Usage and Examples of PHP vprintf() Function

format

Specify the string and how to format the variables within it

Possible format values:

• %% - Returns a percentage sign %

• %b - Binary number

• %c - Character corresponding to ASCII value

• %d - Decimal number with a sign (negative, 0, positive)

• %e - Use lowercase scientific notation (for example 1.2e+2

• %E - Use uppercase scientific notation (for example 1.2E+2

• 㩵n - Decimal number without a sign (greater than or equal to 0)

• %f - Floating-point number (local setting)

• %F - Floating-point number (non-local setting)

• %g - Short %e and %f

• %G - Short %E and %f

• %o - Octal number

• %s - String

• %x - Hexadecimal number (lowercase letters)

• %X - Hexadecimal number (uppercase letters)

Additional format values. They must be placed between % and the letter (for example %.2f):

• + (Add + or - to define the sign of the number. By default, only negative numbers are marked, and positive numbers are not marked)

• ' (Specify what to use as padding, the default is a space. It must be used with the width specifier. For example: %'x20s (Use "x" as the padding))

• - (Left align the variable value)

• ][0-9](Specify the minimum width of the variable value)

• ].[0-9](Specify the number of decimal places or the maximum string length)

Note:If multiple format values are used, they must be used in the order specified above and cannot be rearranged.

argarray

Specify the array to insert parameters, which will be inserted into the format string at the % symbol.