This question already has an answer here:
I use this php script to get the rgb color from a jpg file:
source: https://stackoverflow.com/a/36321726/8144877
the problem is when the rgb color look like this: rgb(0, 23, 110) then the script returns this hex: 176e and not 00176e
I see that the script not showing the first two zeros, is there a way to showing all the zeros when using dechex to convert rgb to hex?
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Yes, there's a way, str_pad function is there to help you:
str_pad("176e", 6, "0", STR_PAD_LEFT); // "00176e"
Arguments:
STR_PAD_LEFT is needed to pad on the left side