我應(yīng)該為庫存管理應(yīng)用程序制作一個 php 程序。我有主程序，還有一個測試程序，以確保一切正常我確實有大部分工作的代碼庫存.phpclass Product{// ----------------------------------------- Properties -----------------------------------------private $product_name = "no name";private $product_code = 0;private $product_price = 0;private $product_quantity = 0;private $product_needs = "no needs";private $error_message = "??";// ---------------------------------- Set Methods ----------------------------------------------function set_product_name($value){$error_message = TRUE;(ctype_alpha($value) && strlen($value) <= 20) ? $this->product_name = $value : $this->error_message = FALSE;return $this->error_message;}function set_product_code($value){$error_message = TRUE;(ctype_digit($value) && ($value > 0 && $value <= 6)) ? $this->product_code = $value : $this->error_message = FALSE;return $this->error_message;}function set_product_price($value){$error_message = TRUE;(ctype_digit($value) && ($value > 0 && $value <= 6)) ? $this->product_price = $value : $this->error_message = FALSE;return $this->error_message;}function set_product_quantity($value){$error_message = TRUE;(ctype_digit($value) && ($value > 0 && $value <= 6)) ? $this->product_quantity = $value : $this->error_message = FALSE;return $this->error_message;}function set_product_needs($value){$error_message = TRUE;(ctype_alpha($value) && strlen($value) <= 40) ? $this->product_needs = $value : $this->error_message = FALSE;return $this->error_message;}// ----------------------------------------- Get Methods ------------------------------------------------------------function get_product_name(){return $this->product_name;}function get_product_code(){return $this->product_code;}function get_product_price(){return $this->product_price;}function get_product_quantity(){return $this->product_quantity;}function get_product_needs(){return $this->product_needs;}
2 回答
繁星淼淼
TA貢獻1775條經(jīng)驗 獲得超11個贊
您的 Product 類 Product 應(yīng)如下所示
class Product {
private $product_name = "no name";
private $product_code = 0;
private $product_price = 0;
private $product_quantity = 0;
private $product_needs = "no needs";
function get_product_name() {
return $this->product_name;
}
function set_product_name($value) {
$this->product_name = $value;
}
function get_product_code() {
return $this->product_code;
}
function set_product_code($value) {
$this->product_code = $value;
}
function get_product_price() {
return $this->product_price;
}
function set_product_price($value) {
$this->product_price = $value;
}
function get_product_quantity() {
return $this->product_quantity;
}
function set_product_quantity($value) {
$this->product_quantity = $value;
}
function get_product_needs() {
return $this->product_needs;
}
function set_product_needs($value) {
$this->product_needs = $value;
}
function get_properties() {
return $this->product_name . ' ' . $this->product_code . ' ' . $this->product_price . ' ' . $this->product_quantity . ' ' . $this->product_needs;
}
}
所以你可以創(chuàng)建一個實例并獲得正確的值
//lab.php
$product = new Product();
$product->set_product_code(1234);
print $product->get_product_code(); // print 1234
所有驗證都應(yīng)在產(chǎn)品模型之外進行
$product_quantity = '7.5';
if(is_numeric($product_quantity)) { // check if is numeric
$product->set_product_quantity($product_quantity); // set the product quantity
print "Quantity update successful<br />"; // show successful messages
} else {
print "Quantity update is not successful<br />";
}
縹緲止盈
TA貢獻2041條經(jīng)驗 獲得超4個贊
這應(yīng)該使它工作。主要問題是如何處理字符串和數(shù)值。有足夠的空間進行其他結(jié)構(gòu)改進:)。
庫存.php
<?php
class Product
{
// ----------------------------------------- Properties -----------------------------------------
private $product_name = "no name";
private $product_code = 0;
private $product_price = 0;
private $product_quantity = 90;
private $product_needs = "no needs";
private $error_message = "??";
// ---------------------------------- Set Methods ----------------------------------------------
function set_product_name($value)
{
$error_message = TRUE;
(ctype_alpha($value) && strlen($value) <= 20) ? $this->product_name = $value : $this->error_message = FALSE;
return $this->error_message;
}
function set_product_code($value)
{
$error_message = TRUE;
(is_numeric($value) && ($value > 0 && $value <= 999999)) ? $this->product_code = $value : $this->error_message = FALSE;
return $this->error_message;
}
function set_product_price($value)
{
$error_message = TRUE;
(is_numeric($value) && ($value > 0 && $value <= 999999)) ? $this->product_price = $value : $this->error_message = FALSE;
return $this->error_message;
}
function set_product_quantity($value)
{
$error_message = TRUE;
(is_numeric($value) && ($value > 0 && $value <= 999999)) ? $this->product_quantity = $value : $this->error_message = FALSE;
return $this->error_message;
}
function set_product_needs($value)
{
$error_message = TRUE;
(preg_match('/[^a-z_\-0-9]/i', $value) && strlen($value) <= 40) ? $this->product_needs = $value : $this->error_message = FALSE;
return $this->error_message;
}
// ----------------------------------------- Get Methods ------------------------------------------------------------
function get_product_name()
{
return $this->product_name;
}
function get_product_code()
{
return $this->product_code;
}
function get_product_price()
{
return $this->product_price;
}
function get_product_quantity()
{
return $this->product_quantity;
}
function get_product_needs()
{
return $this->product_needs;
}
function get_properties()
{
return "$this->product_name,$this->product_code,$this->product_price,$this->product_quantity,$this->product_needs.";
}
}
實驗室.php
$lab = new Product;
// ------------------------------Set Properties--------------------------
$product_error_message = $lab->set_product_name('Hinge');
print $product_error_message == TRUE ? 'Name update successful<br/>' : 'Name update not successful<br/>';
$product_error_message = $lab->set_product_code(45435);
print $product_error_message == TRUE ? 'Code update successful<br />' : 'Code update not successful<br />';
$product_error_message = $lab->set_product_price(7.50);
print $product_error_message == TRUE ? 'Price update successful<br />' : 'Product update not successful<br />';
$product_error_message = $lab->set_product_quantity(75);
print $product_error_message == TRUE ? 'Quantity update successful<br />' : 'Quantity update not successful<br />';
$product_error_message = $lab->set_product_needs('Wrap in plastic');
print $product_error_message == TRUE ? 'Needs update successful<br/>' : 'Needs update not successful<br/>';
// ------------------------------Get Properties--------------------------
print $lab->get_product_name() . "<br/>";
print $lab->get_product_code() . "<br />";
print $lab->get_product_price() . "<br />";
print $lab->get_product_quantity() . "<br />";
print $lab->get_product_needs() . "<br />";
$product_properties = $lab->get_properties();
list($product_name, $product_code, $product_price, $product_quantity, $product_needs) = explode(',', $product_properties);
print "Name: $product_name. Code: $product_code. Price: $product_price. Quantity: $product_quantity. Needs: $product_needs";
?>
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