You would be shocked to come across this fact that Facebook engineers can access your Facebook account without your knowledge and above all without entering any of the required details such as Username and Password or recovery e-mail, contact phone number details. Facebook has unveiled people across the globe with an recent
Facebook Engineer’s and Employees Sneaking in to Private Facebook Accounts Recent details provided by the social network giant show who can access your Facebook account and when. There stringent actions and practices are being executed by the tech giant companies like Apple, Google and Yahoo making their services to be secured and protecting them from the hackers, law enforcement and spies agencies. Although, there is a vulnerability of personal data misuse and impersonation of your social life info which have been registered with these tech giants by some its employees.
Director of record label Anjunabeats, Paavo Siljamäki posted a captivating a brief study on his Facebook wall throwing a spotlight over this issue. Facebook post of Paavo Siljamäki states that Facebook engineers at Facebook office in LA logged into his Facebook account after his permission during his visit where he cam across a unusual incident which was Facebook engineers logged into his Facebook account without asking him for the password of his account.
Facebook User is Screwed Without Notification After Stranger Accessing Users’s Account It was a blew out of the water experience for Paavo Siljamäki, as after being logged by the Facebook engineer without facilitating the password, Facebook has failed to caution the user (Paavo Siljamäki) with any alert briefing his private Facebook profile being accessed by some strange person since the company does when any person try’s to log in to a persons Facebook account with out a proper password and username from a strange suspicious device of a different Geo-location
State-run
telecom company, BSNL, has some great news for its mobile
subscribers. In the next phase of network expansion, BSNL plans to
slash 3G network rates by 50 percent.
BSNL is one of
the most budget friendly operators in the market. They offer 3G rates
that are at par with the 2G rates of the private telecom operators.
The officials have said that they cannot reduce the rates at present
as they have utilized 90% if their allotted 3G capacity but they will
slash it as soon as they finish expansion. A sudden, drastic decrease
in 3G rates might lead to an enormous increase in traffic, so the
company wants to ascertain its capability to handle the traffic
before reducing the rates.
BSNL at
present is in its 7th network expansion phase that will cost Rs.4800
crores and is expected to be completed by June of this year. The
company has already started working on the 8th phase and will begin
the process of issuing tenders at the start of the financial year
2015-16 that begins in April.
Under phase-8
of network expansion, BSNL is planning to integrate 3G network’s
with city-wide WiFi hotspots to have a better handle on traffic. With
this process, 3G users will be able to switch automatically between
3G and WiFi networks. This will allow for the traffic to shift
to WiFi which will help free up the 3G space. This unique
approach to handling internet traffic might be good for the company
but might lead to massive battery drain for the consumers. But it
wouldn’t be much of a concern to folks who would be using the BSNL
network at 50 percent of the cost of competing networks. Hopefully,
BSNL’s initiative might encourage other telecom companies to give a
break to their subscribers from massive 3G data bills.
In this session, we will introduce you to the idea of Forms and how
they are used in HTML. You will learn about the basic tags of a HTML
Form and their attributes.
Basically, a HTML Form is used to select and process different types
of user inputs. A Form behaves typically like an interface through which
users can input different elements, e.g., texts, images etc. which in
turn HTML Server will store in a database, process them and return
results to the users.
A Form is created by using the
The basic attributes of a
Attribute Name
Attribute Value
Description
Action
The URL of the server side scripting file which recieves the user input;
it may be any .asp, .php., .jsp, ... type of file.
e.g., http://mysite.com/login/registration.php.
Performs an action with the input entered by the user in the form elemets
EncType
"application/x-www-form-urlencoded": the default value;
"multipart/form-data": used for multiple plain text form data of input element.
This attribute describes the content type that is used to submit the form to the server
Method
Get (default value), Post
It is the HTTP method for sending the form information to the
server; the GET method is used for less secured form information and the
POST method is used for more secured form information
Name
Name given to the form
Specifies a name to the form for client-side scripting
The Action Attribute
The following example will describe you how to input an information
in a form and how the action attribute works to process the information.
Here, a text field and a submit button is created by specifying the input type attribute as "text" and "submit" respectively.
When you input some text in the above text field and click on the
"Submit Query" button, your information will be sent to a file specified
as "html_form_action.asp" in the action attribute. This file will
process your data and return you a page containing the results as
user=your_name. This is not shown here as it is a server side scripting.
The Input Element
The tag is the most used form element. There are many
types of input elements which are specified by the "type" attribute,
e.g.,
Here, type of the input element is a text field which considers only text inputs as its value.
We will now describe how different types of input elements are used in HTML forms---
Text Field:
Text Field in a form allows users to input text elements like text character, numbers etc.
The browser will show the text fields as---
Here, you can insert letters, numbers etc. as text inputs.
Password Field:
Password field allows users to insert characters as password given to some element in a form.
The browser will show this as---
Here, the input type is password in the password field. You will
notice that the characters you type in the password field is visible
only as bullets or asterisks, it will not be displayed to others unlike
the username in the text field.
Create a Button in a Form:
A Button in a HTML form can be created as an input type element. By
clicking a button users request their information to be processed.
In the following example, we create just a simple button; no specific task will be performed by it.
In the browser, it looks like---
The text "Click Me!" put as the value of the button is displayed on the button in the browser.
Submit button
A Submit button can be created as an input element by specifying the
type attribute as "Submit". When an user clicks on a submit button, the
information entered in the form is submitted to the server.
Take the following example---
The browser will show this as---
After entering username and password the user clicks on a submit
button named "Login" which invokes the action attribute to submit the
data to the server.
Reset button
A Reset button is used to reset the information entered in a form
element to the default value or to change the information previously
entered.
Image as a button
We can use an image as a button. For this, the "src" attribute is
added in the input element which gives the URL of an image to be set as a
button. The type attribute is specified as "image" and the value as
"InputTypeImage".
Uploading a File:
To upload a file, we use the input type "File" element in HTML. This can be shown as below---
In the browser, it will be like ---
On clicking the "Browse..." button, you can upload a file from your
database into the server. The URL of the file will be displayed in the
text field provided.
The Hidden Input Type:
The "Hidden" input type element is used by the web authors to hide
some particular form data from the users. It is useful in carrying user
information from form to form as hidden input type for user applications
containing several HTML documents.
In the following example, the e-mailed contents of a form is specified as "hidden" input types---
The above input fields are hidden in the web browser only, they can be still viewed in the HTML document source page.
Radio Button:
A Radio button in a form is used to allow users select only one input out of a given number of options.
In the browser, it looks like---
User can select only one item at a time. Here, the vehicle "bike" is
made "checked" by default. If you select another value, it will become
unselected.
Checkboxes:
Checkboxes are used in a form to allow users select more than one input out of a given number of options.
In the browser, it looks like---
User can select more than one item at a time. Here, the vehicle "motorbike" is made "checked" by default.
The Select Element
The Select element is used in HTML forms to create a drop-down box or
a drop-down list. The Select element has three basic optional
attributes as shown in the following table -
Attribute Name
Attribute Value
Description
Name
A Unique Name
It is used to give a unique name to the drop-down list.
Size
Any Number, e.g., 1, 2, 3, ...
It is used to define the size of a drop-down list.
Multiple
Multiple
It is used to select multiple items at a time from a drop-down list.
A Simple Drop-Down List:
The following example will show how to create a simple drop-down list---
Select a Country:
Each item to be displayed in the list is written in between the option tags .
In the Browser, it will be shown as---
Select a country:
You can see the name of the countries by clicking on the list and
select any one of them you wish to. When you click another name, the
previous one will be replaced by it.
Size of a Drop-Down List:
By specifying a definite value to the "size" attribute in the select
element, we can create a drop-down list of any size. Consider the
following example -
Select a Country:
In the Browser, it will be shown as---
Select a country:
Here, name of three countries will be displayed at a time in the
list. You can make any one of the itmes of a drop-down list as
"selected" by default. In this list "India" is displayed as "selected by
default".
Multiple Selection in a Drop-Down List:
We can select more than one item at a time in a drop-down list. For
this, the value of the attribute "multiple" of the select element, is
specified as "multiple". Consider the following example -
Select a country:
In the Browser, it will be shown as---
Select a country:
Here, you can select multiple countries at a time by "Ctrl+Click" on the desired names.
If you do not specify the size in the select element for a multiple
selection, then all the items in the drop-down list will be displayed. Select a country:
Text Area
A Text Area is an area where users can write an unlimited number of
text characters. A text area is created in a form, using the
In the Browser, it will be shown as---
If you write any text in between the tags , it will be displayed in the text area by default.
DONT CONFUSE BETWEEN TH AND TD... TH ONLY BOLD THE TEXT IT TABLE HEADING.
A table can have any number of rows and cells. Attributes in a Table:
The basic attributes used in a table is described in the following table---
Attribute Name
Attribute Value
Description
BORDER
1, 2, 3, ...
It sets the border of a table to a size specified as its value.
BORDERCOLOR
Color values or Color Names
It sets the border of a table to a color specified as its value.
BGCOLOR
Color values or Color Names
It sets the background of a table to a color specified as its value. It is also used for a specific row or a specific cell.
WIDTH
100%, 50%, 25%, ... etc.
It sets the width of a table or the width of cells to a specific size.
CELLSPACING
Any Number like 10, 5, 20, ... etc.
It inserts a space between the cells of a table of a size specified as its value.
CELLPADDING
Any Number like 10, 5, 20, ... etc.
It inserts a space between the content and the border of a cell of a size specified as its value.
ALIGN
Left, Middle, Right
It aligns the contents of a cell as left, middle and right.
ROWSPAN
2, 3, ...
It divides a cell into two or more rows, e.g., two rows when rowspan="2", three rows when rowspan="3", ... and so on.
COLSPAN
2, 3, ...
It divides a cell into two or more columns, e.g., two columns when colspan="2", three columns when colspan="3", ... and so on.
The Border Attribute and Table Headings:
A table in general has a border. It is used in the opening
tag as---
We can also specify a color to a border as---
Table headings are defined by the
tag. Generally, in the
first row of a table, instead of using the
tag, the
tag is used to specify
headings in a table. A table data here corresponds to the content of
each heading.
The following example depicts a table with three rows and three
columns (i.e., three cells in each row) with table headings and a border
of size "1" with a border color Red.
First Row, First Cell (Heading 1)
First Row, Second Cell (Heading 2)
First Row, Third Cell (Heading 3)
Second Row, First Cell (Table Data)
Second Row, Second Cell (Table Data)
Second Row, Third Cell (Table Data)
Third Row, First Cell (Table Data)
Third Row, Second Cell (Table Data)
Third Row, Third Cell (Table Data)
First Row, First Cell (Heading 1)
First Row, Second Cell (Heading 2)
First Row, Third Cell (Heading 3)
Second Row, First Cell (Table Data)
Second Row, Second Cell (Table Data)
Second Row, Third Cell (Table Data)
Third Row, First Cell (Table Data)
Third Row, Second Cell (Table Data)
Third Row, Third Cell (Table Data)
Specifying Width and Bgcolor to a table:
We can specify the width of a table using the WIDTH attribute in the
opening tag of the table. Similarly, the width of a specific column can
also be specified in the
tag.
A background color can be set to a table specifying a color value or a
color name to thr BGCOLOR attribute in the
tag.
Similarly, if we use bgcolor in the
tag, all cells in the row
will be set to the corresponding color. Using bgcolor in the
we can set a color to a specific cell.
The following example illustrates the use of WIDTH and BGCOLOR in a table---
Heading 1
Heading 2
Heading 3
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Width of the following table is 75% whether the width of the first,
second, and third columns are respectively 25%, 25% and 50%. The
background color of the second row is yellow and that of the second cell
in the third row is red. The color of the remaining cells in the table
is lightblue as specified in the opening tag of the table.
Heading 1
Heading 2
Heading 3
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
The Align attribute:
The ALIGN attribute is used to align the content of a cell as left,
middle and right. For instance, if we set Align="right" in a
tag, contents of all the cells in that row will be aligned as right. If
we set Align="middle" in a
, the content of that particular
cell will be aligned as middle. However, the default alignment of the
table data within a cell is left. The default alignment of the contents
of a table heading is middle.
The ALIGN attribute is also used in the opening tag of a table to
align the table as left, right or middle in a page. The default
alignment in this case is left.
Let us take the following example---
Heading 1
Heading 2
Heading 3
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Heading 1
Heading 2
Heading 3
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
In this example, the table is aligned middle in the page. The first
heading is aligned left. The contents of the cells in the second row is
aligned right. The content of the second cell of the third row is
aligned middle whether the contents of the remaining cells in the table
is aligned left by default. Cellspacing and Cellpadding:
CELLSPACING is used in a table to insert a space between the cells. Table without CELLSPACING:
Data 1
Data 2
Data 3
Data 4
Data 1
Data 2
Data 3
Data 4
Table with a CELLSPACING of 10:
Data 1
Data 2
Data 3
Data 4
Data 1
Data 2
Data 3
Data 4
Table with a CELLSPACING of 0:
Data 1
Data 2
Data 3
Data 4
Data 1
Data 2
Data 3
Data 4
CELLPADDING in a table is used to insert a white space between the content and the border of the cells. Table without CELLPADDING:
Data 1
Data 2
Data 3
Data 4
Data 1
Data 2
Data 3
Data 4
Table with a CELLPADDING of 10:
Data 1
Data 2
Data 3
Data 4
Data 1
Data 2
Data 3
Data 4
Rowspan and Colspan:
(i) ROWSPAN is used in a table to divide a cell into two or more rows. A Table with ROWSPAN 2:
Student Name
X
Subjects
Physics
Maths
Student Name
X
Subjects
Physics
Maths
(ii) COLSPAN is used in a table to divide a cell into two or more columns. A Table with COLSPAN 2:
In this session, you will learn more things on HTML. You will learn
about the uses of some elements in HTML with a description of their
attributes through examples. This includes---
Lists
Images
Background
Colors
Tables
Frames
Lists
In the previous session, we discussed briefly about the uses of
different types of list in HTML. Now we will give you an idea about some
of their basic attributes used. Unordered List:
In an unordered list, the items are listed in an unordered fashion.
Basically, in an unordered list, two main attributes are used, viz., ID
and TYPE. The following table gives the description of these
attributes---
Attribute Name
Attribute Value
Description
ID
ID Name
ID describes the identity of the list
TYPE
Circle, Square, Disc
Type of list, i.e., Circle bulleted, Square bulleted
or Disc bulleted list
The following example will help you know about different types of unordered list---
A Circle Bulleted List: List of some fruits
Apple
Mango
Orange
A Square Bulleted List: List of some fruits
Apple
Mango
Orange
A Disc Bulleted List: List of some fruits
Apple
Mango
Orange
A Circle Bulleted List: List of some fruits
Apple
Mango
Orange
A Square Bulleted List: List of some fruits
Apple
Mango
Orange
A Disc Bulleted List: List of some fruits
Apple
Mango
Orange
However, if you don't specify any type in an unordered list, the default type will be disc bullets. Ordered List:
In an ordered list, items are listed in an orderly fashion. Like an
unordered list, an ordered list also has the basic attributes ID and
TYPE. Following table gives the description of the attributes of an
ordered list---
Attribute Name
Attribute Value
Description
ID
ID Name
ID describes the identity of the list
TYPE
Numbers: 1, 2, 3,...
Alphabets: A, B, C,... and a, b, c,...
Roman Letters: I, II, III,... and i, ii, iii,...
Type of list, i.e., the items are ordered in the list
according to Numbers, Alphabets or Roman Letters
START
1, 2, 3, ...
It is any Number assigned to the first item of the list
Following examples explain different types of ordered list---
A Numbered List: List of some vehicles
Motorbike
Car
Bus
Another Numbered List starting from the value "5": List of some vehicles
Motorbike
Car
Bus
A Capital Alphabet-ordered List: List of some vehicles
Motorbike
Car
Bus
A Lowercase Roman Letter-ordered List: List of some vehicles
Motorbike
Car
Bus
A Numbered List: List of some vehicles
Motorbike
Car
Bus
Another Numbered List starting from the value "5": List of some vehicles
Motorbike
Car
Bus
A Capital Alphabet-ordered List: List of some vehicles
Motorbike
Car
Bus
A Lowercase Roman Letter-ordered List: List of some vehicles
Motorbike
Car
Bus
However, if you don't specify any type in an ordered list, the default type will be Numbers. Definition List:
A Definition List is a type of list which gives a description about
some items. A definition list don't have a type attribute. Following is
an example of a definition list---
A Definition List:
Motorbike
A type of vehicle
Orange
A type of fruit
Tea
A type of hot drink
A Definition List:
Motorbike
A type of vehicle
Orange
A type of fruit
Tea
A type of hot drink
Here,
is Definition List tag,
is Definition Term &
is Definition Data.
Images
In the previous session, we discussed about some of the attributes of
an image. Here, you will learn about some more of them. Use of images
in HTML for web site development is very much important. It enhances the
visual display content of a web page. Basically, an image is a JPEG or a
GIF file.
Following table describes some important attributes of an image used in HTML---
Attribute Name
Attribute Value
Description
SRC
"Location Path" or the "Address"
or the "URL" of the image
It describes directory path of the location of
an image file. To display an image
in a web page the SRC attribute is used.
WIDTH
Width of an image, e.g., 100 pixels (100px), 80px, ...
It sets the image to a size of definite width
HEIGHT
Height of an image, e.g., 100px, 80px, ...
It sets the image to a size of definite height
ALT
A short description of the image,
e.g., "image of a boy" or "image of
a house" ... etc.
ALT attribute is used to give a short
description of an image when it is
not loaded in a page due to some reason
BORDER
1, 2, 3, ...
It sets a border to an image.
Greater the value of the BORDER,
thicker is the border of the image.
ALIGN
Left, middle, Right
It aligns an image to the Left, Middle or Right in a web page.
VSPACE
1, 2, 3, ...
It is used to insert a vertical space between
the image and any object above & below of it.
HSPACE
1, 2, 3, ...
It is used to insert a horizontal space between
the image and any object left & right of it.
See the following example.
It is an image of height 100px and width 150px with a border of size 1. It is aligned right in the page.
The text in the "alt" attribute is displayed when you place
the mouse cursor over the image. But in some browsers, in doesn't work.
In the above example, we can insert a vertical space between the
image and the text above and below of it. For this, we assign a certain
value to the attribute VSPACE as follows---
It is an image of height 100px and width 150px with a border of size 1. It is aligned left by default in the page.
A vertical space has been inserted between the image and the text above and below of it.
Similarly, a horizontal space can be inserted between an image and any object left and right of it by using "HSPACE" attribute.
It is an image of height 100px andwidth 150px with a border of size 1.
Background
In HTML, the background of a web page can be set to any color or any image. The background attributes are shown in the
following table---
Attribute Name
Attribute Value
Description
BGCOLOR
Color Values, e.g., #ADD8E6, #E0FFFF,...
Color Names, e.g., LightBlue, LightCyan,...
It sets the background to the color specified as its value
BACKGROUND
Source of an image
It sets the background to the image specified as its value
These attributes are used in the Opening Tag of the Body element to set a background to a web page.
Here, we will introduce you to the basics of HTML. HTML stands for Hyper Text Markup Language. Using HTML we can create a Web Page which can be viewed through a Web Browser over Internet.
HTML describes the contents of a web page with Markup Tags. Tags are
defined by angle brackets <>. <> is called the Opening Tag or the Start Tag. The Closing Tag or the End Tag is defined as </>. The whole HTML document is enclosed in between the opening tag and the closing
tag. An HTML file has a .html or .htm extension.
The General Structure of an HTML document
When you will open a web browser and going to the View option of the
Menu bar click to view the source code of the web page, you will see the
general structure of the HTML document. At the start of the document,
you will find the declaration of the HTML Version being used.
An HTML document is divided mainly into two parts- Head and Body. The Head element contains the Title of the Page
which is written in between ... tags. The
Title of the Page will be shown in the Header of the Web Page.
The second part is the Body Element. This is the most important part
of the HTML document. The Body element contains all the contents to be
displayed in a web page (texts, images etc.). Below here is the General Structure of an HTML document---
"http://www.w3.org/TR/html4/loose.dtd">
...... Version of HTML
...... Opening of the HTML document
...... Opening tag of the Head
My Home Page ...... Title of the document
...... Closing Head tag
...... Start of the Body
............................
........Contents of the body
which may contain various kind
..............
of elements like text, image, link etc
................................................................
...... End of the Body element
...... End of the HTML document
Basic Elements of a Body and their Attributes
The following Basic elements are used in a body that describe the contents of the body---
Headings
Paragraph
Formatting Elements
Emphasized word
Image
Anchor
Lists
Each element has some properties or characteristics. These are referred to as attributes. An attribute has a specific value.
HTML Headings
In HTML, six types of headings are used, viz, H1, H2, H3, H4, H5 and H6.
Headings are important in maintaining the flow of the contents, i.e.,
the hierarchical structure of the document. H1 is the most important and
H6 is the least important heading.
Each heading has an Opening tag and a Closing tag. The use of headings can be shown as below---
This is the first heading
This is the second heading
This is the third heading
This is the fourth heading
This is the fifth heading
This is the sixth heading
In the browser, it will become like this---
This is the first heading
This is the second heading
This is the third heading
This is the fourth heading
This is the fifth heading
This is the sixth heading
The format of the text in each heading is defined as default by HTML itself.
Paragraph
Paragraphs in an HTML page are encoded within and
tags. However, the end tag is optional. The space between two
paragraphs are automatically specified in HTML. We can insert a line
break at any point of the document by using a
tag.
Look at the follwing example---
This is my first paragraph.
This is another paragraph. This will give you
an introduction of HTML.
The display in the web page will be as---
This is my first paragraph.
This is another paragraph. This will give you
an introduction of HTML.
Formatting Elements
There are three basic formatting elements used in HTML to make a text Bold, Italic and Underlined.
To make a text bold, and tags are used.
To make a text italic, and tags are used.
To make text underlined, and tags are used.
For example, This text is bold. This text is italic. This text is underlined
The result will be---
This text is bold. This text is italic. This text is underlined.
An Emphasized Word
To add emphasis to a word or a group of words, we use the tag.
For example,
This is a very interestinglesson.
This is a very interesting lesson.
Image
Images are often used in a web page. To add an image in HTML, we use
the tag. The path of the location of the image is written in
the "src" attribute. If the image is located in the same folder as the
web page then only the name of the image file is included. We can also
format the size of an image by specifying its width & height.
Take the following example:
This is an image with size of width 100px and height 80px.
The ALT attribute of an image:
The Alt attribute is used to give a short description of an image in
case the image is not loaded in the web page due to some reason.
Here, in place of the image the text is displayed contained in the alt attribute of the image.
Go to Roseindia
On clicking the above link, the Roseindia Home Page will be open.
Lists in HTML
Three different types of lists are used in HTML. Unorderd list, Ordered list and Definition list.
(i) Unordered list is one in which the listing of the items is
unordered. The
tag defines an Unordered list and items are
described by the
tag. The Bullets appear as the default style
in an Unordered list. We can also specify the style format as "circle"
or "square" in the type attribute.
For example, List of some fruits:
Apple
Banana
Orange
Mango
List of some fruits:
Apple
Banana
Orange
Mango
(ii) Similarly, an Ordered list is defined by tag.
For example, List of some vehicles:
Bicycle
Motorbike
Car
Bus
List of some vehicles:
Bicycle
Motorbike
Car
Bus
1,2,3,....is the default ordering style (type="1") in an Ordered
list. The type of ordering can be changed by specifying the value of the
type attribute as "i" for Roman, "A" for alphabets etc.
(iii) A Definition list is one in which definition or
description of the items are given. A Definition list is defined by
tag. The items are encoded in
(defintion term) tag and the description of the items are encoded in
introduction The addslashes()
function is used to add backslashes [\] to data submitted from your
forms. This keeps the input MySQL (and other coding languages) friendly.
What this means is that addslashes() would change: I'm Vinod to: I\'m Vinod This function controls SQL injection; in other words you pass a special character, for example: $fname = $_POST[fname]; $sql="insert into user(fname) value($fname)"; x=(fname)value('Ram's'); This
form is called SQL injection. Already (Magic_Quates_GPC)= On otherwise
go to PHP ini setting GPC means G for GET, P for POST, and C for
COOKIES. Syntax
addslashes($string_data)
Example
php
$x="ram's"." "." ";
echoaddslashes($x);
?>
php
$str="Who's vinod?"." "." ";
echo $str . " This is not safe in a database query. "." ";
echoaddslashes($str) . " This is safe in a database query.";
?>
Output
The stripslashes() function
is used to remove backslashes from data. One use of this function is to
display data that addslashes() has been applied to. What this means is
that stripslashes() would change:
I\'m very Powerful
into:
I'm very powerful
Using stripslashes() after mysql_real_escape_string
Syntax
stripslashes(string)
Note This function can be used to clean up data retrieved from a database or from an HTML form.
I
have been reading most recently about prevention of SQL injection and I
am trying to develop some sense of understanding among the various
functions so that I can learn the basics.
I
have read about mysql_real_escape_string and I understand that it is
basically escaping characters which it deems "special" so that it is not
confused for SQL syntax?
Example
php
$said='Who said \"Live long and prosper\"?'." "." ";
ntroduction The addslashes()
function is used to add backslashes [\] to data submitted from your
forms. This keeps the input MySQL (and other coding languages) friendly.
What this means is that addslashes() would change: I'm Vinod to: I\'m Vinod This function controls SQL injection; in other words you pass a special character, for example: $fname = $_POST[fname]; $sql="insert into user(fname) value($fname)"; x=(fname)value('Ram's'); This
form is called SQL injection. Already (Magic_Quates_GPC)= On otherwise
go to PHP ini setting GPC means G for GET, P for POST, and C for
COOKIES. Syntax
addslashes($string_data)
Example
php
$x="ram's"." "." ";
echoaddslashes($x);
?>
php
$str="Who's vinod?"." "." ";
echo $str . " This is not safe in a database query. "." ";
echoaddslashes($str) . " This is safe in a database query.";
?>
Output
The stripslashes() function
is used to remove backslashes from data. One use of this function is to
display data that addslashes() has been applied to. What this means is
that stripslashes() would change:
I\'m very Powerful
into:
I'm very powerful
Using stripslashes() after mysql_real_escape_string
Syntax
stripslashes(string)
Note This function can be used to clean up data retrieved from a database or from an HTML form.
I
have been reading most recently about prevention of SQL injection and I
am trying to develop some sense of understanding among the various
functions so that I can learn the basics.
I
have read about mysql_real_escape_string and I understand that it is
basically escaping characters which it deems "special" so that it is not
confused for SQL syntax?
Example
php
$said='Who said \"Live long and prosper\"?'." "." ";
Introduction You
can create a random string in PHP using the PHP built-in rand function.
It might be for a complex password, a verification code, or something
for developing. Basically it is used when you want to save time, in
other words saving your manual process time, nothing more. In the
following I present a simple way to create a random string in PHP
step-by-step.
Step 1
Create a PHP rand_string function First, you can create a PHP function with one (1) parameter specifying the length.
function rand_string ($length){...body}
It is used to generate a random string.
Step 2
Take a Variable After that you can use a string variable with the name of char.
It
contains a collection of various types of strings. When a function
generates a random string, all of the characters are fetched from it.
Step 3 We
will refer to parts of this String using a random generator. Once we
generate a random integer index, we add the corresponding character –
the character at that index – to a finished String. This can be
completed using a loop:
Here, in place of the image the text is displayed contained in the alt attribute of the image.
