Create rgba_to_hex.php

Reverse conversion
crankygamer · Dec 15, 2022 · 0c708dc · 0c708dc
1 parent 252a987
commit 0c708dc
Showing 1 changed file with 21 additions and 0 deletions.
diff --git a/rgba_to_hex.php b/rgba_to_hex.php
@@ -0,0 +1,21 @@
+function convert_rgba_to_hex($string) {
+	$rgba  = array();
+	$hex   = '';
+	$regex = '#\((([^()]+|(?R))*)\)#';
+	if (preg_match_all($regex, $string ,$matches)) {
+    	$rgba = explode(',', implode(' ', $matches[1]));
+	} else {
+		$rgba = explode(',', $string);
+	}
+
+	$rr = dechex($rgba['0']);
+	$gg = dechex($rgba['1']);
+	$bb = dechex($rgba['2']);
+	$aa = '';
+
+	if (array_key_exists('3', $rgba)) {
+		$aa = dechex($rgba['3'] * 255);
+	}
+
+	return strtoupper("#$rr$gg$bb");
+}