Php sprintf
From w3cyberlearnings
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PHP function sprintf
This function is to format string.
Syntax sprintf
List of format
- %% - Returns a percent sign
- %b - Binary number
- %c - The character according to the ASCII value
- %d - Signed decimal number
- %e - Scientific notation (e.g. 1.2e+2)
- %u - Unsigned decimal number
- %f - Floating-point number (local settings aware)
- %F - Floating-point number (not local settings aware)
- %o - Octal number
- %s - String
- %x - Hexadecimal number (lowercase letters)
- %X - Hexadecimal number (uppercase letters)
arg1:
- Any parameters will be inserted at the percent (%) signs in the string_format.
sprintf(string_format,arg1, arg2, arg3,..)
Example 1
<?php $salary = 8000; $spend = 50; $name = 'David'; $msg = "%s is going to spend %u %% of his %u salary for the trip to China"; $str = sprintf($msg, $name, $spend, $salary); echo $str; ?>
Output
David is going to spend 50 % of his 8000 salary for the trip to China
Example 2
<?php $stage1 = 20; $stage2 = 50; $price = 150; $msg = "Used-Iphone 4S cost %u$, this is %.2f%% (%.2f $) cheaper in January, and also %.2f%% (%.2f $) cheaper in May"; $str = sprintf($msg, $price, $stage1, (150 * ($stage1 / 100)), $stage2, (150 * ($stage2 / 100))); echo $str; ?>
Output
Used-Iphone 4S cost 150$, this is 20.00% (30.00 $) cheaper in January, and also 50.00% (75.00 $) cheaper in May
Example 3
<?php $stunum = 5; $location = 'Lab'; $msg = 'There are %d students in the %s'; $str = sprintf($msg, $stunum, $location); echo $str; ?>
Output
There are 5 students in the lab
Example 4
<?php
$number = 362525200;
echo sprintf("%.3e", $number);
Output
3.625e+8
Example 5
<?php
$n = 88786838;
$u = -88786838;
$c = 65; // ASCII 65 is 'A'
// notice the double %%, this prints a literal '%' character
echo sprintf("%%b = '%b'\n", $n). '<br/>'; // binary representation
echo sprintf("%%c = '%c'\n", $c). '<br/>'; // print the ascii character, same as chr() function
echo sprintf("%%d = '%d'\n", $n). '<br/>'; // standard integer representation
echo sprintf("%%e = '%e'\n", $n). '<br/>'; // scientific notation
echo sprintf("%%u = '%u'\n", $n). '<br/>'; // unsigned integer representation of a positive integer
echo sprintf("%%u = '%u'\n", $u). '<br/>'; // unsigned integer representation of a negative integer
echo sprintf("%%f = '%f'\n", $n). '<br/>'; // floating point representation
echo sprintf("%%o = '%o'\n", $n). '<br/>'; // octal representation
echo sprintf("%%s = '%s'\n", $n). '<br/>'; // string representation
echo sprintf("%%x = '%x'\n", $n). '<br/>'; // hexadecimal representation (lower-case)
echo sprintf("%%X = '%X'\n", $n). '<br/>'; // hexadecimal representation (upper-case)
echo sprintf("%%+d = '%+d'\n", $n). '<br/>'; // sign specifier on a positive integer
echo sprintf("%%+d = '%+d'\n", $u). '<br/>'; // sign specifier on a negative integer
?>
Output
%b = '101010010101100011110010110' %c = 'A' %d = '88786838' %e = '8.878684e+7' %u = '88786838' %u = '4206180458' %f = '88786838.000000' %o = '522543626' %s = '88786838' %x = '54ac796' %X = '54AC796' %+d = '+88786838' %+d = '-88786838'
