php function sprintf. vsprintf (Placeholder)

The sprintf () format string is written to a variable.

vsprintf () format the string in some of the write variables.

<?PHP$NUM1 = 123; $num 2 = 456; $txt = vsprintf ("%f%f", Array ($num 1, $num 2)); Echo $txt;? > Output: 123.000000456.000000

　　

Grammar

1. sprintf(format,arg1,arg2,arg+ +)

Parameters	Description
Format	Necessary. Conversion format.
Arg1	Necessary. Specifies the parameter that is inserted into the first% symbol in the format string.
Arg2	Optional. Specifies the parameter that is inserted into the second% symbol in the format string.
arg++	Optional. Specifies the parameter that is inserted into the format string third to fourth, and so on, in the% symbol.

Description

The parameters format is the converted format, starting with the percent sign ("%") to the end of the converted character. The following possible format values are:

• Percent-return percentage symbol
• %b-Binary number
• %c-Characters in accordance with ASCII values
• %d-Signed decimal number
• %e-Sustainable counting method (e.g. 1.5e+3)
• %u-Unsigned decimal number
• %f-Floating point (Local settings Aware)
• %F-Floating point number (not local settings aware)
• %o-Eight binary number
• %s-String
• %x-16 binary number (lowercase letters)
• %x-16 decimal digits (uppercase letters)

arg1, arg2, + + etc parameters will be inserted into the main string percent percent (%) Symbol. This function is executed step-by. In the first% symbol, insert arg1, insert arg2at the second% symbol, and so on.

Hints and Notes

Note: If the% symbol is more than the arg parameter, you must use a placeholder. The placeholder is inserted after the% symbol and consists of a number and a "\$". See Example 3.

Tip: Related functions: fprintf (), printf (), vfprintf (), vprintf (), and vsprintf ().

php function sprintf. vsprintf (Placeholder)