Align canonical Settings API behavior

Author: ajaydsouza

class-options-api.php

@@ -225,6 +225,7 @@ public static function update_option( $key = '', $value = false ) {
 		}
 
 		$options = get_option( self::SETTINGS_OPTION, array() );
+		$options = is_array( $options ) ? $options : array();
 
 		/**
 		 * Filters the value before it is saved.
@@ -284,6 +285,7 @@ public static function delete_option( $key = '' ) {
 		}
 
 		$options = get_option( self::SETTINGS_OPTION, array() );
+		$options = is_array( $options ) ? $options : array();
 
 		if ( isset( $options[ $key ] ) ) {
 			unset( $options[ $key ] );

settings/class-settings-form.php

@@ -997,7 +997,7 @@ public function callback_number( $args ) {
 		$value       = $this->get_field_value( $args );
 		$max         = isset( $args['max'] ) ? intval( $args['max'] ) : 999999;
 		$min         = isset( $args['min'] ) ? intval( $args['min'] ) : 0;
-		$step        = isset( $args['step'] ) ? intval( $args['step'] ) : 1;
+		$step        = isset( $args['step'] ) && ( is_numeric( $args['step'] ) || 'any' === $args['step'] ) ? $args['step'] : 1;
 		$size        = $args['size'] ?? 'regular';
 		$placeholder = $this->get_placeholder_attribute( $args );
 		$attributes  = $this->get_boolean_attributes( $args );