class WP_Customize_Image_Control {}

User Contributed Notes

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   Ross Wintle 9 years ago

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   Note that this control stores the URL of the image. If you want to store the ID of the image’s attachment then use WP_Customize_Media_Control.
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   Chetan Satasiya 8 years ago

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   This class is used with the Theme Customization API to render the custom image control on the Theme Customizer in WordPress 3.4 or newer.

   $wp_customize->add_control(
          new WP_Customize_Image_Control(
              $wp_customize,
              'logo',
              array(
                  'label'      => __( 'Upload a logo', 'theme_name' ),
                  'section'    => 'your_section_id',
                  'settings'   => 'your_setting_id',
                  'context'    => 'your_setting_context' 
              )
          )
      );
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   Mehedi Foysal 4 years ago

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   $wp_customize->add_setting( 'logo', array(
   	'capability'        => 'edit_theme_options',
   	'default'           => '',
   	'sanitize_callback' => 'ic_sanitize_image',
   ) );
   $wp_customize->add_control( new WP_Customize_Image_Control( $wp_customize, 'logo',
   	array(
   		'label'    => __( 'Logo', 'text-domain' ),
   		'section'  => 'general',
   		'settings' => 'logo',
   	)
   ) );

   Callback function

   /**
    * Validation: image
    * Control: text, WP_Customize_Image_Control
    *
    * @uses    wp_check_filetype()        https://developer.wordpress.org/reference/functions/wp_check_filetype/
    * @uses    in_array()                http://php.net/manual/en/function.in-array.php
    */
   function ic_sanitize_image( $file, $setting ) {
   
   	$mimes = array(
   		'jpg|jpeg|jpe' => 'image/jpeg',
   		'gif'          => 'image/gif',
   		'png'          => 'image/png',
   		'bmp'          => 'image/bmp',
   		'tif|tiff'     => 'image/tiff',
   		'ico'          => 'image/x-icon'
   	);
   
   	//check file type from file name
   	$file_ext = wp_check_filetype( $file, $mimes );
   
   	//if file has a valid mime type return it, otherwise return default
   	return ( $file_ext['ext'] ? $file : $setting->default );
   }