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<?php
$number = 9;
$str = "tutorialpro";
$txt = sprintf("%s has %u million visitors per day!", $str, $number);
echo $txt;
?>

tutorialpro has 9 million visitors per day!

<?php
$number = 123;
$txt = sprintf("%f", $number);
echo $txt;
?>

<?php
$number = 123;
$txt = sprintf("With two decimal places: %1\$.2f<br>Without decimal places: %1\$u", $number);
echo $txt;
?>

<?php
$num1 = 123456789;
$num2 = -123456789;
$char = 50; // ASCII character 50 is 2

// Note: The format value "%%" returns a percent sign
echo sprintf("%%b = %b", $num1) . "<br>"; // Binary number
echo sprintf("%%c = %c", $char) . "<br>"; // ASCII character
echo sprintf("%%d = %d", $num1) . "<br>"; // Signed decimal number
echo sprintf("%%d = %d", $num2) . "<br>"; // Signed decimal number
?>

echo sprintf("%%e = %e", $num1) . "<br>"; // Scientific notation (lowercase)
echo sprintf("%%E = %E", $num1) . "<br>"; // Scientific notation (uppercase)
echo sprintf("%%u = %u", $num1) . "<br>"; // Unsigned decimal number (positive)
echo sprintf("%%u = %u", $num2) . "<br>"; // Unsigned decimal number (negative)
echo sprintf("%%f = %f", $num1) . "<br>"; // Floating point number (locale aware)
echo sprintf("%%F = %F", $num1) . "<br>"; // Floating point number (non-locale aware)
echo sprintf("%%g = %g", $num1) . "<br>"; // Shorter than %e and %f
echo sprintf("%%G = %G", $num1) . "<br>"; // Shorter than %E and %f
echo sprintf("%%o = %o", $num1) . "<br>"; // Octal number
echo sprintf("%%s = %s", $num1) . "<br>"; // String
echo sprintf("%%x = %x", $num1) . "<br>"; // Hexadecimal number (lowercase)
echo sprintf("%%X = %X", $num1) . "<br>"; // Hexadecimal number (uppercase)
echo sprintf("%%+d = %+d", $num1) . "<br>"; // Sign specifier (positive)
echo sprintf("%%+d = %+d", $num2) . "<br>"; // Sign specifier (negative)
?>

<?php
$str1 = "Hello";
$str2 = "Hello world!";

echo sprintf("[%s]", $str1) . "<br>";
echo sprintf("[%8s]", $str1) . "<br>";
echo sprintf("[%-8s]", $str1) . "<br>";
echo sprintf("[%08s]", $str1) . "<br>";
echo sprintf("[%'*8s]", $str1) . "<br>";
echo sprintf("[%8.8s]", $str2) . "<br>";
?>