Top Php Interview Questions and Answers For Freshers and Experienced Candidates

Php Interview Questions and Answers
Php Interview Questions and Answers

PHP is a server-side scripting language which is mostly used for creating awesome looking websites. RASMUS LERDORF is the father of PHP. PHP 5 and the above php 5 versions works with MySQLi (Database Management System). here i Stands for ** Improved **.

What is PHP

Created in 1994 by Rasmus Lerdorf, the absolute first manifestation of PHP was a simple arrangement of Common Gateway Interface (CGI) parallels composed inside the C programming language. 

PHP (Hypertext Preprocessor) is understood as a general-purpose scripting language that will be wont to develop dynamic and interactive websites. it had been among the primary server-side languages that would be embedded into HTML, making it easier to feature functionality to sites without having to call external files for data.

PHP may be a programming language for rear development only. JavaScript, in turn, was initially designed as a front development language. Thus, in case you’re attempting to settle on a choice among PHP and JavaScript, the conversation is decreased to which language you might want to use for back improvement.

The Use of Learning PHP

PHP is the best user-accessible programming language in server-side scripting. it’s more malleable than C, C++, or ASP. PHP improves website traffic. For developing complex, dynamic, and user-accessible web applications, web developers always use the PHP language because it is easy as compared to other languages. With the computerized economy set to fill cosmically in the coming years, and the greater part of that advanced economy utilizing PHP in some structure, PHP improvement abilities are going to be very high in demand for the foreseeable future.

PHP programs are often written on any editor, like – Notepad, Notepad++, Dreamweaver, etc. These programs save with. PHP extension, i.e., filename. PHP inside the htdocs folder.

And if I think PHP is difficult to find out then let me clear you PHP is one of the better programming languages to find out. This is often because PHP features a strong ecosystem of resources available for beginners and it’s a syntax that’s forgiving to beginners. Whether you struggle to find out PHP depends on your experience with programming.

Here we are getting to tell you an example of how you’ll run a PHP code:

  • INSTALL XAMPP
  • RUN YOUR FIRST PHP SCRIPT
  • Go to the XAMPP server directory
  • Create my.php
  • Create a file and name it “my.php”

Open my.php and put the following code.

Open New Tab

Run it by opening a new tab in your browser

Load hello.php

Output

You should see the following output

Hi Jhon!

Important PHP Interview Questions and Answers Listed By Experts

How to use .xml and ppk file to connect with FTP (File Transfer Protocol)?

How to use .xml and ppk file to connect with FTP (File Transfer Protocol)?

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Convert (div) Html to Image using Javascript html2canvas with Example and Save using Ajax, PHP.

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PHP empty vs isset

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How PHP Reverse Number Program Works?

It is very easy to reverse a number using PHP string function strrev(). But here i will show you ...
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What is the difference between the wp_title and the_title tags?

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Create a chess board using for loop php

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What is the difference between single quotes and double quotes?

Single quoted strings will display things almost completely “as is.” Variables and ...

What is the Scope Resolution Operator?

“::” double colons is the scope operator it is used to call methods of a class that ...

How do you load classes in PHP?

Review the “autoload” and “spl_autoload_register” function (note:you ...

What is Polymorphism?

It’s simply the idea that one object can can take on many forms. So in PHP OOP one class & ...

In a PHP class what are the three visibility keywords of a property or method?

public, private and protected. The default is public. Public -> Any class may instantiate the ...

How we can retrieve the data in the result set of MySQL using PHP?

1. mysql_fetch_row This function will return a row where the values will come in the order as they ...

Write a program using while loop

$my_query = mysql_query("SELECT * FROM 'users' WHERE 'id'='1'; "); while($result = ...

what types of loops exist in php?

In PHP, we have the following looping statements: while – loops through a block of code as ...

What is Open Source Software?

Software in which the source codes are freely used, modify, and shared by anyone are called Open ...

How to create a session? How to set a value in session ? How to Remove data from a session?

Create session : session_start(); Set value into session : $_SESSION'USER_ID'=1; Remove data ...

How to set cookies in PHP?

Setting new cookie ============================= Getting Cookie ============================= ...

What is the difference between Session and Cookie?

The main difference between sessions and cookies is that sessions are stored on the server, and ...

How to declare an array in php?

Just Follow the Below example::: Eg : var $arr = array(‘apple’, ‘grape’, & ...

require_once(), require(), include().What is difference between them?

require() includes and evaluates a specific file, while require_once() does that only if it has ...

What are some of the big changes PHP has gone through in the past few years?

There are a number, but the big ones people are looking for are: a. PHP 5.0 realised the object ...

Explain how a PHP session works?

A PHP session cookie is set in the clients browser, on every request the client sends that cookie ...

What are the different tables present in mysql?

Total 5 types of tables we can create 1. MyISAM 2. Heap 3. Merge 4. InnoDB 5. ISAM 6. BDB MyISAM ...

In PHP what is the difference between a Class and an Interface?

Interfaces do not contain business logic, only method signatures that define a template that any ...

Who is the father of php and explain the changes in php versions?

Rasmus Lerdorf for version changes go to http://php.net/ Marco Tabini is the founder and publisher ...

What is the use of “echo” in php?

It is used to print a data in the webpage, Example: , The following code print the text in the ...

What is PHP?

PHP is a server side scripting language commonly used for web applications. PHP has many ...

What is Object Oriented Programming?

This is usually a pretty open ended question. You should understand classes (objects are ...

Blog is a necessary part to be included in a WordPress Website?

No, it is not a necessary part. Although WP was first designed as a platform for blogging now it ...

Briefly explain the procedure to pass a variable by value in WordPress?

Passing a variable by value in WordPress is similar to as that in C++. We have to just add an ...

Alternative CMS of WordPress?

Joomla Drupal Ghost Movable Type Silver Stripe ...

prefix of WordPress tables by default?

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What’s the difference between site_url() and home_url()?

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How to create Custom Taxonomy specific to a Custom Post type?

First of all, if you want to show taxonomy meta box only to custom post type then register the ...

What options are there to implement a multi language site ?

WordPress has no bi/multi-language feature built in by default. The other road would be to extend ...

How to Create Custom Post Type?

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How to modify the parent theme behavior within the child theme?

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How to write the short code in WordPress php file?

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How Custom theme is different than Normal theme?

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What are the file structure in wordpress.

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What are the rules that you have to follow for wordpress plugin development?

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How to add an external javascript/css file to Magento?

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$message vs. $$message in PHP.

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How send email using php?

To send email using PHP, You use the mail() function.This mail() function accepts 5 parameters as ...

What are the different types of errors in PHP?

There are three types of errors in PHP. 1. Notice: These are very normal and non-critical errors ...

What is PEAR in PHP?

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What is the difference between GET and POST method?

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What is MVC?

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Fatal error: Allowed memory size of 67108864 bytes exhausted in WordPress

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How to get the date of post in a separate day, month and year variables wordpress.??

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How to redirect a page in php?

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What is difference between require_once() and require()??

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How to include a file to a php page?

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How To Submit A Form Without Submit Button Php Jquery Javascript??

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What is the use of in_array() function in PHP?

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What is difference between echo() and print()?

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What is difference between require() and include()?

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Updating WordPress on local server (max execution time)

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