[英]PHP: add variables into json_decode
I want to add variables into a string in php. I googled and found the method of: "{$a}".我想将变量添加到 php 中的字符串中。我用谷歌搜索并找到了方法:“{$a}”。 However this doesn't work for me.
但是,这对我不起作用。 I echoed it and it has literally echoed "{$a}" instead of the actual value of the variable.
我回应了它,它实际上回应了“{$a}”而不是变量的实际值。 Here is my code:
这是我的代码:
$body= json_decode(
'{
"sender_batch_header":
{
"email_subject": "SDK payouts test txn"
},
"items": [
{
"recipient_type": "EMAIL",
"receiver": "{$email}",
"note": "Your 1$ payout",
"sender_item_id": "Test_txn_12",
"amount":
{
"currency": "CHF",
"value": "{$actualAmount}"
}
}]
}',
true);
And here is the echo of $body:这是 $body 的回声:
{ "sender_batch_header": { "email_subject": "SDK payouts test txn" }, "items": [ { "recipient_type": "EMAIL", "receiver": "{$email}", "note": "Your 1$ payout", "sender_item_id": "Test_txn_12", "amount": { "currency": "CHF", "value": "{$actualAmount}" } }] }
{ "sender_batch_header": { "email_subject": "SDK payouts test txn" }, "items": [ { "recipient_type": "EMAIL", "receiver": "{$email}", "note": "Your 1 $ payout", "sender_item_id": "Test_txn_12", "amount": { "currency": "CHF", "value": "{$actualAmount}" } }] }
The variables I am talking about are $email and $actualAmount.我所说的变量是 $email 和 $actualAmount。 I debugged it and they both have a value it just does not get added to the string.
我调试了它,它们都有一个值,只是没有添加到字符串中。 Can anyone help?
谁能帮忙?
A string literal can be different ways:字符串文字可以有不同的方式:
You can use braces in double-quoted strings like: "Hello {$foo}"
unfortunately your string variable is single-quoted.您可以在双引号字符串中使用大括号,例如:
"Hello {$foo}"
不幸的是,您的字符串变量是单引号。 So we can use the concatenation operator ('.'), which returns the concatenation of its right and left arguments.所以我们可以使用连接运算符('.'),它返回其左右连接的 arguments。
So let's try with concatenation operator;因此,让我们尝试使用连接运算符;
$body= json_decode(
'{
"sender_batch_header":
{
"email_subject": "SDK payouts test txn"
},
"items": [
{
"recipient_type": "EMAIL",
"receiver": "'.$email.'",
"note": "Your 1$ payout",
"sender_item_id": "Test_txn_12",
"amount":
{
"currency": "CHF",
"value": "'.$actualAmount.'"
}
}]
}',
true);
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