Add type "boolean" in "arg" base.php function

base.php

@@ -94,6 +94,9 @@ function arg($arg, $default=null, $validator=null) {
 	} else if (strpos($arg,'d:') === 0) {
 		$type = 'double';
 		$arg = substr($arg, 2);
+	} else if (strpos($arg, 'b:') === 0) {
+		$type = 'boolean';
+		$arg = substr($arg, 2);
 	} else if (strpos($arg,'b64:') === 0) {
 		$type = 'base64';
 		$arg = substr($arg, 4);
@@ -124,6 +127,8 @@ function arg($arg, $default=null, $validator=null) {
 		$value = intval($value);
 	else if ($type === 'double')
 		$value = doubleval($value);
+	else if ($type === 'boolean')
+		$value = in_array($value,[1,"1","yes","true"]) ? true : false;
 	else if ($type === 'base64')
 		$value = base64_decode($value);