Created
September 22, 2019 19:13
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Convert hex 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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