In this article on PHP Interview Questions, I have compiled a list of fundamental PHP interview questions and answers that were asked in a real interview for a PHP web developer position. Every PHP web developer should know these questions/answer of PHP. So, either you are preparing for any interview in PHP development or are a web developer, you should go through the following list of interview questions in PHP. These PHP questions are mix of basic PHP questions to advance questions that expert PHP engineers know.

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The array_merge() function merges the elements of one or more arrays together so that the values of one are appended to the end of the previous one. It returns the resulting array.

<?php
$A1=array("apple","papaya");
$A2=array("banana","grapes");
print_r(array_merge($A1,$A2));
?> 

Output would be :
Array ( [0] => apple[1] => papaya[2] => banana [3] => grapes ) 

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Sometimes we faced the problem on scrolling the content on the page and go to the bottom of the page and feel we need to go on top of the page.

For that we need to scroll the page again which is irritating. If there would be any option to click on which we can jump to top of the page easily seems good.

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Opening inline HTML in a fancybox popup is easily achievable but once I faced the problem of opening a html page within the fancybox popup.

After googling, I found the solution that ‘type’ property of fancybox we need to include on calling of it.

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WordPress automatically display an admin toolbar at the top of the page in frontend for logged in users.

This admin bar in WordPress is really an annoyance to me because it slightly disturb my theme design and I never want the toolbar for anything. I can hide it by using css and we can also do it in wordpress by using wordpress filter.

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Opening fancybox on page load is very simple. just call below given code in document ready eg.

$(document).ready(function () {
        $.fancybox({
            'width': '80%',
            'height': '80%',
            'autoScale': true,
            'transitionIn': 'fade',
            'transitionOut': 'fade',
            'type': 'iframe',
            'href': 'http://www.example.com'
        });
});

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