Avertir lorsque je vérifie si le numéro de carte de crédit est valide ou non

Question

Vous recevez cet avertissement lorsque je vérifie si le numéro de carte de crédit est valide ou non. Appel creditcard_helper.php en utilisant l'instruction if(card_number_valid($this->input->post('card_number'))!=1)

A PHP Error was encountered 

Severity: 8192 

Message: Function ereg_replace() is deprecated 

Filename: helpers/creditcard_helper.php 

Line Number: 51 

creditcard_helper.php

<?php if (!defined('BASEPATH')) exit('No direct script access allowed'); 

/** 
* Credit Card Functions 
* 
* This helper module contains functions which can be used to manipulate credit 
* card numbers and related information. 
* 
* @package CodeIgniter 
* @subpackage Helpers 
* @category Helpers 
* @author Jim O'Halloran 
*/ 


/** 
* Truncates a card number retaining only the first 4 and the last 4 digits. It then returns the truncated form. 
* 
* @param string The card number to truncate. 
* @return string The truncated card number. 
*/ 
function truncate_card($card_num) { 
    $padsize = (strlen($card_num) < 7 ? 0 : strlen($card_num) - 7); 
    return substr($card_num, 0, 4) . str_repeat('X', $padsize). substr($card_num, -3); 
} 


/** 
* Validates a card expiry date. Finds the midnight on first day of the following 
* month and ensures that is greater than the current time (cards expire at the 
* end of the printed month). Assumes basic sanity checks have already been performed 
* on month/year (i.e. length, numeric, etc). 
* 
* @param integer The expiry month shown on the card. 
* @param integer The expiry year printed on the card. 
* @return boolean Returns true if the card is still valid, false if it has expired. 
*/ 
function card_expiry_valid($month, $year) { 
    $expiry_date = mktime(0, 0, 0, ($month + 1), 1, $year); 
    return ($expiry_date > time()); 
} 


/** 
* Strips all non-numerics from the card number. 
* 
* @param string The card number to clean up. 
* @return string The stripped down card number. 
*/ 
function card_number_clean($number) { 
    return ereg_replace("[^0-9]", "", $number); 
} 


/** 
* Uses the Luhn algorithm (aka Mod10) <http://en.wikipedia.org/wiki/Luhn_algorithm> 
* to perform basic validation of a credit card number. 
* 
* @param string The card number to validate. 
* @return boolean True if valid according to the Luhn algorith, false otherwise. 
*/ 
function card_number_valid ($card_number) { 
    $card_number = strrev(card_number_clean($card_number)); 
    $sum = 0; 

    for ($i = 0; $i < strlen($card_number); $i++) { 
     $digit = substr($card_number, $i, 1); 

     // Double every second digit 
     if ($i % 2 == 1) { 
      $digit *= 2; 
     } 

     // Add digits of 2-digit numbers together 
     if ($digit > 9) { 
      $digit = ($digit % 10) + floor($digit/10); 
     } 

     $sum += $digit; 
    } 

    // If the total has no remainder it's OK 
    return ($sum % 10 == 0); 
} 
?> 

Answer 1

S'il vous plaît utiliser

preg_replace() 

au lieu de

ereg_replace() 

Cette fonction est OBSOLETE depuis PHP 5.3.0.

Answer 2

D'après ce que vous avez publié, il n'a pas une erreur réelle qui a eu lieu, mais un message d'avertissement, à moins que votre configuration est la configuration pour erreur sur les avertissements.

See the ereg_replace documentation.