Question

我一直在输出错误的输出，因为每个钱包都有最后的金额，任何人都可以提供帮助吗？非常感谢。

foreach ( $xml->NewDataSet->WalletData as $PGW) {
    printf("%s\t%s\n", $PGW->walletID, $PGW->Walletamount);
}

这个foreach输出是：

walletID    Walletamount
1           100
4           40

第二个foreach as blow：

foreach ( $xml2->NewDataSet->Provider as $provide) {
    if ($provide->WalletType == 'Black Wallet') {
        printf("%s\t%s\t%s\n", " ", $provide->WalletID, $provide->WalletName));
    }   
}

输出是：

amount   WalletID  WalletName  
         1         A
         2         B
         3         C
         4         D
         5         E
         6         F

我如何将这样的两个foreach和输出结合起来。

amount   walletname
100.0    A
  0.0    B
  0.0    C
 40.0    D
  0.0    E
  0.0    F

Answer 1

我会构建一个数组：

$wallets = array();

foreach ( $xml2->NewDataSet->Provider as $provide) {
    if ($provide->WalletType == 'Black Wallet') {
        $wallets[$provide->WalletID] = array('name' => $provide->WalletName, 'amount' => 0);
    }   
}

foreach ( $xml->NewDataSet->WalletData as $PGW) {
    $wallets[$PGW->walletID]['amount'] = $PGW->Walletamount;
}

for( $i=0;$i<count($wallets);$i++ ){
    printf("%s\t%s\n", $wallets[$i]['amount'], $wallets[$i]['name']);
}

Answer 2

快速回答是：

foreach ( $xml2->NewDataSet->Provider as $provide) {
    if ($provide->WalletType == 'Black Wallet') {
        if (isset($xml->NewDataSet->WalletData[$provide->WalletID])) {
            printf("%s\t%s\t%s\n", $xml->NewDataSet->WalletData[$provide->WalletID]->Walletamount, $provide->WalletID, $provide->WalletName));
        } else {
            printf("%s\t%s\t%s\n", 0, $provide->WalletID, $provide->WalletName));
        }
    }   
}

但我不知道您的变量$xml和$xml2是什么。

Answer 3

我还没有开始，因为你还没有提供正常形式的阵列但它必须工作

<?php
$array1=Array ();
foreach ( $xml->NewDataSet->WalletData as $PGW) {
    $array1[$PGW->walletID]=$PGW->Walletamount;
}
foreach ( $xml2->NewDataSet->Provider as $provide) {
    if ($provide->WalletType == 'Black Wallet') {
        if(isset($array1[$provide->WalletID]))
            $data=$array1[$provide->WalletID];
        else
            $data=0;
        echo sprintf("%s\t%.1F\n", " ", $data, $provide->WalletName);
    }   
}
?>

嵌套的foreach结合php

3 个答案: