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<?php
/**
* Sanitize field value before saving.
*
* @package Meta Box
*/
/**
* Sanitize class.
*/
class RWMB_Sanitizer {
/**
* Built-in callbacks for some specific types.
*
* @var array
*/
protected $callbacks = array(
'email' => 'sanitize_email',
'file_input' => 'esc_url_raw',
'oembed' => 'esc_url_raw',
'url' => 'esc_url_raw',
);
/**
* Register hook to sanitize field value.
*/
public function init() {
// Built-in callback.
foreach ( $this->callbacks as $type => $callback ) {
add_filter( "rwmb_{$type}_sanitize", $callback );
}
// Custom callback.
$types = array_diff( get_class_methods( __CLASS__ ), array( 'init' ) );
foreach ( $types as $type ) {
add_filter( "rwmb_{$type}_sanitize", array( $this, $type ) );
}
}
/**
* Set the value of checkbox to 1 or 0 instead of 'checked' and empty string.
* This prevents using default value once the checkbox has been unchecked.
*
* @link https://github.com/rilwis/meta-box/issues/6
* @param string $value Checkbox value.
* @return int
*/
public function checkbox( $value ) {
return (int) ! empty( $value );
}
}
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