relliv · February 26, 2019 18:56
diff --git a/hex-to-rgba.php b/hex-to-rgba.php
 <?php
 /**
 * Hex to RGBa
 *
 * @param string $color: hex color
 * @param bool|float $opacity: alpha channel, optional
 * @param string $default: default return value
 */
 function hex2rgba($color, $opacity = false, $default = 'rgb(0,0,0)')
 {
    preg_match('/#?([a-fA-F-0-9]{3,8})/', $color, $match);

    if ($match){
        preg_match_all('/#?([a-fA-F-0-9]{1,2})([a-fA-F-0-9]{1,2})([a-fA-F-0-9]{1,2})/', $color, $matches);

        if ($matches){
            unset($matches[0]);
        
            foreach ($matches as $key => $value) {
                $matches[$key] = $value[0];
            }
    
            // hexadec to rgb
            $rgb = implode(',', array_map('hexdec', $matches));

            // set alpha channel
            if ($opacity) {
                $opacity = (float)$opacity > 1 ? 1 : $opacity;

                return "rgba({$rgb}, {$opacity})";
            }

            // default rgb color
            return "rgb({$rgb})";
        }
    }

    return $default ? $default : 'rgb(0,0,0)';
 }


 echo '<body style="background-color: green">Egoi Develoer Egoist Developer Developer mi Egoist <div style="background-color: '.hex2rgba('#4286f4', .3).'; height: 600px; width: 600px;"></div></body>';
	<?php
	/**
	* Hex to RGBa
	*
	* @param string $color: hex color
	* @param bool\|float $opacity: alpha channel, optional
	* @param string $default: default return value
	*/
	function hex2rgba($color, $opacity = false, $default = 'rgb(0,0,0)')
	{
	preg_match('/#?([a-fA-F-0-9]{3,8})/', $color, $match);

	if ($match){
	preg_match_all('/#?([a-fA-F-0-9]{1,2})([a-fA-F-0-9]{1,2})([a-fA-F-0-9]{1,2})/', $color, $matches);

	if ($matches){
	unset($matches[0]);

	foreach ($matches as $key => $value) {
	$matches[$key] = $value[0];
	}

	// hexadec to rgb
	$rgb = implode(',', array_map('hexdec', $matches));

	// set alpha channel
	if ($opacity) {
	$opacity = (float)$opacity > 1 ? 1 : $opacity;

	return "rgba({$rgb}, {$opacity})";
	}

	// default rgb color
	return "rgb({$rgb})";
	}
	}

	return $default ? $default : 'rgb(0,0,0)';
	}


	echo '<body style="background-color: green">Egoi Develoer Egoist Developer Developer mi Egoist <div style="background-color: '.hex2rgba('#4286f4', .3).'; height: 600px; width: 600px;"></div></body>';