In this article, we have provided the significant PHP interview questions and answers for freshers who will be going for a job interview as a PHP. Contains Important PHP Interview Questions with Answers and PHP FAQs helpful for Pdf | PHP Technical Questions and Answers | PHP Programming Interview For Freshers | PHP Interview Questions and Answers for Experienced | PHP. + PHP Interview Questions for Freshers – In this list I am sharing the top asked + interview questions with answers for php freshers who will going.
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What is the PHP? What is a PHP developer do? PHP developers develop programs, applications, and web sites using the dynamic scripting language PHP. PHP is known for web development and business applications. Depending on job function, PHP developers may be classified as software developers or web developers.
Both are said to be variables. How to get current session Id in PHP? How to delete a file from the system? Unlink function is used to delete a file in file system. What is SQL Injection? SQL injection is pass vulnerabilities into your web application.
It is a malicious code injection technique. What is htmlentities? It converts entire application characters to HTML characters. Describe types of errors in php? Fetal Errors: Fetal errors are critical errors. The result will cause termination of script. The notice user to rectify the code but do not result the code.
How to can we encrypt data in PHP? What are superglobal variables in PHP? Can we use a number in the begining of a variable declaration? You cannot use a number in the begining of variable declaration. How to find the position of the first occurrence of a substring in a string? What is php. It is simply a configuration file in PHP.
It affects PHP functionality. You can use phpinfo to check php. What are the data types of PHP? What is NULL? NULL is a special type which contains only one value: If you want any variable to set NULL just assign it.
What is the use of Constant Function? It is used to return constant value. PHP provides a large number of predefined constants to any script which it runs known as magic constants.
It is to represent current line number of the file. It is to represent full path of the file. What is Break statement in PHP? It is to terminate code especially in for loop and switch etc.
What is multidimensional Array? An array containing one or more arrays and values are accessed using multiple indices. How to can you concatenate two strings? By using a simple period sign. How to find environment variables in PHP? You can use getenv function for this.
How to sort an array in PHP? For this, there is sort function in PHP? How to read a file in PHP? You can open a file using fopen after that you can fread function to read a file.
How to delete a cookie in PHP? To delete a cookie you should call setcookie with the name argument only. It is used represent file information of an uploading file.
How will you access the uploaded file in PHP? How to know updaloaded file name? How to know uploaded file size? How to know error while uploading a file? What is Magento and how it is different from other e-commerce solutions available in the market? How to create new Magento extensions?
How to override Magento functions? How you can change the layout of a site? What is store concept in Magento? Can we launch multiple stores from same domain? How we can increased the speed of a Magento application? What is Magento cache?
How we can control it? Can we setup out own cache engine? How to change the Magento admin password if you forgot it? What steps you will take to upload a Magento site to a different domain? Examples of some popular extensions? How they can be installed in Magento? In fact, it only has information that the client tells the server and that the server passes on to PHP. Because it is on the server, however, PHP cannot be modified by the client.
While you cannot necessarily trust the information that the client gives to PHP, you can trust that your PHP is doing what you told it to do. Because PHP is on the server end, your PHP scripts can affect your server -- such as by keeping an activity log or updating a database. One of the main reasons that businesses choose PHP is its simplicity and ease of use.
Further, some languages require a moderate amount of programming background before a developer can get up to speed in development. With PHP, however, even non-programmers have been able to develop web-based solutions within a matter of days after going through the basic tutorials on PHP. PHP commands are simply embedded into the same web page with HTML commands, and execute on the server to deliver the web pages to the user.
Another big advantage of PHP is its interoperability with multiple operating systems. They can also use PHP with the popular open source Apache server. Portability is becoming a chief concern for businesses that use one or more operating systems in their businesses. Businesses save money by using PHP to leverage their existing I. A constant function is used to return the constant value. What is the correct way to start and complete a PHP block of code?
There is the two most common and correct ways to start and complete a PHP script. What is a numeric array? The values are stored and accessed in a linear fashion.
Does PHP support multiple inheritances? PHP supports only single level of inheritance. It introduces new functions which are not found in PHP4. In PHP 5, you have to name your constructors.
In PHP 5, interfaces are introduced. What are tags used? They allow making the result of the expression between the tags directly to the browser response. What is the difference between explode and split functions? Split function splits a string into array by regular expression. Explode splits a string into array by string.
Is PHP supports multiple inheritance? What is the use of count function in MySQL? How to send a mail in PHP? Explain what the meaning of a final class and a final method is? How can you break PHP script?
I can use exit function for that. What is the default page in web server? Most of the times it will be index page.
Explain how a comparison of objects done in PHP 5 is? What are the different types of errors in PHP? There are 4 basically types of error in PHP. Parse Error — Commonly caused due to syntax mistakes in codes. Fatal Error — These are basically runtime errors which are caused when you try to access what cannot be done. Warning Error — This error occurs when you try to include a file that is not present.
Notice Error — This error occurs when you try to utilize a variable that has not been declared. What is session and why do we use it? A session is a super global variable that preserves data across subsequent pages. Session uniquely defines all users with a session ID. So it supports building a customized web application where user tracking is required. Explain which type of operation is required when passing values into an URL? To pass values by an URL, then you require to encode and to decode them applying urlencode and htmlspecialchars.
What is cookie and why do we use it?
We cannot alter the value of a constant. What is the difference between unset and unlink function? Explain which is required to be able to utilize image function?
The GD library is required to be able to do image functions. It also helps to execute more image functions. The difference between an ID and Class is that an ID can be utilized to identify one element, whereas a class can be used to identify more than one.
What is AJAX? Data is exchanged asynchronously in a small amount of data with the server. What is jQuery? It is an easy-to-use API. It makes things like HTML document traversal and manipulation, animation, event handling and Ajax much simpler across a more number of browsers. What is the difference between SQL and Mysql? Mysql is an open source, relational database management System.
Describe what the functions to be utilized to get the image properties Height, Width, and Size are? There are three functions are used to get image properties. That functions are: imagesy for getting image height.