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<?php if ( ! defined( 'ABSPATH' ) ) exit;
/**
* Class WPN_Helper
*
* The WP Ninjas Static Helper Class
*
* Provides additional helper functionality to WordPress helper functions.
*/
final class WPN_Helper
{
/**
* @param $value
* @return array|string
*/
public static function addslashes( $value )
{
$value = is_array($value) ?
array_map(array( 'self', 'addslashes' ), $value) :
addslashes($value);
return $value;
}
/**
* @param $input
* @return array|string
*/
public static function utf8_encode( $input ){
if ( is_array( $input ) ) {
return array_map( array( 'self', 'utf8_encode' ), $input );
} elseif ( function_exists( 'utf8_encode' ) ) {
return utf8_encode( $input );
} else {
return $input;
}
}
/**
* @param $input
* @return array|string
*/
public static function utf8_decode( $input ){
if ( is_array( $input ) ) {
return array_map( array( 'self', 'utf8_decode' ), $input );
} elseif ( function_exists( 'utf8_decode' ) ) {
return utf8_decode( $input );
} else {
return $input;
}
}
/**
* Function to clean json data before json_decode.
* @since 3.2
* @param $input String
* @return String
*/
public static function json_cleanup( $input ) {
/*
* Remove any unwated (corrupted?) characters from either side of our object.
*/
$l_trim = strpos( $input, '{' );
$r_trim = strrpos( $input, '}' ) - $l_trim + 1;
return substr( $input, $l_trim, $r_trim );
}
/**
* @param $search
* @param $replace
* @param $subject
* @return mixed
*/
public static function str_replace( $search, $replace, $subject ){
if( is_array( $subject ) ){
foreach( $subject as &$oneSubject )
$oneSubject = WPN_Helper::str_replace($search, $replace, $oneSubject);
unset($oneSubject);
return $subject;
} else {
return str_replace($search, $replace, $subject);
}
}
/**
* @param $value
* @param int $flag
* @return array|string
*/
public static function html_entity_decode( $value, $flag = ENT_COMPAT ){
$value = is_array($value) ?
array_map( array( 'self', 'html_entity_decode' ), $value) :
html_entity_decode( $value, $flag );
return $value;
}
/**
* @param $value
* @return array|string
*/
public static function htmlspecialchars( $value ){
$value = is_array($value) ?
array_map( array( 'self', 'htmlspecialchars' ), $value) :
htmlspecialchars( $value );
return $value;
}
/**
* @param $value
* @return array|string
*/
public static function stripslashes( $value ){
$value = is_array($value) ?
array_map( array( 'self', 'stripslashes' ), $value) :
stripslashes($value);
return $value;
}
/**
* @param $value
* @return array|string
*/
public static function esc_html( $value )
{
$value = is_array($value) ?
array_map( array( 'self', 'esc_html' ), $value) :
esc_html($value);
return $value;
}
/**
* @param $value
* @return array|string
*/
public static function kses_post( $value )
{
$value = is_array( $value ) ?
array_map( array( 'self', 'kses_post' ), $value ) :
wp_kses_post($value);
return $value;
}
/**
* @param $value
* @return array|string
*/
public static function strip_tags( $value )
{
$value = is_array( $value ) ?
array_map( array( 'self', 'strip_tags' ), $value ) :
strip_tags( $value );
return $value;
}
/**
* String to Bytes
*
* Converts PHP settings from a string to bytes.
*
* @param $size
* @return float
*/
public static function string_to_bytes( $size )
{
// Remove the non-unit characters from the size.
$unit = preg_replace('/[^bkmgtpezy]/i', '', $size);
// Remove the non-numeric characters from the size.
$size = preg_replace('/[^0-9\.]/', '', $size);
if ( $unit && is_array( $unit ) ) {
// Find the position of the unit in the ordered string which is the power of magnitude to multiply a kilobyte by.
$size *= pow( 1024, stripos( 'bkmgtpezy', $unit[0] ) );
}
return round($size);
}
public static function str_putcsv( $array, $delimiter = ',', $enclosure = '"', $terminator = "\n" ) {
// First convert associative array to numeric indexed array
$workArray = array();
foreach ($array as $key => $value) {
$workArray[] = $value;
}
$returnString = ''; # Initialize return string
$arraySize = count( $workArray ); # Get size of array
for ( $i=0; $i<$arraySize; $i++ ) {
// Nested array, process nest item
if ( is_array( $workArray[$i] ) ) {
$returnString .= self::str_putcsv( $workArray[$i], $delimiter, $enclosure, $terminator );
} else {
switch ( gettype( $workArray[$i] ) ) {
// Manually set some strings
case "NULL": $_spFormat = ''; break;
case "boolean": $_spFormat = ($workArray[$i] == true) ? 'true': 'false'; break;
// Make sure sprintf has a good datatype to work with
case "integer": $_spFormat = '%i'; break;
case "double": $_spFormat = '%0.2f'; break;
case "string": $_spFormat = '%s'; $workArray[$i] = str_replace("$enclosure", "$enclosure$enclosure", $workArray[$i]); break;
// Unknown or invalid items for a csv - note: the datatype of array is already handled above, assuming the data is nested
case "object":
case "resource":
default: $_spFormat = ''; break;
}
$returnString .= sprintf('%2$s'.$_spFormat.'%2$s', $workArray[$i], $enclosure);
$returnString .= ($i < ($arraySize-1)) ? $delimiter : $terminator;
}
}
// Done the workload, return the output information
return $returnString;
}
public static function get_query_string( $key, $default = FALSE )
{
if( ! isset( $_GET[ $key ] ) ) return $default;
$value = self::htmlspecialchars( $_GET[ $key ] );
if( is_array( $value ) ) $value = reset( $value );
return $value;
}
public static function sanitize_text_field( $data )
{
if( is_array( $data ) ){
return array_map( array( 'self', 'sanitize_text_field' ), $data );
}
return sanitize_text_field( $data );
}
public static function get_plugin_version( $plugin )
{
$plugins = get_plugins();
if( ! isset( $plugins[ $plugin ] ) ) return false;
return $plugins[ $plugin ][ 'Version' ];
}
public static function is_func_disabled( $function )
{
if( ! function_exists( $function ) ) return true;
$disabled = explode( ',', ini_get( 'disable_functions' ) );
return in_array( $function, $disabled );
}
public static function maybe_unserialize( $original )
{
// Repalcement for https://codex.wordpress.org/Function_Reference/maybe_unserialize
if ( is_serialized( $original ) ){
// Ported with php5.2 support from https://magp.ie/2014/08/13/php-unserialize-string-after-non-utf8-characters-stripped-out/
$parsed = preg_replace_callback( '!s:(\d+):"(.*?)";!s', array( 'self', 'parse_utf8_serialized' ), $original );
$parsed = @unserialize( $parsed );
return ( $parsed ) ? $parsed : unserialize( $original ); // Fallback if parse error.
}
return $original;
}
/**
* Function to fetch our cache from the upgrades table (if it exists there).
*
* @param $id (int) The form ID.
*
* @since 3.3.7
*/
public static function get_nf_cache( $id ) {
// See if we have the data in our table already.
global $wpdb;
$sql = "SELECT cache FROM `{$wpdb->prefix}nf3_upgrades` WHERE id = " . intval( $id );
$result = $wpdb->get_results( $sql, 'ARRAY_A' );
// If so...
if ( ! empty( $result ) ) {
// Unserialize the result.
$value = WPN_Helper::maybe_unserialize( $result[ 0 ][ 'cache' ] );
// Return it.
return $value;
} // Otherwise... (We don't have the data.)
else {
// Get it from the options table.
return get_option( 'nf_form_' . $id );
}
}
/**
* Function to insert or update our cache in the upgrades table (if it exists).
*
* @param $id (int) The form ID.
* @param $data (string) The form cache.
*
* @since 3.3.7
*/
public static function update_nf_cache( $id, $data ) {
// Define our current stage here for use as we run various upgrades.
$CURRENT_STAGE = 1;
// Serialize our data.
$cache = serialize( $data );
global $wpdb;
// See if we've already got a record.
$sql = "SELECT id FROM `{$wpdb->prefix}nf3_upgrades` WHERE id = " . intval( $id );
$result = $wpdb->get_results( $sql, 'ARRAY_A' );
// If we don't already have the data...
if ( empty( $result ) ) {
// Insert it.
$sql = $wpdb->prepare( "INSERT INTO `{$wpdb->prefix}nf3_upgrades` (id, cache, stage) VALUES (%d, %s, %s)", intval( $id ), $cache, $CURRENT_STAGE);
} // Otherwise... (We do have the data.)
else {
// Update the existing record.
$sql = $wpdb->prepare( "UPDATE `{$wpdb->prefix}nf3_upgrades` SET cache = %s WHERE id = %d", $cache, intval( $id ) ) ;
}
$wpdb->query( $sql );
}
/**
* Function to delete our cache.
*
* @param $id (int) The form ID.
*
* @since 3.3.7
*/
public static function delete_nf_cache( $id ) {
global $wpdb;
$sql = "DELETE FROM `{$wpdb->prefix}nf3_upgrades` WHERE id = " . intval( $id );
$wpdb->query( $sql );
delete_option( 'nf_form_' . intval( $id ) );
}
private static function parse_utf8_serialized( $matches )
{
if ( isset( $matches[2] ) ){
return 's:'.strlen($matches[2]).':"'.$matches[2].'";';
}
}
} // End Class WPN_Helper
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