vprintf()

Introduction

The vprintf() function in PHP is used to output a formatted string. It works in the same way as printf(), except that the arguments are passed in an array rather than as separate parameters.

Syntax

Here is the syntax of the vprintf() function:

The PHP syntax of the vprintf()

vprintf(format, args_array)

The first argument is a string that contains placeholders for the values that will be inserted into the string. These placeholders begin with a percent (%) character and are followed by a letter that specifies the type of data that will be inserted.

The second argument is an array of values that will be inserted into the placeholders. The array must contain exactly as many elements as there are placeholders, in the order they appear in the format string.

Example:

Here is an example of how to use vprintf():

Example of PHP vprintf()

<‌?php

$values = ['apple', 'banana', 'orange'];
vprintf('I like %s, %s, and %s.', $values);

Try it Yourself »

This will output:

I like apple, banana, and orange.

In this example, the %s placeholders are replaced with the values in the $values array.

The vprintf() function is useful when you have a variable number of arguments that you want to format and output. Note that it returns the length of the formatted string on success, or false on failure.

Practice

What can be said about the vprintf function in PHP?

vprintf is a built-in PHP function used for producing output.vprintf is exclusively used for creating variables.vprintf is used to print to the output before it's sent to the client browser.vprintf can't handle more than one argument.vprintf doesn't require the arguments to be passed as an array.