Php 将数组值与输入值进行比较
我有一个包含数组的PHP文件：Php 将数组值与输入值进行比较,php,forms,multidimensional-array,Php,Forms,Multidimensional Array,我有一个包含数组的PHP文件： $cards = array ( 1234=>array ( "type" => "Viza", "owner" => "Petar Petrovic", "balance" => 1000, ), 5678=>array
$cards = array
(
1234=>array
(
"type" => "Viza",
"owner" => "Petar Petrovic",
"balance" => 1000,
),
5678=>array
(
"type" => "Master Card",
"owner" => "Ivan Ivanovic",
"balance" => 20000,
),
91011=>array
(
"type" => "American Express",
"owner" => "Marko Markovic",
"balance" => 300000,
),
121314=>array
(
"type" => "Diners Club",
"owner" => "Veljko Veljkovic",
"balance" => 1000000,
)
<form action="cards.php" method="post">
<table align="center">
<tr>
<td>Enter your name</td>
<td><input type="text" name="name"></td>
</tr>
<tr>
<td>Enter your card number</td>
<td><input type="text" name="cardno"></td>
</tr>
<tr>
<td>Enter your sum</td>
<td><input type="text" name="sum"></td>
</tr>
<tr>
<td>Select card type</td>
<td><select name="select">
<option value="viza">Viza</option>
<option value="master">Master Card</option>
<option value="american">American Express</option>
<option value="diners">Diners Club</option>
</select></td>
</tr>
<tr>
<td></td>
<td><input type="submit" name="submit" value="SUBMIT"></td>
</tr>
</table>
</form>
输入您的姓名
输入您的卡号
输入你的总数
选择卡片类型
维萨
万事达卡
美国运通
大来卡
$card_number=$_POST['cardno'];
$name = $_POST['name'];
$sum = $_POST['sum'];
$type = $_POST['select'];
foreach($cards as $key=>$item){
if ($item['type']== $type){
if($item['owner']== $name){
if($item['balance'] > $sum){
$newbalance= $item['balance'] - $sum;
echo "Your new balance is:".$newbalance;
}
else if($item['balance'] < $sum){
echo "You dont have enough sources on your account";
}
else if ($item['owner']!== $name){
echo "Ivalid name!";
}
else if($item['type']!== $type){
echo "Invalid card type!";
}
else if($key !== $card_number){
echo "Invalid card number!";
}
}
}
}
$card\u number=$\u POST['cardno']；
$name=$_POST['name']；
$sum=$_POST['sum']；
$type=$_POST['select']；
foreach（$key=>$item的卡）{
如果（$item['type']=$type）{
如果（$item['owner']==$name）{
如果（$item['balance']>$sum）{
$newbalance=$item['balance']-$sum；
echo“您的新余额为：”.$newbalance；
}
如果有其他情况（$item['balance']<$sum）{
echo“你的账户上没有足够的信息来源”；
}
else if（$item['owner']！==$name）{
呼应“我的名字！”；
}
else if（$item['type']！=$type）{
回显“无效卡类型！”；
}
否则如果（$key！==$card\u编号）{
回显“无效卡号！”；
}
}
}
}
$cards// First check if the card number exists or not
if(array_key_exists($_POST['cardno'], $cards)){
// Check rest of the details
if($cards[$_POST['cardno']]['name'] == $_POST['name']){
if($cards[$_POST['cardno']]['type'] == $_POST['select']){
if($cards[$_POST['cardno']]['balance'] >= $_POST['sum']){
$newbalance= $cards[$_POST['cardno']]['balance'] - $_POST['sum'];
echo "Your new balance is:".$newbalance;
}else{
echo "You dont have enough sources on your account";
}
}else{
echo "Invalid card type";
}
}else{
echo "Invalid name";
}
}else{
echo "Invalid card number";
}
$cards// First check if the card number exists or not
if(array_key_exists($_POST['cardno'], $cards)){
// Check rest of the details
if($cards[$_POST['cardno']]['name'] == $_POST['name']){
if($cards[$_POST['cardno']]['type'] == $_POST['select']){
if($cards[$_POST['cardno']]['balance'] >= $_POST['sum']){
$newbalance= $cards[$_POST['cardno']]['balance'] - $_POST['sum'];
echo "Your new balance is:".$newbalance;
}else{
echo "You dont have enough sources on your account";
}
}else{
echo "Invalid card type";
}
}else{
echo "Invalid name";
}
}else{
echo "Invalid card number";
}
试试这个，正如@Rajdeep Paul告诉您的，您可以使用array_key_exists（），我已经创建了一个函数，并向余额中添加了新值
function checkCreditCard($cards, $cardno, $name, $sum, $type) {
$bResult = (array_key_exists($cardno, $cards)) ? true : false;
if ($bResult) {
if ($cards[$cardno]['owner'] == $name && $cards[$cardno]['type'] == $type) {
if ($cards[$cardno]['balance'] >= $sum) {
$newBalance = ($cards[$cardno]['balance'] - $sum);
$cards[$cardno]['balance'] = $newBalance;
return "Your new balance is:" . $newBalance;
} else {
"You dont have enough sources on your account";
}
} else {
return "Invalid name or card type";
}
}
return "Invalid card number!";
}
$cards = array
(
1234 => array
(
"type" => "Viza",
"owner" => "Petar Petrovic",
"balance" => 1000,
),
echo checkCreditCard($cards, 1234, 'Petar Petrovic', '100', 'Viza');
Your new balance is:900
echo checkCreditCard($cards, 000000, 'Petar Petrovic', '100', 'Viza');
Invalid card number!
试试这个，正如@Rajdeep Paul告诉您的，您可以使用array_key_exists（），我已经创建了一个函数，并向余额中添加了新值
function checkCreditCard($cards, $cardno, $name, $sum, $type) {
$bResult = (array_key_exists($cardno, $cards)) ? true : false;
if ($bResult) {
if ($cards[$cardno]['owner'] == $name && $cards[$cardno]['type'] == $type) {
if ($cards[$cardno]['balance'] >= $sum) {
$newBalance = ($cards[$cardno]['balance'] - $sum);
$cards[$cardno]['balance'] = $newBalance;
return "Your new balance is:" . $newBalance;
} else {
"You dont have enough sources on your account";
}
} else {
return "Invalid name or card type";
}
}
return "Invalid card number!";
}
$cards = array
(
1234 => array
(
"type" => "Viza",
"owner" => "Petar Petrovic",
"balance" => 1000,
),
echo checkCreditCard($cards, 1234, 'Petar Petrovic', '100', 'Viza');
Your new balance is:900
echo checkCreditCard($cards, 000000, 'Petar Petrovic', '100', 'Viza');
Invalid card number!
附带说明：在扣除并向用户显示余额金额后，您可能还需要更新
$cards$cards