I want to convert my hex color from a color input (example: #FFFFFF) to a PHP hex number format (example: 0xFFFFFF).
i tried to replace the # with 0x by using str_replace but this converted it to a string, I want to keep it a number.
Any solution?
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You can use the number() function of PHP to convert your string into a number.Lajos Arpad– Lajos Arpad2014-01-29 16:40:52 +00:00Commented Jan 29, 2014 at 16:40
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hexdec() & dechex()SubjectCurio– SubjectCurio2014-01-29 16:43:23 +00:00Commented Jan 29, 2014 at 16:43
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@LajosArpad what number() !!?Rafik Haceb– Rafik Haceb2014-01-29 16:54:41 +00:00Commented Jan 29, 2014 at 16:54
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This here will do all sorts of conversions.Eric Shoberg– Eric Shoberg2019-03-22 14:24:26 +00:00Commented Mar 22, 2019 at 14:24
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2 Answers
Perhaps this function is what you need?
http://www.php.net/manual/en/function.hexdec.php
"Returns the decimal equivalent of the hexadecimal number represented by the hex_string argument. hexdec() converts a hexadecimal string to a decimal number.
hexdec() will ignore any non-hexadecimal characters it encounters."
Some added info:
dechex() will give you a string containing a hex representation of the number if you need it, but it seems you should be dealing with an integer if it's a number that you need to pass around.
2 Comments
Rafik Haceb
my question is simple: i want to convert css color representation in hex (for example #FFFFFF) to PHP hex number (for example 0x000000).
Manny
@RafikHaceb I added some context to my answer.
Can you try this, Found a function here
function hex2rgb($hex) {
$hex = str_replace("#", "", $hex);
if(strlen($hex) == 3) {
$r = hexdec(substr($hex,0,1).substr($hex,0,1));
$g = hexdec(substr($hex,1,1).substr($hex,1,1));
$b = hexdec(substr($hex,2,1).substr($hex,2,1));
} else {
$r = hexdec(substr($hex,0,2));
$g = hexdec(substr($hex,2,2));
$b = hexdec(substr($hex,4,2));
}
$rgb = array($r, $g, $b);
return implode("", $rgb); // returns the rgb values separated by commas
//return $rgb; // returns an array with the rgb values
}
echo $rgb = hex2rgb("#cc0");
4 Comments
Krish R
@BeatAlex. Thanks for pointing out, there is an option for both array and number aswell!
Albzi
I somehow deleted my comment, was an accident. But I didn't look into it and if there's a number then I apologies!
Krish R
@BeatAlex, No issues!
Rafik Haceb
I didn't ask for RGB representation , i want to convert a css color representation in hex to php hex number: #FFFFFF to 0xFFFFFF
