无法使用php解码json_Php_Json - Fatal编程技术网

无法使用php解码json

php json

无法使用php解码json,php,json,Php,Json,我试图在php中解析一个json变量并提取一个特定的值我的json是 { "currencyCode": "USD", "id": "278QQZYEIEJDSMA1L2", "link": [ { "rel": "hosted_payment", "uri": "https://pay.test.netbanx.com/hosted/v1/payment/53616c7465645f5fac1b7ed6a320e392498376e38afc42a

我试图在php中解析一个json变量并提取一个特定的值

我的json是

{
  "currencyCode": "USD",
  "id": "278QQZYEIEJDSMA1L2",
  "link": [
    {
      "rel": "hosted_payment",
      "uri": "https://pay.test.netbanx.com/hosted/v1/payment/53616c7465645f5fac1b7ed6a320e392498376e38afc42ada7b2c646af7de3e4bc58c77905e8032d"
    },
    {
      "rel": "self",
      "uri": "https://devcentre4619:B-qa2-0-548a0405-302c02140e37a359f831dab53896f0cd7ba5d312787b7070021416ab2196d33848a5e936f65ff50f780d8a08aeb6@api.test.netbanx.com/hosted/v1/orders/278QQZYEIEJDSMA1L2"
    },
    {
      "rel": "resend_callback",
      "uri": "https://devcentre4619:B-qa2-0-548a0405-302c02140e37a359f831dab53896f0cd7ba5d312787b7070021416ab2196d33848a5e936f65ff50f780d8a08aeb6@api.test.netbanx.com/hosted/v1/orders/278QQZYEIEJDSMA1L2/resend_callback"
    }
  ],
  "merchantRefNum": "89983481",
  "mode": "live",
  "totalAmount": "1234",
  "type": "order"
}

我需要能够在

rel=hosted\u付款时提取uri

我已经编写了以下php代码
<?php

$jsonData = '{
  "currencyCode": "USD",
  "id": "278QQZYEIEJDSMA1L2",
  "link": [
    {
      "rel": "hosted_payment",
      "uri": "https://pay.test.netbanx.com/hosted/v1/payment/53616c7465645f5fac1b7ed6a320e392498376e38afc42ada7b2c646af7de3e4bc58c77905e8032d"
    },
    {
      "rel": "self",
      "uri": "https://devcentre4619:B-qa2-0-548a0405-302c02140e37a359f831dab53896f0cd7ba5d312787b7070021416ab2196d33848a5e936f65ff50f780d8a08aeb6@api.test.netbanx.com/hosted/v1/orders/278QQZYEIEJDSMA1L2"
    },
    {
      "rel": "resend_callback",
      "uri": "https://devcentre4619:B-qa2-0-548a0405-302c02140e37a359f831dab53896f0cd7ba5d312787b7070021416ab2196d33848a5e936f65ff50f780d8a08aeb6@api.test.netbanx.com/hosted/v1/orders/278QQZYEIEJDSMA1L2/resend_callback"
    }
  ],
  "merchantRefNum": "89983481",
  "mode": "live",
  "totalAmount": "1234",
  "type": "order"
}';
// convert the string to a json object
$jfo = json_decode($jsonData);

// copy the link array to a php var
$posts = $jfo->link;
// listing links
foreach ($link as $link) {
    if (strcmp("hosted_payment", $link->rel) == 0) {
        echo $link->uri;
    }
}

我无法理解为什么会发生这种情况，请指出我犯错误的地方。
您没有使用$link
变量
<?php

// setting json data
$jsonData = '{
  "currencyCode": "USD",
  "id": "278QQZYEIEJDSMA1L2",
  "link": [
    {
      "rel": "hosted_payment",
      "uri": "https://pay.test.netbanx.com/hosted/v1/payment/53616c7465645f5fac1b7ed6a320e392498376e38afc42ada7b2c646af7de3e4bc58c77905e8032d"
    },
    {
      "rel": "self",
      "uri": "https://devcentre4619:B-qa2-0-548a0405-302c02140e37a359f831dab53896f0cd7ba5d312787b7070021416ab2196d33848a5e936f65ff50f780d8a08aeb6@api.test.netbanx.com/hosted/v1/orders/278QQZYEIEJDSMA1L2"
    },
    {
      "rel": "resend_callback",
      "uri": "https://devcentre4619:B-qa2-0-548a0405-302c02140e37a359f831dab53896f0cd7ba5d312787b7070021416ab2196d33848a5e936f65ff50f780d8a08aeb6@api.test.netbanx.com/hosted/v1/orders/278QQZYEIEJDSMA1L2/resend_callback"
    }
  ],
  "merchantRefNum": "89983481",
  "mode": "live",
  "totalAmount": "1234",
  "type": "order"
}';

// convert the string to a json object
$jfo = json_decode($jsonData);

// copy the link array to a php var
$links = $jfo->link;

// listing links
foreach ($links as $link) {
          if (strcmp("hosted_payment", $link->rel) == 0) {
                    echo $link->uri;
          }
}

您没有使用$link
变量
<?php

// setting json data
$jsonData = '{
  "currencyCode": "USD",
  "id": "278QQZYEIEJDSMA1L2",
  "link": [
    {
      "rel": "hosted_payment",
      "uri": "https://pay.test.netbanx.com/hosted/v1/payment/53616c7465645f5fac1b7ed6a320e392498376e38afc42ada7b2c646af7de3e4bc58c77905e8032d"
    },
    {
      "rel": "self",
      "uri": "https://devcentre4619:B-qa2-0-548a0405-302c02140e37a359f831dab53896f0cd7ba5d312787b7070021416ab2196d33848a5e936f65ff50f780d8a08aeb6@api.test.netbanx.com/hosted/v1/orders/278QQZYEIEJDSMA1L2"
    },
    {
      "rel": "resend_callback",
      "uri": "https://devcentre4619:B-qa2-0-548a0405-302c02140e37a359f831dab53896f0cd7ba5d312787b7070021416ab2196d33848a5e936f65ff50f780d8a08aeb6@api.test.netbanx.com/hosted/v1/orders/278QQZYEIEJDSMA1L2/resend_callback"
    }
  ],
  "merchantRefNum": "89983481",
  "mode": "live",
  "totalAmount": "1234",
  "type": "order"
}';

// convert the string to a json object
$jfo = json_decode($jsonData);

// copy the link array to a php var
$links = $jfo->link;

// listing links
foreach ($links as $link) {
          if (strcmp("hosted_payment", $link->rel) == 0) {
                    echo $link->uri;
          }
}

您没有使用$link
变量
<?php

// setting json data
$jsonData = '{
  "currencyCode": "USD",
  "id": "278QQZYEIEJDSMA1L2",
  "link": [
    {
      "rel": "hosted_payment",
      "uri": "https://pay.test.netbanx.com/hosted/v1/payment/53616c7465645f5fac1b7ed6a320e392498376e38afc42ada7b2c646af7de3e4bc58c77905e8032d"
    },
    {
      "rel": "self",
      "uri": "https://devcentre4619:B-qa2-0-548a0405-302c02140e37a359f831dab53896f0cd7ba5d312787b7070021416ab2196d33848a5e936f65ff50f780d8a08aeb6@api.test.netbanx.com/hosted/v1/orders/278QQZYEIEJDSMA1L2"
    },
    {
      "rel": "resend_callback",
      "uri": "https://devcentre4619:B-qa2-0-548a0405-302c02140e37a359f831dab53896f0cd7ba5d312787b7070021416ab2196d33848a5e936f65ff50f780d8a08aeb6@api.test.netbanx.com/hosted/v1/orders/278QQZYEIEJDSMA1L2/resend_callback"
    }
  ],
  "merchantRefNum": "89983481",
  "mode": "live",
  "totalAmount": "1234",
  "type": "order"
}';

// convert the string to a json object
$jfo = json_decode($jsonData);

// copy the link array to a php var
$links = $jfo->link;

// listing links
foreach ($links as $link) {
          if (strcmp("hosted_payment", $link->rel) == 0) {
                    echo $link->uri;
          }
}

您没有使用$link
变量
<?php

// setting json data
$jsonData = '{
  "currencyCode": "USD",
  "id": "278QQZYEIEJDSMA1L2",
  "link": [
    {
      "rel": "hosted_payment",
      "uri": "https://pay.test.netbanx.com/hosted/v1/payment/53616c7465645f5fac1b7ed6a320e392498376e38afc42ada7b2c646af7de3e4bc58c77905e8032d"
    },
    {
      "rel": "self",
      "uri": "https://devcentre4619:B-qa2-0-548a0405-302c02140e37a359f831dab53896f0cd7ba5d312787b7070021416ab2196d33848a5e936f65ff50f780d8a08aeb6@api.test.netbanx.com/hosted/v1/orders/278QQZYEIEJDSMA1L2"
    },
    {
      "rel": "resend_callback",
      "uri": "https://devcentre4619:B-qa2-0-548a0405-302c02140e37a359f831dab53896f0cd7ba5d312787b7070021416ab2196d33848a5e936f65ff50f780d8a08aeb6@api.test.netbanx.com/hosted/v1/orders/278QQZYEIEJDSMA1L2/resend_callback"
    }
  ],
  "merchantRefNum": "89983481",
  "mode": "live",
  "totalAmount": "1234",
  "type": "order"
}';

// convert the string to a json object
$jfo = json_decode($jsonData);

// copy the link array to a php var
$links = $jfo->link;

// listing links
foreach ($links as $link) {
          if (strcmp("hosted_payment", $link->rel) == 0) {
                    echo $link->uri;
          }
}

您正在分配给$posts
，而不是$link
。跳过临时变量。变量$link在哪里？它没有用您正在分配给$posts
，而不是$link
。跳过临时变量。变量$link在哪里？它没有用您正在分配给$posts
，而不是$link
。跳过临时变量。变量$link在哪里？它没有用您正在分配给$posts
，而不是$link
。跳过临时变量。变量$link在哪里，它的值无效！！！我忽略了变量是$posts
谢谢，伙计：）是多么愚蠢啊！！！我忽略了变量是$posts
谢谢，伙计：）是多么愚蠢啊！！！我忽略了变量是$posts
谢谢，伙计：）是多么愚蠢啊！！！我忽略了变量是$posts
谢谢，伙计：）这是多么愚蠢啊