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Submit Button
How can we submit a form without a submit button?
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PHP header function
Use of header() function in php
sandeshk
- May 15th, 2009
The header() function sends a raw HTTP header to a client.We can use herder() function for redirection of pages. It is important to notice that header() must be called before any actual output is seen.
anees_muhd
- Oct 24th, 2008
The main use of header() is to send header information into client machine and its one of the use is Page redirect we have a lot of directives for this function for Eg. LocationIf we use Location dire...
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File Upload
How to upload files using PHP?
Raghavaiah
- Nov 6th, 2008
<html> <body> <form action="upload_file.php" method="post" enctype="multipart/form-data"> <label for="file">Filename:</label> <...
dev_002
- Oct 14th, 2008
You can upload file via HTML form by connecting PHP file with it.codes on HTML side<form action="uploadmanager.html" enctype="multipart/form-data" method="post">Nam...
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PHP5 New Features
What are new features that are in added in PHP5?
abc
- Sep 12th, 2011
PHP5 improve object oriented feature oh PHP4 & work as some languages like java ..eg. try/catch & exception handling
manoj.sinha84
- Jul 30th, 2009
PHP5----Strong OOPS support 1) Data Encapsulation (public, private, protect visibility for member variables and methods) 2) Concepts like Abstraction, Inheritance, Reflections(reverse engineer...
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Increase Execution Time
How will you increase execution time of PHP for processing large set of records?
srera11
- Jun 24th, 2010
set_time_limit() function will limits the maximum execution time.When called, set_time_limit() restarts the timeout counter from zero. In other words, if the timeout is the default 30 seconds, and 25 ...
sandipk
- Feb 8th, 2010
To increase the execution time runtime, we can use the ini_set() function.e.g.ini_set('max_execution_time','-1'); - it sets maximum execution time to infinity.
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How we know browser properties
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Editorial / Best Answer
bicu- Member Since Sep-2005 | Mar 3rd, 2006
get_browser() attempts to determine the capabilities of the user's browser. This is done by looking up the browser's information in the browscap.ini file.
echo $_SERVER['HTTP_USER_AGENT'] . "<hr />\n";
$browser = get_browser();
foreach ($browser as $name => $value) {
echo "<b>$name</b> $value <br />\n";
}naveen gautam
- Dec 24th, 2011
$_SERVER[HTTP_USER_AGENT]; by this method we can know the properties of browser.
abc
- Sep 12th, 2011
Code- span style="color: #0000ff;">'HTTP_USER_AGENT'] . "
- ";
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How i can get ip address
Deepak Radhakrishnan
- Feb 14th, 2007
$_SERVER['REMOTE_ADDR'] works for most of the web hosting sites like godaddy.
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What is differenc between mysql_connect and mysql_pconnect
ashish.gijare
- Feb 18th, 2009
When we use mysql_connect every time we have to make connection when every time page is loaded but when we use mysql_pconnect it does not have make connection every time.
manas ranjan dikhit
- May 31st, 2007
Mysql_connect? establish a new connection every time when it connect to database but mysql_pconnect first searches if there is pre-existing connection or not. if it found connection then it make use of that connection to databases.
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How to add multiple categories through PHP?
abc
- Sep 12th, 2011
Select c.id, m.catogory_name from catogorymaster m, child c where m.catid = c.id;
Dallas Caley
- Mar 22nd, 2011
It depends on how those categories are going to be laid out. if a category will only ever have one parent category and multiple sub-categories then you could use a nested set architecture (where...
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Store Image in MySQL
How to store image in MySQL database via PHP?
abc
- Sep 12th, 2011
"php $iname=$_FILES['img1']['name']; $fp=fopen($_FILES['img1']['tmp_name'],r); $con=fread($fp,filesize($_FILES['img1']['tmp_name'])); mysql_connect("localh...
themostwanted
- Oct 13th, 2010
$iname=$_FILES['img1']['name']; $fp=fopen($_FILES['img1']['tmp_name'],r); $con=fread($fp,filesize($_FILES['img1']['tmp_n...
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Session Cache Expire
If sesio_cache_expire is not set than in how much time will it expire? a. 1 hour,b. 2 hours,c. 3 hours,d. 4 hours
abc
- Sep 12th, 2011
3 hrs
Sagar Awasthi
- May 5th, 2011
By default Session Cache Expire will expire in 180 minutes i.e. 3 hrs and if u wanna set it then use the lines below: session_cache_expire(30);The above example will set the cache expire to 30 minutes
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Array Comparison
While comparing two array what is the difference between === and ==?
abc
- Sep 12th, 2011
Use ==
G. Pradeep Jain
- Jun 8th, 2011
Please correct you question title to just "COMPARISON"...== is for general comparision=== is for comparision with out type conversion
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How do you know (status) whether the recipent of your mail had opened the mail i.e read the mail?
Vineet
- Sep 6th, 2007
If user's email client is blocking images by default(yahoo mail, gmail) then this method is not reliable.
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What are the types of errors in PHP?
abc
- Sep 12th, 2011
1. Notices: These are trivial, non-critical errors that PHP encounters while executing a script - for example, accessing a variable that has not yet been defined. By default, such errors are not displ...
mrudul.ce
- Dec 4th, 2010
Different type of errors are as following: 1. E_ERROR : Fatal run-time errors. 2. E_WARNING : Run-time warning. 3. E_PARSE : Compile time parse error. 4. E_NOTICE : Run time notice. 5. E_COR...
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Calling C Function
How to call a C function within PHP?
abc
- Sep 12th, 2011
This is not strictly true.
PHP has many native functions that have the same name as C functions, and which act in similar ways, but they are not C functions, they are PHP functions.nigenet
- Apr 21st, 2009
This is not strictly true.PHP has many native functions that have the same name as C functions, and which act in similar ways, but they are not C functions, they are PHP functions.
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Database Connectivity in Joomla
How will you connect to the Database using Joomla?
rubin2008
- May 16th, 2010
Connection can be made to database in joomla by specifying database parameter information such as host,mysqlusername and mysql password into configuration file of joomla
technicalsathish
- Mar 23rd, 2009
What Vikas said is absolutely Correct. In Joomla there is no need to write the code for
database connectivityIf we hosted the site local into web, we have to change the configuration.php
fileIn that we have to mention the database username and password details.
CheersRegards,Sathish -
PHP Form Hijacking
How to prevent form hijacking in PHP?
rubin2008
- May 16th, 2010
To prevent form hijacking(1) Escape data which is being passed into sql query using mysql_real_escape_string() function.(2) Also input data must be filtered before being passed into sql query using proper validation methods and use of htmlentities() function
d4deepikajain
- Jul 13th, 2009
Few more coding practices can be done to avoid PP Form HijackingUser Input Sanitization-Never trust web user submitted data. Follow good clieint side data validation practices with regular expressions...
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Enctype in Form
Why do we use enctype in form while uploading a file?
abc
- Sep 12th, 2011
The enctype attribute specifies how form-data should be encoded before sending it to the server.The form-data is encoded to "application/x-www-form-urlencoded" by default.
K.Muthuvel5
- Aug 19th, 2010
The enctype attribute specifies how form-data should be encoded before sending it to the server.The form-data is encoded to "application/x-www-form-urlencoded" by default. This means that all characte...
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Cron Jobs
What are cron jobs? Explain in details.
abc
- Sep 12th, 2011
CRON is the name of program that enables UNIX users to execute commands or scripts (groups of commands) automatically at a specified time/date. It is normally used for sys admin commands, like makewha...
Angu432
- Jan 10th, 2011
Its self run program in UNIX, LINUX any commands can be executed.. base on data and time.Eg : to shutdown your server system when clock lock's 9. 00 PM
PHP Interview Questions
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