<?php

/**
 * intiger value sanitization
 */
function themecon_intval( $value ) {

    if( $value > 0 ){
        return (int) $value;
    }else if( $value = '' || $value < 0 ){
        return $value = '';
    }else{
        return $value = '';
    }
}


/**
 * Float value sanitization
 */
function themecon_sanitize_float( $value ) {
    return filter_var($value, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);
}

/**
 * Select sanitization
 *
 * @param string               $input   Slug to sanitize.
 * @param WP_Customize_Setting $setting Setting instance.
 * @return string Sanitized slug if it is a valid choice; otherwise, the setting default.
 */
function themecon_sanitize_select( $input, $setting ){ 
    
    //input must be a slug: lowercase alphanumeric characters, dashes and underscores are allowed only
    
    //get the list of possible select options 
    $choices = $setting->manager->get_control( $setting->id.'_control' )->choices;

    //return input if valid or return default option
    return ( array_key_exists( $input, $choices ) ? $input : $setting->default ); 

}

/**
 *Checkbox sanitization
 */
function themecon_sanitize_checkbox( $input ){
    //returns true if checkbox is checked
    return ( $input ? true : false );
}


function themecon_validate_image( $input, $default = '' ) {
	
	$img_types = array(
		'jpg|jpeg|jpe' => 'image/jpeg',
		'gif'          => 'image/gif',
		'png'          => 'image/png',
	);
	
	$file = wp_check_filetype( $input, $img_types );
	
	return ( $file['ext'] ? $input : $default );
}


?>