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What is the purpose of the
glob()function in PHP?- A) Converts a string to lowercase
- B) Searches for files matching a specified pattern
- C) Parses a URL
- D) Encodes data using MIME base64
Answer: B) Searches for files matching a specified pattern
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What is the output of the following code snippet?
$str = "Hello World"; echo strpos($str, "World");
- A) 0
- B) 5
- C) 6
- D) -1
Answer: B) 6
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Which of the following PHP functions is used to retrieve the current timestamp?
- A) now()
- B) timestamp()
- C) time()
- D) current_time()
Answer: C) time()
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What is the purpose of the
substr()function in PHP?- A) Converts a string to uppercase
- B) Truncates a string to a specified length
- C) Reverses the characters in a string
- D) Searches for a substring within a string
Answer: B) Truncates a string to a specified length
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Which of the following is used to start a session in PHP?
- A) start_session()
- B) session_start()
- C) new_session()
- D) begin_session()
Answer: B) session_start()
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What is the output of the following code snippet?
$arr = [1, 2, 3, 4, 5];
echo array_sum($arr);- A) 15
- B) 10
- C) 5
- D) Error
Answer: A) 15
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Which of the following PHP functions is used to send an email?
- A) mail()
- B) send_mail()
- C) email_send()
- D) smtp_send()
Answer: A) mail()
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What does the
implode()function in PHP do?- A) Splits a string into an array
- B) Joins elements of an array into a string
- C) Reverses the characters in a string
- D) Removes whitespace from the beginning and end of a string
Answer: B) Joins elements of an array into a string
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What is the purpose of the
json_encode()function in PHP?- A) Converts a JSON string into an object
- B) Encodes a PHP variable into a JSON string
- C) Decodes a JSON string into an array
- D) Removes whitespace from the beginning and end of a string
Answer: B) Encodes a PHP variable into a JSON string
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Which of the following PHP functions is used to redirect the user to another URL?
- A) redirect()
- B) header()
- C) location()
- D) goto()
Answer: B) header()
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