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 length of the outputted string on success.
Syntax:
vprintf (format, array_arguments)
Parameters:
- format: it is required parameter it specifies how will the string formatted.
Possible format values:- %% – Returns a percent sign
- %b – Binary number
- %d – Signed decimal number (negative, zero or positive)
- %u – Unsigned decimal number (equal to or greater than zero)
- %x – Hexadecimal number (lowercase letters)
- %X – Hexadecimal number (uppercase letters)
- %f – Floating-point number (local settings aware)
- %F – Floating-point number (not local settings aware)
- %o – Octal number
- %c – The character according to the ASCII value
- %s – String
- %e – Scientific notation using a lowercase (e.g. 1.2e+2)
- %g – shorter of %e and %f
- %E – Scientific notation using a uppercase (e.g. 1.2E+2)
- %G – shorter of %E and %f
- array_arguments array arguments here for which need to format.
Program 1: This program will be showing uses of % b d u x X f F o formats using vprintf function.
php
<?php $obj = new stdClass(); $obj->val1 = 9; $obj->val2 = 10; $obj->val3 = 15; $obj->val4 = -1; echo "using %% format: "; // below is using of vprintf function // for printing % format vprintf('%% %% %% %%', $obj); echo "\nusing %b format: "; // below is using of vprintf function // for format %b will print equivalent // binary number vprintf('%b %b %b %b', $obj); echo "\nusing %d format: "; // below is using of vprintf function // for %d format vprintf('%d %d %d %d', $obj); echo "\nusing %u format: "; // below is using of vprintf function // for % u (unsigned decimal) format vprintf('%u %u %u %u', $obj); echo "\nusing %x format: "; // below is using of vprintf function // for %x Hexadecimal number (lowercase letters) format vprintf('%x %x %x %x', $obj); echo "\nusing %X format: "; // below is using of vprintf function // for %X Hexadecimal number (uppercase letters) format vprintf('%X %X %X %X', $obj); echo "\nusing %f format: "; // below is using of vprintf function // for %f Floating-point number (local settings aware) vprintf('%f %f %f %f', $obj); echo "\nusing %F format: "; // below is using of vprintf function // for %F Floating-point number (not local settings aware) vprintf('%F %F %F %F', $obj); echo "\nusing %o format: "; // below is using of vprintf function // for %o octal number vprintf('%o %o %o %o', $obj); ?> |
Output:
using %% format: % % % % using %b format: 1001 1010 1111 1111111111111111111111111111111111111111111111111111111111111111 using %d format: 9 10 15 -1 using %u format: 9 10 15 18446744073709551615 using %x format: 9 a f ffffffffffffffff using %X format: 9 A F FFFFFFFFFFFFFFFF using %f format: 9.000000 10.000000 15.000000 -1.000000 using %F format: 9.000000 10.000000 15.000000 -1.000000 using %o format: 11 12 17 1777777777777777777777
Program 2: This program will be showing uses of c and s formats using vprintf function.
PHP
<?php $obj = new stdClass(); $obj->val1 = 65; $obj->val2 = 66; $obj->val3 = 97; $obj->val4 = 98; echo "using %c format: "; // below is using of vprintf function // for printing %c format will be print // ASCII character vprintf('%c %c %c %c', $obj); echo "\nusing %s format: "; // below is using of vprintf function // for format %s will print as string vprintf('%s %s %s %s', $obj); ?> |
Output:
using %c format: A B a b using %s format: 65 66 97 98
Program 3: This program will be showing uses of e g E G formats using vprintf function.
php
<?php $obj = new stdClass(); $obj->val1 = 999999999; $obj->val2 = 145956566; $obj->val3 = 111111111; $obj->val4 = 100000000; echo "using %e format: "; // below is using of vprintf function // for printing %e format will be print // Scientific notation (lowercase) vprintf('%e %e %e %e', $obj); echo"\nusing %g format: "; // below is using of vprintf function // for format %g will be print // Shorter of %e and %f vprintf('%g %g %g %g', $obj); echo "\nusing %E format: "; // below is using of vprintf function // for format %E will print // Scientific notation (uppercase) vprintf('%E %E %E %E', $obj); echo "\nusing %G format: "; // below is using of vprintf function // for format %G will be print // Shorter of %E and %f vprintf('%G %G %G %G', $obj); ?> |
Output:
using %e format: 1.000000e+9 1.459566e+8 1.111111e+8 1.000000e+8 using %g format: 1.0e+9 1.45957e+8 1.11111e+8 1.0e+8 using %E format: 1.000000E+9 1.459566E+8 1.111111E+8 1.000000E+8 using %G format: 1.0E+9 1.45957E+8 1.11111E+8 1.0E+8
Program 4: In this program, all four variable will be print respectively 10 20 30 40 space separated using vprintf function.
PHP
<?php $obj = new stdClass(); $obj->val1 = 'gfg 1'; $obj->val2 = 'gfg 2'; $obj->val3 = 'gfg 3'; $obj->val4 = 'gfg 4'; // below is using of vprintf function vprintf('%-10s %-20s %-30s %-40s', $obj); ?> |
Output:
gfg 1 gfg 2 gfg 3 gfg 4
