PHP interview question. Part 1

Test your skills with this PHP interview questions with short explanation.

Q1. What code will be printed?

<?php
$x  = 1;
$m = 5;
$y = 8;
if ($y > $m > $x) {
    echo 'Yes';
} else {
    echo 'No';
}

<?php

$x = 1;

$m = 5;

$y = 8;

if ($y > $m > $x) {

echo 'Yes';

} else {

echo 'No';

}

Q2. What are values of variables $a and $b?

<?php
$a = '1';
$b = &$a;
$b = "2$a";

<?php

$a = '1';

$b = &$a;

$b = "2$a";

Q3. How to read file with size of 256MB on a server with 128MB of RAM?

Q4. Write a function with side-effects

Q5. Write decorator for DefaultMailer Class that logs every sent email

<?php
class DefaultMailer implements Mailer
{
    public function mail(string $message)
    {
        ...
    }
}

<?php

class DefaultMailer implements Mailer

{

public function mail(string $message)

{

...

}

Q6. Can the GET method contain Body?

Q7. What are differences between abstract class and interface?

March 22, 2020