Re: newbie question

On Mon, Oct 13, 2003 at 03:23:53AM +1000, Wang Feng wrote: : : "1. An optional padding specifier that says what character will be used for : padding the results to the right string size. This may be a space character : or a 0 (zero character). The default is to pad with spaces. An alternate : padding character can be specified by prefixing it with a single quote ('). : See the examples below." : "3. An optional number, a width specifier that says how many characters : (minimum) this conversion should result in." : ---- http://au.php.net/manual/en/function.sprintf.php : : Assume that $price=.65; then the "%0.2f" yields 0.65. : : If we follow what the manual says, then can you tell me what the 0 is used : for? Is it a (optional) paddinng spcifier OR is it a (optional) width : specifier OR both? And why does it yiled 0.65 rather than .65? : : (The manual doesn't explain things clear, man.) The PHP manual is vague in several sections. I wonder how bug reports get submitted for it? The optional specifiers to the left of the decimal place have a psuedo last-to-first precedence. For example: $price = .65; printf("'%8.2f'\n", $price); -> ' 0.65' This shows that there are 8 characters reserved for the number to the left of the decimal. Therefore, '8' is the width specifier. printf("'%-8.2f'\n", $price); -> '0.65 ' printf("'%08.2f'\n", $price); -> '00000000.65' printf("'%0-8.2f'\n", $price); -> '0.650000000'