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php interview questions for 10 years experience

@CodeGrepperManu answered on December 30, 2020 Popularity 10/10 Helpfulness 5/10

answer php interview questions for 10 years experience

related php interview questions for 2 year experience

php interview questions for 10 years experience

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Q1] What is the use of ini_set()?
Q2] What is the difference between == and ===?
Q3] What is the return type of a function that doesn't return anything?
Q4] What does $GLOBALS mean?
Q5] What are the keys & values in an indexed array?
Q6] What is the purpose of php.ini file?
Q7] How can you pass a variable by reference?
Q8] Is multiple inheritance supported in PHP?
Q9] What is stdClass in PHP?
Q10] In PHP, objects are they passed by value or by reference?
Q11] What is PDO in PHP?
Q12] Is there a difference between isset and !empty?
Q13] Differentiate between echo and print()
Q14] What is the differences between $a != $b and $a !== $b?
Q15] What does the 'var' keyword mean in PHP?
Q16] What do we mean by keys and values?
Q17] What are the differences between die() and exit() functions in PHP?
Q18] Explain what the different PHP errors are
Q19] Explain usage of enumerations in PHP
Q20] Explain how we handle exceptions in PHP?
Q21] What are the main differences between const vs define
Q22] What's the difference between isset() and array_key_exists()? 
Q23] Can you extend a Final defined class?
Q24] What are PSRs? Choose 1 and briefly describe it.
Q25] How can you enable error reporting in PHP?
Q26] When should I use require vs include?
Q27] What are the different scopes of variables?
Q28] What is the difference between var_dump() and print_r()?
Q29] What is the difference between single-quoted and double-quoted strings in PHP?
Q30] How is it possible to set an infinite execution time for PHP script?
Q31] Give me some real life examples when you had to use __destruct in your classes
Q32] Is there a function to make a copy of a PHP array to another?
Q33] Explain the difference between exec() vs system() vs passthru()?
Q34] Are Parent constructors called implicitly inside a class constructor?
Q35] Maximum how many arguments are allowed in a function in PHP?
Q36] What is the difference between PDO's query() vs execute()?
Q37] Explain the difference between shell_exec() and exec()
Q38] What is the difference between a PHP interpreter and a PHP handler?
Q39] Differentiate between exception and error
Q40] What exactly is the the difference between array_map, array_walk and array_filter?
Q41] What are the exception class functions?
Q42] What are some of the big changes PHP has gone through in the past few years?
Q43] Differentiate between parameterised and non parameterised functions
Q44] Why do we use extract()?
Q45] Explain function call by reference
Q46] What is the difference between using self and $this?
Q47] What is use of Null Coalesce Operator?
Q48] Does PHP support method overloading?
Q49] What is the difference between MySQL, MySQLi and PDO? 
Q50] What is autoloading classes in PHP?
Q51] When should I use require_once vs require?
Q52] Is there any reason to use strcmp() for strings comparison?
Q53] Compare MySQLi or PDO - what are the pros and cons?
Q54] Store an array as JSON or as a PHP serialized array?
Q55] What are the disadvantages of using persistent connection in PDO?
Q56] What exactly are late static bindings in PHP?
Q57] Explain the Exception Hierarchy introduced in PHP7
Q58] Explain what is a closure in PHP and why does it use the “use” identifier?
Q59] What is use of Spaceship Operator?
Q60] What is the best method to merge two PHP objects?
Q61] Is PHP single or multi threaded?
Q62] How to turn errors into exceptions in PHP?
Q63] What does $$ mean?
Q64] What is the crucial difference between using traits versus interfaces?
Q65] What does yield mean in PHP?
Q66] What's better at freeing memory with PHP: unset() or $var = null?
Q67] Does PHP have threading?
Q68] Are PDO prepared statements sufficient to prevent SQL injection?
Q69] Explain the Order of Precedence for Traits in PHP
Q70] What does a $$$ mean in PHP?
Code Challenges
Q1] Declare some function with default parameter
Q2] PHP array delete by value (not key)
Q3] What will be returned by this code? Explain the result.  
Q4] How do I pass variables and data from PHP to JavaScript?  
Q5] Let's create Enumerations for PHP. Prove some code examples.  
Q6] How would you create a Singleton class using PHP?  
Q7] What does the following code output?  
Q8] What will be returned by this code?  
Q9] Check if PHP array is associative  
Q10] How to measure execution times of PHP scripts?
Q11] How could we implement method overloading in PHP?
Q12] Provide some ways to mimic multiple constructors in PHP  
===================

1) What is PHP?
2) What is PEAR in PHP?
3) Who is known as the father of PHP?
4) What was the old name of PHP?
5) Explain the difference b/w static and dynamic websites?
6) What is the name of scripting engine in PHP?
7) Explain the difference between PHP4 and PHP5.

Popularity 10/10 Helpfulness 5/10 Language php

Source: Grepper

Tags: php

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Contributed on Apr 09 2023

@CodeGrepperManu

0 Answers Avg Quality 2/10

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php interview questions for 2 year experience

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<?php
if(empty($_POST['email'])){
  echo "The email cannot be empty";
}

$email = $_Post [‘email’]?? "The email cannot be empty";
?>

Popularity 10/10 Helpfulness 2/10 Language php

Source: www.codementor.io

Tags: php

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Contributed on Dec 30 2020

Grumpy Grasshopper

0 Answers Avg Quality 2/10

php interview questions for 10 years experience

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php interview questions for 10 years experience

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