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Convert hexdec color string to rgb(a) string
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<? | |
/* Convert hexdec color string to rgb(a) string */ | |
function hex2rgba($color, $opacity = false) { | |
$default = 'rgb(0,0,0)'; | |
//Return default if no color provided | |
if (empty($color)) return $default; | |
//Sanitize $color if "#" is provided | |
if ($color[0] == '#') { | |
$color = substr($color, 1); | |
} | |
//Check if color has 6 or 3 characters and get values | |
if (strlen($color) == 6) { | |
$hex = array( | |
$color[0].$color[1], | |
$color[2].$color[3], | |
$color[4].$color[5] | |
); | |
} | |
elseif (strlen($color) == 3) { | |
$hex = array( | |
$color[0].$color[0], | |
$color[1].$color[1], | |
$color[2].$color[2] | |
); | |
} | |
else { | |
return $default; | |
} | |
//Convert hexadec to rgb | |
$rgb = array_map('hexdec', $hex); | |
//Check if opacity is set(rgba or rgb) | |
if ($opacity) { | |
if (abs($opacity) > 1) $opacity = 1.0; | |
$output = 'rgba('.implode(",", $rgb).','.$opacity.')'; | |
} | |
else { | |
$output = 'rgb('.implode(",", $rgb).')'; | |
} | |
//Return rgb(a) color string | |
return $output; |
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