Usage analysis of sprintf () function in PHP

This article describes the use of PHP in the sprintf () function, the need for friends, refer to the next bar. sprintf function Define and use the sprintf () function to write a formatted string into a variable. Grammar sprintf (format,arg1,arg2,arg++) Parameter description Format required. Conversion format. Arg1 required. Specifies the parameter that is inserted into the first% symbol in the format string. Arg2 is optional. Specifies the parameter that is inserted into the second% symbol in the format string. arg++ is 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 are the possible format values: Percent-return percentage symbol%b-binary number%c-character%d according to ASCII value-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 (not local Settings aware)%o-eight binary number%s-string%x-16 binary (lowercase)%x-16 decimal number (uppercase letter) 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 arg2 at the second% symbol, and so on. Hints and Comment notes: 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 "\$". Tip: Related functions: fprintf (), printf (), vfprintf (), vprintf (), and vsprintf (). The above is excerpted from the PHP manual for your reference.

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