Doubtly
@Doubtly · Joined Feb 2021
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- What is needed to be able to use image function? GD library is needed to execute image functions. 2
- How can PHP and Javascript interact? PHP and Javascript cannot directly interact since PHP is a server side language and Javascript is a client-side language. However, we can ex... 1
- What type of operation is needed when passing values through a form or an URL? If we would like to pass values through a form or an URL, then we need to encode and to decode them using htmlspecialchars() and urlencode()... 1
- How can PHP and HTML interact? It is possible to generate HTML through PHP scripts, and it is possible to pass pieces of information from HTML to PHP. 1
- How is the comparison of objects done in PHP? We use the operator ‘==’ to test is two objects are instanced from the same class and have same attributes and equal values. We can test if... 1
- What is the meaning of a final class and a final method? ‘final’ is introduced in PHP5. Final class means that this class cannot be extended and a final method cannot be overridden. 1
- Is multiple inheritance supported in PHP? PHP supports only single inheritance; it means that a class can be extended from only one single class using the keyword ‘extended’. 1
- What is the main difference between PHP 4 and PHP 5? PHP 5 presents many additional OOP (Object Oriented Programming) features. 1
- How can we display the output directly to the browser? To be able to display the output directly to the browser, we have to use the special tags <?= and ?>. 1
- What is the correct and the most two common way to start and finish a PHP block of code? The two most common ways to start and finish a PHP script are: <?php [ --- PHP code---- ] ?> and <? [--- PHP code ---] ?> 1
- How to run the interactive PHP shell from the command line interface? Just use the PHP CLI program with the option -a as follows: php -a 1
- How do you execute a PHP script from the command line? Just use the PHP command line interface (CLI) and specify the file name of the script to be executed as follows: php script.php 1
- What does PEAR stand for? PEAR means “PHP Extension and Application Repository”. It extends PHP and provides a higher level of programming for web developers. 1
- Which programming language does PHP resemble? PHP syntax resembles Perl and C 2
- What do the initials of PHP stand for? PHP means PHP: Hypertext Preprocessor. 2
- What is PHP ? PHP is a web language based on scripts that allow developers to dynamically create generated web pages. 2
- Which animal is known as the 'Ship of the Desert"? Camels are known as the ships of the desert mainly because of their physical characteristics which are well adapted to the conditions of the... 1
- Figure shows the x-t plot of one-dimensional motion of a particle. Is it correct to say from the graph that the No. The x-t graph of a particle moving in a straight line for t < 0 and on a parabolic path for t > 0 cannot be shown as the given graph. Th... 1