PHP Interview questions

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PHP Interview questions with answers

PHP Interview - August 21, 2008 at 22:00 pm by Rajmeet Ghai What is PHP? Answer - PHP (Hyper text Pre Processor) is a scripting language commonly used for web applications............. What Is a Session in PHP? Answer - A PHP session is no different from a normal session. It can be used to store information on the server for future use............. Explain the difference between $message and $$message? Answer - $message is used to store variable data. $$message can be used to store variable of a variable............. How to set cookies in PHP? Answer - Cookies are often used to track user information............. What is the difference between include and require? Answer - Require () and include () are the same with respect to handling failures............. What is urlencode and urldecode? Answer - Urlencode can be used to encode a string that can be used in a url............. What are the different types of errors in PHP? Answer - Different types of errors are............ Explain how to submit form without a submit button. Answer - A form data can be posted or submitted without the button in the following ways:............ What are the functions for IMAP? Answer - IMAP is used for communicate with mail servers. It has a number of functions............. How can we increase the execution time of a php script? Answer - Default time allowed for the PHP scripts to execute is 30s defined in the php.ini file............. What is Type juggle in php? Answer - Type Juggling means dealing with a variable type. In PHP a variables type............ What is the difference between mysql_fetch_object and mysql_fetch_array? Answer - Mysql_fetch_object returns the result from the database as objects while............ What is the difference between the functions unlink and unset? Answer - Unlink is a function for file system handling which deletes a file............. What is Joomla in PHP? Answer - Joomla is an open source content management system............. What is zend engine? Answer - Zend Engine is used internally by PHP as a complier and runtime engine............. What is the difference between Split and Explode? Answer - Both the functions are used to Split a string. However, Split is used to split............ What is the difference between echo and print statement? Answer - Echo can accept multiple expressions while print cannot............. What is CAPTCHA? Answer - CAPTCHA is a test to determine if the user using the system............ What is difference between developing website using Java and PHP? Answer - In order to make interactive pages, java uses JSP (Java Server pages)............. How do you create sub domains using PHP? Answer - Wild card domains can be used. Sub domains can be created by first creating............ How to upload files using PHP? Answer - Files can be uploaded in PHP by using the tag type=”file”............. What is the difference between Notify URL and Return URL? Answer - Notify URL and Return URL is used in Paypal Payment Gateway integration............. Describe functions STRSTR() and STRISTR. Answer - Both the functions are used to find the first occurrence of a string............. What are the various methods to pass data from one web page to another web page? Answer - Different methods to pass data from one web page to another:............ Related Links Types of Error Handling in PHP Data Object Defining an Error Handling Function in PHP Related Books AJAX and PHP Learning PHP Data Objects