Php Interview Question Answer

---

Question : 1

What is the difference between strstr & stristr?

---

Question : 2

What is the difference between explode and split?

---

Question : 3

How can you avoid execution time out error while fetching record from MySQL?

---

Question : 4

What is the difference between require() and include()?

---

Question : 5

What is the difference between echo and print?

---

Question : 6

What's the difference between COPY OF A FILE & MOVE_UPLOAD_FILE in file uploading?

---

Question : 7

How do you insert single & double quotes in MySQL db without using PHP?

---

Question : 8

What do you need to do to improve the performance (speedy execution) for the script you have written?

---

Question : 9

How do you capture audio/video in PHP?

---

Question : 10

How do you know (status) whether the recipient of your mail had opened the mail i.e. read the mail?

---

Question : 11

What is a random number?

---

Question : 12

What is difference between srand & shuffle?

---

Question : 13

How can we remove duplicate values from an array?

---

Question : 14

How can we submit a form without a submit button?

---

Question : 15

What is difference between mysql_connect and mysql_pconnect?

---

Question : 16

How I can get IP address?

---

Question : 17

What is CAPTCHA?

---

Question : 18

What is the difference between sizeof($array) and count($array)?

---

Question : 19

What are the different types of errors in PHP?

---

Question : 20

What is the difference between the functions unlink and unset?

---

Question : 21

What is meant by urlencode() and urldecode()?

---

Question : 22

How do you define a constant?

---

Question : 23

-and-via-">What"s the difference between accessing a class method via -> and via ::?

---

Question : 24

What"s the difference between htmlentities() and htmlspecialchars()?

---

Question : 25

What"s the difference between md5(), crc32() and sha1() crypto on PHP?

---