Tag: web technology

Questions Related to web technology

Which of following function return 1 when output is successful?

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  1. echo ( )

  2. print()

  3. both

  4. none

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Correct Option: B

AI Explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) echo() - This option is incorrect because the echo() function does not return a value. It simply outputs the given string or variable to the browser or console.

Option B) print() - This option is correct because the print() function outputs the given string or variable to the browser or console, and returns a value of 1 if the output is successful.

Option C) both - This option is incorrect because only the print() function returns a value of 1 when the output is successful. The echo() function does not return a value.

Option D) none - This option is incorrect because the print() function does return a value of 1 when the output is successful.

Therefore, the correct answer is B) print(). This option is correct because the print() function returns a value of 1 when the output is successful.

Which of followng statement is more suitable if you want to output a blend of static text and dynamic information stored within one or several variables?

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  1. echo()

  2. print()

  3. Printf()

  4. none

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Correct Option: C

Which of the following type specifier is invalid in printf() functions?

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  1. %a

  2. %b

  3. %c

  4. %d

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Correct Option: A

For integer data type PHP 5 and earlier supported?

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  1. 8 bit integer value

  2. 16 bit integer value

  3. 32 bit integer value

  4. 64 bit integer value

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Correct Option: C

In mail($param2, $param2, $param3, $param4), the $param2 contains:
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  1. The message

  2. The subject

  3. The header

  4. The recipient

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Correct Option: A

When uploading a file if the UPLOAD_ERR-OK contains value 0 it means?
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  1. Uplaod is not successful, error occurred

  2. The file uploaded with success

  3. Uploaded file size is 0

  4. File upload progress is 0% completed

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Correct Option: B

fopen($file_doc,"r+"); opens a file for?

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  1. reading

  2. writing

  3. none of above

  4. both of above

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Correct Option: D

To work with remote files in PHP you need to enable?

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  1. allow_url_fopen

  2. allow_remote_files

  3. both of above

  4. none of above

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Correct Option: A

AI Explanation

To work with remote files in PHP, you need to enable the allow_url_fopen directive.

Option A) allow_url_fopen - This option is correct because it allows PHP to open remote files using functions like file_get_contents() and fopen() with URLs as the file path.

Option B) allow_remote_files - This option is incorrect because there is no such directive in PHP.

Option C) Both of the above - This option is incorrect because only the allow_url_fopen directive needs to be enabled to work with remote files in PHP.

Option D) None of the above - This option is incorrect because the allow_url_fopen directive is required to work with remote files in PHP.

The correct answer is A) allow_url_fopen. This option is correct because it allows PHP to open remote files.

Which of the following mode of fopen() function opens a file only for writing. If a file with that name does not exist, attempts to create anew file. If the file exist, place the file pointer at the end of the file after all other data?

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  1. A

  2. W

  3. W+

  4. A+

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Correct Option: A

The function setcookie( ) is used to:

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  1. Declare cookie variables

  2. Store data in cookie variable

  3. Enable or disable cookie support

  4. All of the above

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Correct Option: B