Explore topic-wise InterviewSolutions in .

The session SUPPORT can be turned on automatically at the SITE level, or manually in each PHP PAGE script:

• Turning on session support automatically at the site level: SET session.auto_start = 1 in php.ini.
• Turning on session support manually in each page script: Call session_start() function.

The session support can be turned on automatically at the site level, or manually in each PHP page script:

REPLY-to: Reply-to is where to DELIVERY the reply of the MAIL.

RETURN-path: Return path is when there is a mail delivery failure occurs then where to delivery the failure notification.

Reply-to: Reply-to is where to delivery the reply of the mail.

Return-path: Return path is when there is a mail delivery failure occurs then where to delivery the failure notification.

TRY this: /HREF=”([^"]*)”/i

Try this: /href=”([^"]*)”/i

There are 2 ways to show some part of a TEXT in red:

1. USING HTML tag <FONT color=”red”>
2. Using HTML tag <span style=”color: red”>

There are 2 ways to show some part of a text in red:

CASE STUDIO
SMART DRAW

Case Studio
Smart Draw

Reset a cookie by specifying expire TIME in the PAST:
EXAMPLE: setcookie(’Test’,$i,time()-3600); // already EXPIRED time
Reset a cookie by specifying its name only Example: setcookie(’Test’);

Reset a cookie by specifying expire time in the past:
Example: setcookie(’Test’,$i,time()-3600); // already expired time
Reset a cookie by specifying its name only Example: setcookie(’Test’);

For this PURPOSE, you can FIRST read the data from one SERVER into session variables. Then connect to other server and simply insert the data into the database.

For this purpose, you can first read the data from one server into session variables. Then connect to other server and simply insert the data into the database.

Session depends on BROWSER. If browser is closed then session is lost. The session DATA will be DELETED after session time out. If connection is lost and you RECREATE connection, then session will continue in the browser.

Session depends on browser. If browser is closed then session is lost. The session data will be deleted after session time out. If connection is lost and you recreate connection, then session will continue in the browser.

DESCRIBE table_name;

DESCRIBE table_name;

DATABASE NAME: 64 CHARACTERS
Table name: 64 characters
COLUMN name: 64 characters

Database name: 64 characters
Table name: 64 characters
Column name: 64 characters

CRYPTO usage in PHP is SIMPLE, but that doesn’t mean it’s free. First off, depending on the data that you’re ENCRYPTING, you might have reasons to store a 32-bit value in the database INSTEAD of the 160-bit value to save on space. Second, the more secure the crypto is, the longer is the computation time to DELIVER the hash value. A high volume site might be significantly slowed down, if frequent md5() generation is required.

Crypto usage in PHP is simple, but that doesn’t mean it’s free. First off, depending on the data that you’re encrypting, you might have reasons to store a 32-bit value in the database instead of the 160-bit value to save on space. Second, the more secure the crypto is, the longer is the computation time to deliver the hash value. A high volume site might be significantly slowed down, if frequent md5() generation is required.

ANSWER : $text = “MAILTO:info@wisdomjobs.com.com?subject=Feedback”; preg_match(’|.*@([^?]*)|’, $text, $output); echo $output[1];

Note that the SECOND index of $output, $output[1], GIVES the match, not the first one, $output[0].

Note that the second index of $output, $output[1], gives the match, not the first one, $output[0].

$formatted = ucwords(”FYICENTER IS COLLECTION OF INTERVIEW QUESTIONS”);
print $formatted;

What will be printed is FYICENTER IS COLLECTION OF INTERVIEW QUESTIONS.

ucwords() makes every FIRST letter of every word CAPITAL, but it does not lower-case anything else. To avoid this, and get a PROPERLY formatted string, it’s worth USING strtolower() first.

$formatted = ucwords(”FYICENTER IS COLLECTION OF INTERVIEW QUESTIONS”);
print $formatted;

What will be printed is FYICENTER IS COLLECTION OF INTERVIEW QUESTIONS.

ucwords() makes every first letter of every word capital, but it does not lower-case anything else. To avoid this, and get a properly formatted string, it’s worth using strtolower() first.

The FIRST ONE is OCTAL 23, the SECOND is HEX 23.

The first one is octal 23, the second is hex 23.

Because inside the single quotes the \n character is not INTERPRETED as NEWLINE, just as a SEQUENCE of TWO characters – \ and n.

Because inside the single quotes the \n character is not interpreted as newline, just as a sequence of two characters – \ and n.

When we submit a FORM, which has the GET method it displays pair of name/value used in the form at the address bar of the BROWSER preceded by url. Post method doesn’t display these VALUES.

When we submit a form, which has the GET method it displays pair of name/value used in the form at the address bar of the browser preceded by url. Post method doesn’t display these values.

5, it’s a REFERENCE to EXISTING VARIABLE.

5, it’s a reference to existing variable.

In MySQL, the default table type is MYISAM.

Each MyISAM table is stored on disk in THREE FILES. The files have names that BEGIN with the table name and have an extension to INDICATE the file type.

The ‘.frm’ file stores the table definition.

The data file has a ‘.MYD’ (MYData) extension.

The index file has a ‘.MYI’ (MYIndex) extension,

In MySQL, the default table type is MyISAM.

Each MyISAM table is stored on disk in three files. The files have names that begin with the table name and have an extension to indicate the file type.

The ‘.frm’ file stores the table definition.

The data file has a ‘.MYD’ (MYData) extension.

The index file has a ‘.MYI’ (MYIndex) extension,

In this EXAMPLE it wouldn’t matter, SINCE the variable is all by itself, but if you were to print SOMETHING like “{$a},000,000 mln dollars”, then you definitely NEED to use the braces.

In this example it wouldn’t matter, since the variable is all by itself, but if you were to print something like “{$a},000,000 mln dollars”, then you definitely need to use the braces.

PHP INTERPRETER TREATS numbers beginning with 0 as octal. LOOK at the similar PHP interview QUESTIONS for more NUMERIC problems.

PHP Interpreter treats numbers beginning with 0 as octal. Look at the similar PHP interview questions for more numeric problems.

There are many ways to accomplish the security tasks but the most common 7 ways are

1. Validate Input. Never trust your user and always filter input before taking it to any operation.
2. Provide access control.
3. SESSION ID protection
4. PREVENTING Cross Site Scripting (XSS) FLAWS
5. SQL injection vulnerabilities.
6. TURNING off error reporting and exposing to the site for hackers. Instead use log file to catch exceptions
7. Effective DATA handling

There are many ways to accomplish the security tasks but the most common 7 ways are

When PHP is used on a Web server to HANDLE a HTTP request, it converts information submitted in the HTTP request as PREDEFINED variables:

• $_GET - Associate ARRAY of variables submitted with GET method.
• $_POST - Associate array of variables submitted with POST method.
• $_COOKIE - Associate array of variables submitted as cookies.
• $_REQUEST - Associate array of variables from $_GET, $_POST, and $_COOKIE.
• $_SERVER - Associate array of all information from the server and the HTTP request.

When PHP is used on a Web server to handle a HTTP request, it converts information submitted in the HTTP request as predefined variables:

ANSWER : $_GET[] and $_REQUEST[]

A namespace is a CONTAINER and allows you to bundle up all your functionality using a unique name. In JavaScript, a namespace is REALLY just an OBJECT that you’ve attached all further methods, properties and OBJECTS. But it is not ALWAYS necessary to use namespace.

A namespace is a container and allows you to bundle up all your functionality using a unique name. In JavaScript, a namespace is really just an object that you’ve attached all further methods, properties and objects. But it is not always necessary to use namespace.

The float PROPERTY SETS where an image or a text will APPEAR in ANOTHER ELEMENT.

The float property sets where an image or a text will appear in another element.

Both of them are OPEN SOURCE software (so free of COST), support CROSS platform. PHP is faster then ASP and JSP.

Both of them are open source software (so free of cost), support cross platform. php is faster then ASP and JSP.

In MYSQL, the default table type is MyISAM. Each MyISAM table is stored on disk in three files. The files have NAMES that begin with the table name and have an extension to indicate the file type.

The ‘.frm’ file stores the table DEFINITION. The data file has a ‘.MYD’ (MYData) extension. The index file has a ‘.MYI’ (MYIndex) extension,

In MySql, the default table type is MyISAM. Each MyISAM table is stored on disk in three files. The files have names that begin with the table name and have an extension to indicate the file type.

The ‘.frm’ file stores the table definition. The data file has a ‘.MYD’ (MYData) extension. The index file has a ‘.MYI’ (MYIndex) extension,

The ‘.frm’ file STORES the table DEFINITION.
The data file has a ‘.MYD’ (MYData) EXTENSION.
The INDEX file has a ‘.MYI’ (MYIndex) extension.

The ‘.frm’ file stores the table definition.
The data file has a ‘.MYD’ (MYData) extension.
The index file has a ‘.MYI’ (MYIndex) extension.

DESCRIBE Table-Name;

describe Table-Name;

You can maintain two SEPARATE LANGUAGE file for each of the language. all the LABELS are put in both language files as variables and assign those variables in the PHP source. on runtime choose the REQUIRED language option.

You can maintain two separate language file for each of the language. all the labels are put in both language files as variables and assign those variables in the PHP source. on runtime choose the required language option.

CASE STUDIO

SMART DRAW

Case Studio

Smart Draw

bool is_numeric ( MIXED var) Returns TRUE if var is a number or a numeric string, FALSE otherwise.or use isNaN(mixed var)The isNaN() function is USED to check if a VALUE is not a number.

bool is_numeric ( mixed var) Returns TRUE if var is a number or a numeric string, FALSE otherwise.or use isNaN(mixed var)The isNaN() function is used to check if a value is not a number.

THOUGH i am not sure if this is wrong or not, With the exif extension you are ABLE to WORK with IMAGE META data.

Though i am not sure if this is wrong or not, With the exif extension you are able to work with image meta data.

2 ways

1. SIZEOF($urarray) This FUNCTION is an ALIAS of COUNT()
2. count($urarray)

2 ways

• GET/QueryString
• POST

• first of all instead of USING SELECT * from table1, use select column1, column2, column3.. from table1
• Look for the opportunity to introduce INDEX in the table you are querying.
• use LIMIT keyword if you are LOOKING for any specific number of rows from the result set.

By default the MAXIMUM size is 2MB. and we can change the FOLLOWING SET up a php.iniupload_max_filesize = 2M

By default the maximum size is 2MB. and we can change the following set up a php.iniupload_max_filesize = 2M

By USING $_SERVER['HTTP_USER_AGENT'] VARIABLE.

By using $_SERVER['HTTP_USER_AGENT'] variable.

To KNOW the IMAGE type use exif_imagetype ()
function To know the Image SIZE use getimagesize ()
function To know the image WIDTH use imagesx ()
function To know the image height use imagesy() function t

To know the Image type use exif_imagetype ()
function To know the Image size use getimagesize ()
function To know the image width use imagesx ()
function To know the image height use imagesy() function t

Sometimes a function is best shared AMONG a number of DIFFERENT classes. Such functions can be declared either as member functions of one class or as global functions. In either case they can be set to be friends of other classes, by USING a friend specifier in the class that is admitting them. Such functions can use all ATTRIBUTES of the class which names them as a friend, as if they were themselves members of that class.

A friend declaration is essentially a prototype for a member function, but instead of requiring an implementation with the name of that class attached by the double colon syntax, a global function or member function of another class provides the match.

Sometimes a function is best shared among a number of different classes. Such functions can be declared either as member functions of one class or as global functions. In either case they can be set to be friends of other classes, by using a friend specifier in the class that is admitting them. Such functions can use all attributes of the class which names them as a friend, as if they were themselves members of that class.

A friend declaration is essentially a prototype for a member function, but instead of requiring an implementation with the name of that class attached by the double colon syntax, a global function or member function of another class provides the match.

One of the main advantages of programming is its ease of MODIFICATION; objects can easily be modified and added to a system there by reducing maintenance costs.

programming is also CONSIDERED to be better at MODELING the real world than is procedural programming. It ALLOWS for more complicated and flexible interactions.

systems are also EASIER for non-technical personnel to understand and easier for them to participate in the maintenance and enhancement of a system because it appeals to natural human cognition patterns. For some systems, an approach can speed development time since many objects are standard across systems and can be reused. Components that manage dates, shipping, shopping carts, etc. can be purchased and easily modified for a specific system

One of the main advantages of programming is its ease of modification; objects can easily be modified and added to a system there by reducing maintenance costs.

programming is also considered to be better at modeling the real world than is procedural programming. It allows for more complicated and flexible interactions.

systems are also easier for non-technical personnel to understand and easier for them to participate in the maintenance and enhancement of a system because it appeals to natural human cognition patterns. For some systems, an approach can speed development time since many objects are standard across systems and can be reused. Components that manage dates, shipping, shopping carts, etc. can be purchased and easily modified for a specific system

All of those are open source resource. SECURITY of Linux is very very more than WINDOWS. APACHE is a better SERVER that IIS both in functionality and security. MySQL is world most popular open source database. PHP is more faster that asp or any other SCRIPTING language.

All of those are open source resource. Security of Linux is very very more than windows. Apache is a better server that IIS both in functionality and security. MySQL is world most popular open source database. PHP is more faster that asp or any other scripting language.

In PHP.ini FILE: SET short_open_tag=on to MAKE PHP SUPPORT

In php.ini file: set short_open_tag=on to make PHP support

You can FIND these SPECIFIC INFORMATION in PHP MANUAL.

You can find these specific information in PHP Manual.

Total 5 types of tables we can create

1. MyISAM
2. Heap
3. MERGE
4. INNO DB
5. ISAM

MyISAM is the DEFAULT storage ENGINE as of MYSQL 3.23 and as a result if we do not specify the table name EXPLICITLY it will be assigned to the default engine.

Total 5 types of tables we can create

MyISAM is the default storage engine as of MySQL 3.23 and as a result if we do not specify the table name explicitly it will be assigned to the default engine.

You can do it by 4 WAYS

1. mysql_fetch_row.
2. mysql_fetch_array
3. mysql_fetch_object
4. mysql_fetch_assoc

You can do it by 4 Ways

Rasmus Lerdorf is known as the FATHER of PHP. PHP/FI 2.0 is an early and no LONGER supported version of PHP. PHP 3 is the SUCCESSOR to PHP/FI 2.0 and is a lot nicer. PHP 4 is the current generation of PHP, which uses the Zend ENGINE under the hood. PHP 5 uses Zend engine 2 which, among other things, offers many additional OOP features

Rasmus Lerdorf is known as the father of PHP. PHP/FI 2.0 is an early and no longer supported version of PHP. PHP 3 is the successor to PHP/FI 2.0 and is a lot nicer. PHP 4 is the current generation of PHP, which uses the Zend engine under the hood. PHP 5 uses Zend engine 2 which, among other things, offers many additional OOP features