min, max and step attributes added in number field

Author: Md. Kowsar Hossain

src/class.settings-api.php

@@ -133,6 +133,9 @@ function admin_init() {
                     'sanitize_callback' => isset( $option['sanitize_callback'] ) ? $option['sanitize_callback'] : '',
                     'type'              => $type,
                     'placeholder'       => isset( $option['placeholder'] ) ? $option['placeholder'] : '',
+                    'min'               => isset( $option['min'] ) ? $option['min'] : '',
+                    'max'               => isset( $option['max'] ) ? $option['max'] : '',
+                    'step'              => isset( $option['step'] ) ? $option['step'] : '',
                 );
 
                 add_settings_field( $section . '[' . $option['name'] . ']', $option['label'], array( $this, 'callback_' . $type ), $section, $section, $args );
@@ -193,7 +196,18 @@ function callback_url( $args ) {
      * @param array   $args settings field args
      */
     function callback_number( $args ) {
-        $this->callback_text( $args );
+        $value       = esc_attr( $this->get_option( $args['id'], $args['section'], $args['std'] ) );
+        $size        = isset( $args['size'] ) && !is_null( $args['size'] ) ? $args['size'] : 'regular';
+        $type        = isset( $args['type'] ) ? $args['type'] : 'number';
+        $placeholder = empty( $args['placeholder'] ) ? '' : ' placeholder="'.$args['placeholder'].'"';
+        $min         = empty( $args['min'] ) ? '' : ' min="'.$args['min'].'"';
+        $max         = empty( $args['max'] ) ? '' : ' max="'.$args['max'].'"';
+        $step        = empty( $args['step'] ) ? '' : ' step="1"';
+
+        $html        = sprintf( '<input type="%1$s" class="%2$s-number" id="%3$s[%4$s]" name="%3$s[%4$s]" value="%5$s"%6$s%7$s%8$s%9$s/>', $type, $size, $args['section'], $args['id'], $value, $placeholder, $min, $max, $step );
+        $html       .= $this->get_field_description( $args );
+
+        echo $html;
     }
 
     /**