
metaphone	Calculate the metaphone key of a string
money_format	Formats a number as a currency string
nl_langinfo	Query language and locale information
nl2br	Inserts HTML line breaks before all newlines in a string
number_format	Format a number with grouped thousands
ord	Return ASCII value of character
parse_str	Parses the string into variables
print	Output a string
printf	Output a formatted string
quoted_printable_decode	Convert a quoted-printable string to an 8 bit string
quotemeta	Quote meta characters
rtrim	Strip whitespace (or other characters) from the end of a string
setlocale	Set locale information
sha1_file	Calculate the sha1 hash of a file
sha1	Calculate the sha1 hash of a string
similar_text	Calculate the similarity between two strings
soundex	Calculate the soundex key of a string
sprintf	Return a formatted string
sscanf	Parses input from a string according to a format
str_ireplace	Case-insensitive version of str_replace().
str_pad	Pad a string to a certain length with another string
str_replace	Replace all occurrences of the search string with the replacement string
str_rot13	Perform the rot13 transform on a string
str_shuffle	Randomly shuffles a string
str_split	Convert a string to an array
str_word_count	Return information about words used in a string
strcasecmp	Binary safe case-insensitive string comparison
strchr	Alias of strstr()
strcmp	Binary safe string comparison
strcoll	Locale based string comparison
strcspn	Find length of initial segment not matching mask
strip_tags	Strip HTML and PHP tags from a string
stripcslashes	Un-quote string quoted with addcslashes()
stripos	Find position of first occurrence of a case-insensitive string
stripslashes	Un-quote string quoted with addslashes()
stristr	Case-insensitive strstr()
strlen	Get string length
strnatcasecmp	Case insensitive string comparisons using a "natural order" algorithm
strnatcmp	String comparisons using a "natural order" algorithm
strncasecmp	Binary safe case-insensitive string comparison of the first n characters
strncmp	Binary safe string comparison of the first n characters
strpbrk	Search a string for any of a set of characters
strpos	Find position of first occurrence of a string
strrchr	Find the last occurrence of a character in a string
strrev	Reverse a string
strripos	Find position of last occurrence of a case-insensitive string in a string
strrpos	Find position of last occurrence of a char in a string
strspn	Find length of initial segment matching mask
strstr	Find first occurrence of a string
strtok	Tokenize string
strtolower	Make a string lowercase
strtoupper	Make a string uppercase
strtr	Translate certain characters
substr_compare	Binary safe optionally case insensitive comparison of 2 strings from an offset, up to length characters
substr_count	Count the number of substring occurrences
substr_replace	Replace text within a portion of a string
substr	Return part of a string
trim	Strip whitespace (or other characters) from the beginning and end of a string
ucfirst	Make a string's first character uppercase
ucwords	Uppercase the first character of each word in a string
vfprintf	Write a formatted string to a stream
vprintf	Output a formatted string
vsprintf	Return a formatted string
wordwrap	Wraps a string to a given number of characters using a string break character