DOWNLOAD OR READ: PHP INTERVIEW QUESTIONS AND ANSWERS KNOWLEDGE PUBLISHER. PDF EBOOK EPUB MOBI tutorial pdf for the new and beginners, php book pdf for beginners and professionals, php tutorial pdf free. Frequently asked PHP Interview Questions with detailed answers and examples. by selecting an option from drop down box with the invocation of onChange F from FPDF stands for Free: you may use it for any kind of usage and modify it. php interview questions answers book by placecom ebook pdf at our this our library download file free iis interview questions and answers.
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Download Free Php tutorial pdf, HTML tutorial pdf, CSS tutorial pdf, php book pdf, php tutorial pdf, php ebook free download and php tutorial for php interview questions and answers pdf php interview questions and answers for freshers. 1) What is PHP? PHP is a web language based on scripts that allow developers to dynamically create generated web pages. 2) What do the. here are top php interview questions and answers for 1 year experience. download file free pdf ebook. how to answer the four most common interview.
PHP is a widely-used, open source scripting language used for scripts that are executed on the server and it is freeware. It is a server side scripting language used to develop attractive and dynamic web pages. For beginning use php tutorial pdf php tutorial pdf free download for beginners , php book pdf, php tutorial pdf , php ebook free download and php tutorial for beginners with examples. As mentioned above, our effort is focus on what You may desire to set up your own test server, which is extremely unproblematic to do, using the next couple of chapters to help you out. Our center is to endow with you with uncomplicated information.
It is used by sites such as Digg.
To scrap the data from website, Website must be public and open for scrapable. Urlencode can be used to encode a string that can be used in a url. It encodes the same way as posted data from web page is encoded. It returns the encoded string. This is a convenient way for passing variables to the next page. Urldecode can be used to decode a string. The debug information that Xdebug can provide includes the following:. This video can help you to get detail about PHP training course. But it creates a problem when a xyz.
Otherwise, there is no problem, for instance if you want to show same content two times in the page then you must include it two times. Once the Web server received the uploaded file, it will call the PHP script specified in the form action attribute to process them. If you want to include special characters like spaces in the query string, you need to protect them by applying the urlencode translation function.
The script below shows how to use urlencode:. Career-oriented Training. Thanks for making this platform available.
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Hurry up. Sign Up or Log In using. Here are top 31 objective type sample PHP Interview questions and their answers are given just below to them. We have taken full care to give correct answers for all the questions. Do comment your thoughts Happy Job Hunting! Basic Questions. How can we encrypt password using PHP?
A form can be submitted in these other ways without using submit button. Submitting a form by clicking a link Submitting a form by selecting an option from drop down box with the invocation of onChange event Using java script: Become PHP Certified in 16 hrs.
What is Zend Engine? Zend Engine is used internally by PHP as a compiler and runtime engine. PHP Scripts are loaded into memory and compiled into Zend opcodes. These opcodes are executed and the HTML generated is sent to the client. The Zend Engine provides memory and resource management, and other standard services for the PHP language. What library is used for pdf in PHP? What are some new features introduced in PHP7?
Zend Engine 3 performance improvements and bit integer support on Windows uniform variable syntax AST-based compilation process added Closure:: What is htaccess? Why do we use this and where? A file, containing one or more configuration directives, is placed in a particular document directory, and the directives apply to that directory, and all subdirectories thereof.
For instance , htaccess file is used for url rewrite. What are magic methods?
Top 100 PHP Interview Questions and Answers
Magic methods are member functions that are available to all the instance of class. All magic methods need to be declared as public To use a method, it should be defined within the class or program scope Various Magic Methods used in PHP 5 are: Explain soundex and metaphone. What is smarty? What is Memcache?
How can we execute a PHP script using command line? How to scrape data from website using CURL? How urlencode and urldecode can be used?
Which PHP Extension help to debug the code? The debug information that Xdebug can provide includes the following: How can I execute an anonymous function? Explain how to send large amounts of emails using PHP. There are different methods through which we can send mails in PHP. This function is not supported in PHP 7. Imagine you have a form field called 'var' on the form when the user clicks submit to the post form, you can then access the value like this: If we want to check whether a variable has a value or not, it is possible to use the empty function.
The unlink function is dedicated for file system handling. It simply deletes the file given as entry. The unset function is dedicated for variable management.
It will make a variable undefined. The addslashes function enables us to escape data before storage into the database. The stripslashes function enables us to remove the escape characters before apostrophes in a string.
We have to enable the Magic quotes entry in the configuration file of PHP. A static variable is defined within a function only the first time, and its value can be modified during function calls as follows: This feature is possible using the global keyword. It is preferable to use crypt which natively supports several hashing algorithms or the function hash which supports more variants than crypt rather than using the common hashing algorithms such as md5, sha1 or sha because they are conceived to be fast.
Hence, hashing passwords with these algorithms can create vulnerability. The define directive lets us defining a constant as follows: The name of the output type has to be specified in parentheses before the variable which is to be cast as follows: When the original if was followed by: It is composed of three expressions: In PHP, objects passed by value.
No, a parent constructor have to be called explicitly as follows: The first code is faster than the second code especially for large large sets of data. A session is a logical object enabling us to preserve temporary data across multiple PHP pages. You can propagate a session id via cookies or URL parameters.
A persistent cookie is permanently stored in a cookie file on the browser's computer. By default, cookies are temporary and are erased if we close the browser. The scope of a variable is the context within which it is defined.
Top PHP Interview Questions and Answers
For the most part, all PHP variables only have a single scope. This single scope spans included and required files as well.
The first is the concatenation operator '. The second is '. To be able to verify whether a PHP variable is an instantiated object of a certain class we use instanceof. The goto statement can be placed to enable jumping inside the PHP program. The target is pointed by a label followed by a colon, and the instruction is specified as a goto statement followed by the desired target label.
The boolean function isset determines if a variable is set and is not NULL. The string function strstr string allString, string occ returns part of allString from the first occurrence of occ to the end of allString. This function is case-sensitive. In each iteration, expr2 is evaluated. If it is TRUE, the loop continues, and the statements inside for are executed.
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