Top PHP Interview Questions and Answers

1.What area unit the kinds of Array in PHP?


three kinds of Arrays in PHP:


Indexed Array – AN array with a numeric index is thought because the indexed array. Values area unit keep and accessed in linear fashion.

Associative Array – AN array with strings as index is thought because the associative array. This stores part values during association with key values instead of in a strict linear index order.

Multidimensional Array – AN array containing one or a lot of arrays is thought as dimensional array. The values area unit accessed victimisation multiple indices.

2.What is the distinction between single quoted string and double quoted string?

Singly quoted strings area unit treated virtually virtually, whereas doubly quoted strings replace variables with their values furthermore as specially decoding sure character sequences. 

For example –


<?php

$variable = "name";

$statement = 'My $variable won't print!n';

print($statement);

print "

;"

$statement = "My $variable can print!n"

print($statement);

?>


3.How to concatenate 2 strings in PHP?


To concatenate 2 string variables along, we have a tendency to use the dot (.) operator.


<?php

$string1="Hello edureka";

$string2="123";

echo $string1 . " " . $string2;

?>


4.How is it attainable to line AN infinite execution time for PHP script?


The set_time_limit(0) additional at the start of a script sets to infinite the time of execution to not have the PHP error ‘maximum execution time exceeded.’ it's conjointly attainable to specify this within the php.ini file.

5. what's the distinction between “echo” and “print” in PHP?

PHP echo output one or a lot of string. it's a language construct not a perform. therefore use of parentheses isn't needed. however if you wish to pass over one parameter to echo, use of parentheses is needed. Whereas, PHP print output a string. it's a language construct not a perform. therefore use of parentheses isn't needed with the argument list. not like echo, it continually returns one.

Echo will output one or a lot of string however print will solely output one string and continually returns one.

Echo is quicker than print as a result of it doesn't come back any price.



 What is PHP?


PHP could be a open supply, taken and object-oriented scripting language i.e. dead at server facet. it's accustomed develop internet applications (an application i.e. dead at server facet and generates dynamic page).

PHP may be a server aspect scripting language.
PHP is associate taken language, i.e. there's no would like for compilation.
PHP is associate object-oriented language.
PHP is associate ASCII text file scripting language.
PHP is straightforward and straightforward to find out language.

List of Backlinks

https://therealmofsaphriel.enjin.com/profile/20131269

http://www.dronestagr.am/author/delhiford/

https://www.clippings.me/delhiford

https://n4g.com/user/score/delhiford

https://www.geni.com/people/Ford-Dealer-near-me-Delhi-Ford-Me/6000000103704913006

https://www.bloggingseed.com/profile-creation-sites-list/?unapproved=11077&moderation-hash=eff66efd48669e1d7fe76faa17cc92fe#comment-11077
http://blogs.stlawu.edu/jbpcultureandmedia/2013/10/27/blog-entry-7-how-do-we-secure-personal-data/comment-page-2899/#comment-221495

https://lke.cs.buap.mx/2016/index.php/2015/08/06/hello-world/#comment-25300

https://www.wou.edu/wp/tims/2014/02/14/creating-an-online-promotion-portfolio/#comment-127098

http://www.unae.edu.py/innova/index.php?option=com_k2&view=item&id=16:sample-item-15&limitstart=0

https://generalsinjoburg.academic.wlu.edu/cultural-dance-festival-joubert-park-johannesburg-south-africa-march-2008/#comment-2554

https://generalsinjoburg.academic.wlu.edu/cultural-dance-festival-joubert-park-johannesburg-south-africa-march-2008/#comment-2553

http://www.unae.edu.py/innova/index.php?option=com_k2&view=item&id=16:sample-item-15&limitstart=0

http://blogs.stlawu.edu/jbpcultureandmedia/2013/10/27/blog-entry-7-how-do-we-secure-personal-data/comment-page-2899/#comment-221493

https://lke.cs.buap.mx/2016/index.php/2015/08/06/hello-world/#comment-25299

https://www.wou.edu/wp/tims/2014/02/14/creating-an-online-promotion-portfolio/#comment-127097

https://generalsinjoburg.academic.wlu.edu/cultural-dance-festival-joubert-park-johannesburg-south-africa-march-2008/#comment-2552

http://www.unae.edu.py/innova/index.php?option=com_k2&view=item&id=16:sample-item-15&limitstart=0

http://blogs.stlawu.edu/jbpcultureandmedia/2013/10/27/blog-entry-7-how-do-we-secure-personal-data/comment-page-2899/#comment-221492

https://www.wou.edu/wp/tims/2014/02/14/creating-an-online-promotion-portfolio/#comment-127095

https://lke.cs.buap.mx/2016/index.php/2015/08/06/hello-world/#comment-25297

https://generalsinjoburg.academic.wlu.edu/cultural-dance-festival-joubert-park-johannesburg-south-africa-march-2008/#comment-2549

http://www.unae.edu.py/innova/index.php?option=com_k2&view=item&id=16:sample-item-15&limitstart=0

https://www.wou.edu/wp/tims/2014/02/14/creating-an-online-promotion-portfolio/#comment-127091

https://lke.cs.buap.mx/2016/index.php/2015/08/06/hello-world/#comment-25121

http://blogs.stlawu.edu/jbpcultureandmedia/2013/10/27/blog-entry-7-how-do-we-secure-personal-data/comment-page-2899/#comment-221484

https://www.facebook.com/chandan.kumarsingh.142035?__tn__=%2CdC-R-R&eid=ARBAq38-S52zMRdlaNAZXP-GdZEvD_2KkpXKJq7551zAefZT7mQ8OR3Hdz3AoabS-v4T86jAb8_d7Vn_&hc_ref=ARRp_SAu1Guw22Pz4HmorLhBGCBS6vk8AhBckS3ZkpJ7SLC-9JEe2Xmj0oCU2PPbCmM&fref=nf
https://www.facebook.com/jennywatson.sharma.1?__tn__=%2CdC-R-R&eid=ARCGYMOc-Gtz-ZGzaLkfhDhfa2cG5WFSBwKmg_6yo-_afcOILa-gaBy9sArfmG8hR9NW_CvJfI-sR5Ua&hc_ref=ARSjOUWmr9SJZonWbKPyLFEew4LW-A5hwWyGTDf9_hd2Dvkis56w0uwFa0PrV8_6C_Y&fref=nf

https://flipboard.com/@noidaford/noida-ford-u4ilu5opy

https://weheartit.com/articles/334177645-noida-ford?posted=1

https://hubpages.com/@noidaford

https://seokorner.com/new.php

http://flip.it/zA2Ld9

https://weheartit.com/Ghaziabadford

https://hubpages.com/@ghaziabadford

https://seokorner.com/new.php

http://www.ghaziabadford.com/?fbclid=IwAR17OdujTftgy0d8fVpNTrZyNt90tQEG9GqXcTe0lS1x32jxH9gXw4nAMmY

https://flipboard.com/@chandankrsingh

https://myspace.com/chandantimble

https://www.zumvu.com/delhifordin/

https://weheartit.com/chandantimble/uploads

http://digg.com/u/Chandantimble


Comments

Post a Comment

Popular posts from this blog

Top 400+ Profile Creation Sites List 2019

Backlinks from high authority sites to any web site is basicallyo} important and that we all grasp this fact. nobody will deny this reality and is often running to urge it. SEO AIM purpose understands this reality too and providing the list of prime 400+ profile sites in 2019. If we have a tendency to remark Offpage SEO, profile creation may be a very important activity that each SEO skilled will. during this SEO activity we have a tendency to add a person’s profile info that features name, website, contact range, profile image, blog, location, regarding him / her etc. By making profiles for someone, his/her each detail go live and person realize|searching for} it will find it handily. The best a part of high public prosecutor profile creation sites is that it provides you long run backlinks / inward link that Google and alternative computer program appreciates. There ar some dedicated profile creation sites like music, amusement or softwares on that you'll be able to pro...
Read more

High PR Profile Creation Site Lists in 2019

Profile Creation Sites ar very terribly helpful for rising your blog’s traffic and SERP. This is the section of any social media style of account wherever you tell individuals regarding yourself. These ar terribly helpful of late to indicate your blog’s on-line presence on totally different platforms. By mistreatment this methodology you'll place all of your description regarding yourself and on most of the platforms you'll add your social media accounts too. Here you'll conjointly get house to feature your diary universal resource locator. thus simply by doing this straightforward job, you'll get top quality future backlinks that Google counts as white hat SEO. These ar free dofollow and no follow profile creation sites to induce a really top quality backlinks Basically, this can be one amongst the simplest off page SEO techniques. One more vital factor to inform you that these kinds of sites conjointly improves the domain authority(DA) of your si...
Read more

Beginner's Guide to Link Building

What Is Link Building & Why Is It Important? Whether you are latest to link building or are doing it for a jiffy, we're certain you will find one thing helpful during this guide. The landscape of SEO and link building is usually dynamical, and today, the importance of building high-quality links has ne'er been higher. the necessity to grasp and implement high-quality campaigns is important if you are going to vie and thrive on-line, which is not getting to modification any time before long. This guide is meant to induce you going quickly and within the right direction. there's loads to require in, however we've broken everything up into easy-to-digest chapters and have enclosed many examples on the method. we have a tendency to hope you get pleasure from The Beginner's Guide to Link Building! Definition of link building Link building is that the method of feat hyperlinks from different websites to your own. A link (usually simply referred to as a link) c...
Read more