PHP vfprintf() Function Last Updated : 25 Aug, 2023 Summarize Comments Improve Suggest changes Share Like Article Like Report The vfprintf() function is an inbuilt function in PHP that is used to write formatted information to a stream, such as a file or the output screen. Syntax: vfprintf(resource $stream, string $format, array $values): Parameters: This function accepts three parameters that are described below. $stream: This parameter tells you where you write the string. It could be a file or a standard output like a screen.$format: This is a template that shows how you want to arrange your data. It contains placeholders (like %d, %s, etc.) that represent where your actual data will go.$values: This array holds the actual data that will be inserted into the placeholders of the format string.Return Values: The vfprintf() function returns the count of the character written to the screen. It will return an integer type Program 1: The following program demonstrates the vfprintf() function. PHP <?php $stream = fopen('./output.txt', 'w'); $values = [10, "Ram"]; $format = "Number: %d, Name: %s\n"; $result = vfprintf($stream, $format, $values); fclose($stream); if ($result >= 0) { echo "Successfully wrote $result characters to the file."; } else { echo "An error occurred while writing to the file."; } ?> OutputSuccessfully wrote 22 characters to the file.Program 2: The following program demonstrates the vfprintf() function. PHP <?php $stream = fopen('php://stdout', 'w'); $values = ["Hello", "GPT-3.5", 2023]; $format = "Hello Geeks for Geeks .\n"; $result = vfprintf($stream, $format, $values); if ($result >= 0) { echo "Successfully wrote $result characters to the screen."; } else { echo "An error occurred while writing to the screen."; } fclose($stream); ?> OutputHello Geeks for Geeks . Successfully wrote 24 characters to the screen.Reference: https://www.php.net/manual/en/function.vfprintf.php Comment More infoAdvertise with us Next Article PHP vfprintf() Function N neeraj3304 Follow Improve Article Tags : PHP PHP-function Similar Reads PHP vprintf() function The vprintf() function in PHP is an inbuilt function which is used to display array values as a formatted string Display array values as a formatted string according to format it is work similar as printf() but accepts an array of arguments, in place of variables number of arguments. Returns the len 5 min read PHP vsprintf() Function The vsprintf() function in PHP is an inbuilt function and used to display array values as a formatted string. The array elements will be inserted at the percent (%) signs in the main string. Display array values as a formatted string according to its format and accepts an array argument in place of 5 min read PHP sprintf() Function The sprintf() function is an inbuilt function in PHP that is used for formatting strings in a manner similar to the C language's printf() function. It allows you to create formatted strings by substituting placeholders with corresponding values. Syntax: string sprintf(string $format, mixed ...$value 2 min read PHP | rewind( ) Function The rewind() function in PHP is an inbuilt function which is used to set the position of the file pointer to the beginning of the file. Any data written to a file will always be appended if the file is opened in append ("a" or "a+") mode regardless of the file pointer position. The file on which the 2 min read PHP String Functions Strings are a fundamental data type in PHP, used to store and manipulate text. PHP provides a wide variety of built-in string functions. These functions perform various operations such as string transformations, character manipulations, encoding and decoding, and formatting, making string handling s 6 min read Like