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Editing File: common_helper.php

<?php

/* 
 * Copyright (C) Wayne Purton-Smith - All Rights Reserved
 * Unauthorized copying of this file or removing this paragraph, via any medium is strictly prohibited
 * Proprietary and confidential
 * Written by Wayne Purton-Smith <waynepurtonsmith@hotmail.co.uk> February 2014
 */

function display_date($format, $timestamp = NULL)
{
    $is_bst = get_instance()->common->is_bst;
    
    $timestamp = (!is_numeric($timestamp)) ? time() : $timestamp;
    $timestamp += ($is_bst) ? 3600 : 0;
    
    return date($format, $timestamp);
}

function wayne()
{
    return (isset($_SERVER['HTTP_USER_AGENT']) && stripos($_SERVER['HTTP_USER_AGENT'], 'rdit-dev') !== false);
}

function isRDIT()
{
    return (in_array(get_instance()->input->ip_address(), array('172.16.0.1', '78.33.181.81', '217.37.157.165')));
}

function help_link($identifier = '')
{
 if(wayne() && ($identifier = format_whitespace($identifier)) != '')
 {
 return '<a href="#' . url_title($identifier, '-', true) . '" class="rdit-help tooltipped" title="What is this?" style="display: inline; vertical-align: baseline;" onclick="return false;"><img src="/assets/images/icons/information.png" alt="" /></a>';
 }
 
 return '';
}

function format_display()
{
    return trim((string) implode(' ', array_filter(func_get_args())));
}

function format_list()
{
    return trim((string) implode(', ', array_filter(func_get_args())));
}

function format_address()
{
    return trim((string) implode(', ', array_map('format_name', array_filter(func_get_args()))));
}

function explode_twice($delimiter, $second_delimiter, $str)
{
    $str = explode($delimiter, $str);
    $return_data = array();
    
    foreach($str as $str_line)
    {
        list($data_key, $data_value) = explode($second_delimiter, $str_line);
        
        $return_data[$data_key] = $data_value;
    }
    
    return $return_data;
}

function access_array($array = array(), $key = '', $default = NULL)
{
    if(is_array($array) && is_string($key))
    {
        $key = (strpos($key, '.') !== false) ? explode('.', $key) : $key;

if(is_string($key))
        {
            return (array_key_exists($key, $array)) ? $array[$key] : $default;
        }
        else
        {
            $ref = $array;

while(($key_name = array_shift($key)))
            {
                if(array_key_exists($key_name, $ref))
                {
                    $ref = $ref[$key_name];
                }
                else
                {
                    return $default;
                }
            }

return $ref;
        }
    }

return $default;
}

function get_date_info($timestamp = NULL)
{
    $date_info = getdate($timestamp);
    
    if(isset($date_info['wday']))
    {
        $date_info['wday'] = ($date_info['wday'] == 0) ? 7 : $date_info['wday'];
    }
    
    return $date_info;
}

function flip_date($date_str = '')
{
    return implode('-', array_reverse(explode('-', $date_str)));
}

/*
function format_name()
{
    return str_ireplace(' and ', ' and ', trim((string) preg_replace_callback('/([a-z]+)-([a-z]{1})/i', function($matches){ return $matches[1] . '-' . strtoupper($matches[2]); }, ucwords(strtolower(implode(' ', array_filter(func_get_args())))))));
}
*/

// Credit to http://stackoverflow.com/a/17369332/264795
function format_name() 
{
    $str = strtolower(implode(' ', array_filter(func_get_args())));

$all_uppercase = 'Co|Lcs|Lcb|C\/O|Llc|Plc|Ltd';
    $all_lowercase = 'De La|De Las|Der|Van De|Van Der|Vit De|Von|Or|Of|And|Van |St';

$prefixes = 'Mc';
    $suffixes = "'S";
    $abbreviations = 'St |Mr |Mrs |Miss|Ms |Dr |Prof |Nr |Rd ';

// captialize all first letters
    $str = preg_replace_callback('/\\b(\\p{L})/u', function($matches)
    {
        return strtoupper($matches[1]);
    }, strtolower(trim($str)));
    
    if($all_uppercase) 
    {   // capitalize acronymns and initialisms e.g. PHP
        $str = preg_replace_callback("/\\b($all_uppercase)\\b/", function($matches)
        {
            return strtoupper($matches[1]);
        }, $str);
    }

if(strpos($str, " ") !== FALSE) 
    {
        $ara = explode(" ", $str);
        foreach ($ara as $k => $v) 
        {
            if($k != count($ara)-1 && !preg_match("/[aeiouyAEIOUY]/", $v)) $ara[$k] = strtoupper($v);
        }
        $str = implode(" ", $ara);
    }
    elseif(!preg_match("/[aeiouy]/", $str)) 
    {
        $str = strtoupper($str);
    }
    
    if($all_lowercase) 
    {
        $str = preg_replace_callback("/\\b($all_lowercase)\\b/", function($matches)
        {
            return strtolower($matches[1]);
        }, $str);
    }

if($prefixes) 
    {    // capitalize letter after certain name prefixes e.g 'Mc'
        $str = preg_replace_callback("/\\b($prefixes)(\\w)/", function($matches)
        {
            return $matches[1] . strtoupper($matches[2]);
        }, $str);
    }

if($suffixes) 
    {    // decapitalize certain word suffixes e.g. 's
        $str = preg_replace_callback("/(\\w)($suffixes)\\b/", function($matches)
        {
            return $matches[1] . strtolower($matches[2]);
        }, $str);
    }
    
    $str = preg_replace_callback("/(?![^\b])|^($abbreviations)/i", function($matches)
    {
        if(isset($matches[1]))
        {
            return ucfirst(strtolower($matches[1]));
        }
    }, $str);

//  Mac Exceptions
    if(strpos($str, "Macd") === FALSE || strpos($str, "Macv") === FALSE) 
    {
        $str = preg_replace("/Macd/", 'MacD', $str);
        $str = preg_replace("/Macv/", 'MacV', $str);
    }

return trim(stripcslashes($str));
}

function extract_names($name_str = '')
{
    $first_name = reset(explode(' ', $name_str, 2));
    $first_name = nullify($first_name);
    
    $last_name = reset(array_slice(explode(' ', $name_str), 1));
    $last_name = nullify($last_name);
    
    return array($first_name, $last_name);
}

function is_order_number($str = '')
{
    if(preg_match('/^#?[O|0]?([0-9]{3})-?([0-9]{3})$/i', $str, $matches))
    {
        return 'O' . $matches[1] . '-' . $matches[2];
    }
    
    return false;
}

function friendly_order_number($order_number = '')
{
    return (is_order_number($order_number)) ? preg_replace('/(^\D)|-/', '', $order_number) : '';
}

function format_customer_details($customer_details = array(), $customer_address = array(), $customer_contact = array())
{
 $customer_details = call_user_func_array('format_name', $customer_details);
 $customer_address = call_user_func_array('format_address', $customer_address);
 $contact_details = implode(' / ', array_filter($customer_contact));
 
 return implode(' ', array_filter(array($customer_details, $customer_address, $contact_details)));
}

function is_similar_address($address_one = array(), $address_two = array(), &$percentage = 0)
{
    $address_one = strtolower((is_array($address_one)) ? call_user_func_array('format_name', $address_one) : format_name($address_one));
    $address_two = strtolower((is_array($address_two)) ? call_user_func_array('format_name', $address_two) : format_name($address_two));
    
    similar_text($address_one, $address_two, $compare_percentage);
    $percentage = $compare_percentage;
    
    return ($compare_percentage >= 99);
}

function format_postcode($postcode = '')
{
    return strtoupper(remove_whitespace($postcode));
}

function lined_address()
{
 return trim((string) implode(' ', array_filter(func_get_args(), 'input_value')));
}

function two_lined_address()
{
 $address_array = array_filter(array_map('trim', func_get_args()), 'input_value');
 $address_array = array_chunk($address_array, ceil(count($address_array) / 2));
 
 list($address_line_one, $address_line_two) = $address_array;
 
 return implode(' ', array(implode(', ', $address_line_one), implode(', ', $address_line_two)));
}

function first_line_link($str = '', $link = '')
{
 return preg_replace('/^([^\n\r]*)/', '<a href="' . $link . '">$1</a>', $str);
}

function display_money($amount = 0, $use_entity = true)
{
    return (($use_entity) ? '&pound;' : '£') . number_format((float) $amount, 2);
}

function remove_whitespace($str = '')
{
    return (is_string($str)) ? preg_replace('/\s+/', '', $str) : NULL;
}

function format_whitespace($str = '', $strip = '')
{
    return (is_string($str)) ? trim(trim(preg_replace('/\s{2,}/', ' ', $str)), $strip) : NULL;
}

function cast_int_ids($data = array())
{    
    return array_values(array_filter($data, function($int)
    {
        return (($int = (int) $int) > 0) ? $int : false;
    }));
}

function week_number($date)
{
    return ceil(date('j', $date) / 7);
}

function order_status($status_id = 0)
{
    return (($order_status = get_instance()->config->item('order_status_' . $status_id))) ? $order_status : 'N/A';
}

function payment_type($type = 0)
{
    $payment_types = array
    (
        1 => 'PayPal',
        2 => 'BACS',
        3 => 'Credit Card',
        4 => 'Cash'
    );
    
    return (func_num_args() === 0) ? $payment_types : ((isset($payment_types[$type])) ? $payment_types[$type] : 'Unknown');
}

function accounting_payment_type($type = 0)
{
    $payment_types = array
    (
        PAYMENT_TYPE_CASH           => 'Cash',
        PAYMENT_TYPE_BACS           => 'BACS',
        PAYMENT_TYPE_CREDIT_CARD    => 'Credit Card',
        PAYMENT_TYPE_CHEQUE         => 'Cheque'
    );
    
    return (isset($payment_types[$type])) ? $payment_types[$type] : $payment_types[PAYMENT_TYPE_CASH];
}

if(!is_php('5.4.0'))
{
    function jsonpp($json, $istr = '    ')
    {
        $result = '';
        
        for($p = $q = $i = 0; isset($json[$p]); $p++)
        {
            $json[$p] == '"' && ($p > 0 ? $json[$p - 1] : '') != '\\' && $q = !$q;
            
            if(!$q && strchr(" \t\n\r", $json[$p]))
            {
                continue;
            }
            
            if(strchr('}]', $json[$p]) && !$q && $i--)
            {
                strchr('{[', $json[$p-1]) || $result .= "\n" . str_repeat($istr, $i);
            }
            $result .= $json[$p];
            
            if(strchr(',{[', $json[$p]) && !$q)
            {
                $i += strchr('{[', $json[$p]) === false ? 0 : 1;
                strchr('}]', $json[$p + 1]) || $result .= "\n" . str_repeat($istr, $i);
            }
        }
        
        return str_replace('":', '": ', $result);
    }
}

function input_value($str = '')
{
    return htmlentities((string) $str, ENT_QUOTES, 'UTF-8', false);
}

function per_page_dropdown($class_name = '')
{
    return form_dropdown('per_page', array
    (
        30  => '30 per page',
        60  => '60 per page',
        90  => '90 per page',
        120 => '120 per page',
        150 => '150 per page'
    ), get_instance()->common->default_per_page, 'id="results-per-page"' . (($class_name) ? ' class="' . $class_name . '"' : ''));
}

function calculate_vat($amount = 0, $vat = 0)
{
    return round($amount * (get_instance()->common->vat / 100), 2);
}

function calculate_distance($lat1 = 0, $lon1 = 0, $lat2 = 0, $lon2 = 0)
{
    $theta = $lon1 - $lon2;
    $dist = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) +  cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta));
    $dist = acos($dist);
    $dist = rad2deg($dist);
    $miles = $dist * 60 * 1.1515;

return $miles;
}

function csv_to_array($csv = '')
{
    $rows = explode(PHP_EOL, trim($csv));
    $header = str_getcsv(array_shift($rows));
   
    $data = array();
    
    foreach($rows as $row)
    {
        $data[] = array_combine($header, str_getcsv($row));
    }
    
    return $data;
}

function highlight_search($search_string = '', $string = '', $class_name = '')
{
 $escaped_string = preg_quote($search_string, '/');
 
 $start = 0;
 $matches = array();
 
 while(($position = stripos($string, $search_string, $start)) !== false)
 {
 $get_from_index = (($position - 5) > 0) ? $position - 5 : 0;
 
 $matching_string = substr($string, $get_from_index, strlen($search_string) + 10);
 $matching_string = preg_replace('/(' . $escaped_string . ')/i', '$1', $matching_string);
 
 $matches[] = $matching_string;
 $start = $position + 1;
 }
 
 return implode('...', $matches);
}

// TODO: Make this more cleaner since sorting multiple columns is going to be confusing for the client
// so best to stick to sorting one column at a time
function toggle_sortable_component($change_sort_key = NULL, $sortable_columns = array(), $append_after = '', $append_for_key = NULL)
{
    $existing_key_order = (isset($sortable_columns[$change_sort_key])) ? $sortable_columns[$change_sort_key] : 'asc';
    $sortable_columns = array($change_sort_key => $existing_key_order);
    
    if(!empty($change_sort_key))
    {
        if(isset($sortable_columns[$change_sort_key]))
        {
            $sortable_columns[$change_sort_key] = ($sortable_columns[$change_sort_key] == 'asc') ? 'desc' : 'asc';
        }
        else
        {
            $sortable_columns[$change_sort_key] = 'asc';            
        }
    }

if(strlen(($append_after = rtrim($append_after, '/'))))
    {
        if($append_for_key)
        {
            $sortable_columns = array($append_for_key => $sortable_columns);
        }
        
        return $append_after . ((strpos($append_after, '?') === false) ? '?' : '&') . rawurldecode(http_build_query($sortable_columns));
    }
    
    return $sortable_columns;
}

function parse_query_components($query = '')
{
    $query = strtolower($query);
    $keyed_query_regex = '/(^|[\w-]+)\:/';
    
    if(!preg_match($keyed_query_regex, $query))
    {
        return array('query' => $query);
    }

$query = strtolower(trim(preg_replace($keyed_query_regex, "\n$1:", $query)));
    $query = explode("\n", $query);
    
    $query_data = array('query' => array());
    
    $special_components = array('customer', 'total', 'unpaid', 'delivery', 'ordered');
    
    foreach($query as $query_component)
    {
        if(strpos($query_component, ':') !== false)
        {
            list($search_key, $search_value) = explode(':', $query_component);
            
            $search_key = trim($search_key);
            $search_value = trim($search_value);
            
            if(in_array($search_key, $special_components))
            {
                $query_data[$search_key] = $search_value;
                continue;
            }
            
            $query_component = $search_value;
        }
        
        $query_data['query'][] = $query_component;
    }
    
    $query_data['query'] = preg_replace('/\s+/', ' ', implode(' ', $query_data['query']));
    
    if(isset($query_data['total']))
    {
        if(strpos($query_data['total'], '~') !== false)
        {
            list($total, $margin) = array_filter(explode('~', $query_data['total']), function($value)
            {
                return (($value = (float) $value) > 0) ? $value : false;
            });
            
            $query_data['total'] = $total;
            $query_data['total_margin'] = $margin;
        }
    }
    
    if(isset($query_data['unpaid']))
    {
        $query_data['unpaid'] = ($query_data['unpaid'] === 'yes');
    }
    
    foreach(array('delivery', 'ordered') as $query_key)
    {
        if(isset($query_data[$query_key]) && ($date_value = trim($query_data[$query_key])))
        {
            if(preg_match_all('/[0-9-]{8,10}/i', $date_value, $matches, PREG_SET_ORDER))
            {
                $date_from = strtotime($matches[0][0] . ' 00:00:00');
                $date_to = (isset($matches[1][0])) ? strtotime($matches[1][0] . ' 23:59:59') : NULL;
                
                if($date_from > 1) $query_data[$query_key . '_date_from'] = $date_from;
                if($date_to > $date_from) $query_data[$query_key . '_date_to'] = $date_to;
            }
            
            unset($query_data[$query_key]);
        }
    }
    
    return $query_data;
}

function remove_outside_range($array = array(), $min = 0, $max = 0)
{
 return array_values(array_filter($array, function($value) use($min, $max)
 {
 return ($value >= $min && $value <= $max) ? $value : false;
 }));
}

function is_valid_postcode($postcode = '')
{
    return (bool) preg_match('/GIR[ ]?0AA|((AB|AL|B|BA|BB|BD|BH|BL|BN|BR|BS|BT|BX|CA|CB|CF|CH|CM|CO|CR|CT|CV|CW|DA|DD|DE|DG|DH|DL|DN|DT|DY|E|EC|EH|EN|EX|FK|FY|G|GL|GY|GU|HA|HD|HG|HP|HR|HS|HU|HX|IG|IM|IP|IV|JE|KA|KT|KW|KY|L|LA|LD|LE|LL|LN|LS|LU|M|ME|MK|ML|N|NE|NG|NN|NP|NR|NW|OL|OX|PA|PE|PH|PL|PO|PR|RG|RH|RM|S|SA|SE|SG|SK|SL|SM|SN|SO|SP|SR|SS|ST|SW|SY|TA|TD|TF|TN|TQ|TR|TS|TW|UB|W|WA|WC|WD|WF|WN|WR|WS|WV|YO|ZE)(\d[\dA-Z]?[ ]?\d[ABD-HJLN-UW-Z]{2}))|BFPO[ ]?\d{1,4}/i', $postcode);
}

function required_fields_filled()
{
    $number_of_passed_values = func_num_args();
    $field_values = array_filter(array_map('trim', func_get_args()));
    
    if(empty($field_values))
    {
        return false;
    }
    
    return (count($field_values) === $number_of_passed_values);
}

function referrals_dropdown($name = '', $selected = array(), $attributes = '')
{
    $referral_types = get_instance()->common->getReferrals();
    
    $options = array();
        
    foreach($referral_types as $referral_type)
    {
        $options[$referral_type->refer_id] = $referral_type->label;
    }
                
    return form_dropdown($name, $options, $selected, $attributes);
}

function payments_dropdown($name = '', $selected = array(), $attributes = '')
{
    $payment_types = get_instance()->common->getPaymentTypes();
    
    $options = array();
        
    foreach($payment_types as $payment_type)
    {
        $options[$payment_type->type_id] = $payment_type->label;
    }
                
    return form_dropdown($name, $options, $selected, $attributes);
}

function countries_dropdown($name = '', $selected = array(), $attributes = '')
{
    $countries = get_instance()->common->getCountries();
    
    $options = array();
        
    foreach($countries as $country)
    {
        $options[$country->iso] = $country->name;
    }
                
    return form_dropdown($name, $options, $selected, $attributes);
}

function iso_code_to_country($country_iso = '')
{
    if(($country_iso = strtoupper(remove_whitespace($country_iso))) != '' && strlen($country_iso) === 2)
    {
        return (($country_info = get_instance()->common->getCountries(NULL, $country_iso))) ? $country_info->name : NULL;
    }
    
    return NULL;
}

function country_to_iso_code($country_name = '')
{
    if(($country_name = strtoupper(format_whitespace($country_name))) != '')
    {
        return (($country_info = get_instance()->common->getCountries(NULL, NULL, $country_name))) ? $country_info->iso : NULL;
    }
    
    return NULL;
}

function regions_dropdown($name = '', $selected = array(), $attributes = '')
{
    $regions = get_instance()->common->getCountryRegions();
    
    $options = array();
        
    foreach($regions as $region)
    {
        $options[$region->region_id] = $region->name;
    }
                
    return form_dropdown($name, $options, $selected, $attributes);
}

function remove_double_zero($amount = 0)
{
    $formatted_amount = (string) number_format($amount, 2);
    
    if(substr($formatted_amount, -3) === '.00')
    {
        $formatted_amount = substr($formatted_amount, 0, -3);
    }
    
    return $formatted_amount;
}

function decode_post_data($post)
{
    array_walk_recursive($post, '_decode_data');
}

function _decode_data(&$str)
{
    if(is_string($str) && strlen($str) && trim($str) !== '')
    {
        $str = htmlspecialchars_decode($str, ENT_QUOTES);
    }

return $str;
}

function scrambled_hash($password = '')
{
    $first_half = md5($password);
    $second_half = md5(sha1(strrev($password), true));

$hash = '';

for($i = 0; $i < 2; $i++)
 {
 $scope = '';

for($j = 0; $j < 16; $j++)
 {
 $scope .= $first_half[$j];
 }

for($j = 0; $j < 16; $j++)
 {
 $scope .= $second_half[$j];
 }

$hash .= $scope;
    }

$new_password = '';
 $hash_length = strlen($hash);
 
 for($i = 0; $i < $hash_length; $i++)
 {
 $new_password .= md5($hash[0] . ':' . $hash[$i] . ':' . $hash[$hash_length - 1]);
 }
 
 return $new_password;
}

function hash_password($password = '')
{
    require_once(APPPATH . 'third_party/phppass/phppassword.php');
    return password_hash(scrambled_hash($password), PASSWORD_BCRYPT);
}

function verify_password($password = '', $hash = '')
{
    require_once(APPPATH . 'third_party/phppass/phppassword.php');
    return password_verify(scrambled_hash($password), $hash);
}

function preprint()
{
 array_map(function($arg_data)
 {
 echo '<pre>', print_r($arg_data, true), '</pre>';
 }, func_get_args());
}

function predump()
{
 echo '<pre>';
 call_user_func_array('var_dump', func_get_args());
 echo '</pre>';
}

// Converts empty strings to NULL
function nullify($str)
{
    if(is_array($str) || is_object($str))
    {
        return (count((array) $str) === 0) ? NULL : $str;
    }
    
    return (strlen(trim((string) $str)) === 0) ? NULL : $str;
}

function generate_unique_identifier($length = 8, $table = NULL, $column = NULL)
{
    $characters  = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
    $char_length = strlen($characters);

if(strlen($table) && strlen($column))
    {
        $CI =& get_instance();
        
        $looped_over = 0;
        $max_checks  = 10;

do {

if($looped_over >= $max_checks)
            {
                return false;
                break;
            }

$identifier  = '';

for($i = 0; $i < $char_length; $i++)
 {
 if(strlen($identifier) < $length)
 {
 $identifier .= $characters[rand(0, $char_length - 1)];
 }
 }

$looped_over++;
        }
        while($CI->db->query("SELECT 1 FROM `$table` WHERE `$column` = ? LIMIT 1", array($identifier))->num_rows() > 0);

return $identifier;
    }
    else
    {
        $identifier  = '';

for($i = 0; $i < $char_length; $i++)
 {
 if(strlen($identifier) < $length)
 {
 $identifier .= $characters[rand(0, $char_length - 1)];
 }
 }

return $identifier;
    }
}

function calendar_month_info($month = NULL, $year = NULL)
{
 $month = (($month = (int) $month) >= 1 && $month <= 12) ? $month : date('n');
 $year = (($year = (int) $year) > 0) ? $year : date('Y');
 
 $data = array_fill_keys(range(1, cal_days_in_month(CAL_GREGORIAN, $month, $year)), NULL);
 
 foreach($data as $day_of_month => $null_data)
 {
 $data[$day_of_month] = getdate(strtotime($day_of_month . '-' . $month . '-' . $year));
 }
 
 return $data;
}

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