How put php variable

Question

I have this function:

function api()
{
    $date = time()- 86400;
    
    $method = "getOrders";
    
            $methodParams = '{
                "date_confirmed_from": $date,
                "get_unconfirmed_orders": false
            }';
            $apiParams = [
                "method" => $method,
                "parameters" => $methodParams
            ];
            
            $curl = curl_init("https://api.domain.com");
            curl_setopt($curl, CURLOPT_POST, 1);
            curl_setopt($curl, CURLOPT_HTTPHEADER, ["X-BLToken:xxx"]);
            curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($apiParams));
            $response = curl_exec($curl);
        
            return $response;
}

I want to put on line 8 variable date and I have tried {$date} $date '.$date.' ".$date." every time I get error from api

If I put value manually like 1589972726 it working, but I need to get value from $date variable!

Thank you!

Does this answer your question? What is the difference between single-quoted and double-quoted strings in PHP? — Ivar
– Ivar, Commented Jan 25, 2022 at 8:43
You have to use doublequotes " instead of single quotes ' if you want variables to be injected in the string. — Patrick Janser
– Patrick Janser, Commented Jan 25, 2022 at 8:43
$methodParams = '{ "date_confirmed_from": ' . $date. ', "get_unconfirmed_orders": false }'; — Rao DYC
– Rao DYC, Commented Jan 25, 2022 at 8:46
Don't manually create your json like that. Just create a PHP array with the correct structure and use json_encode() to turn it into json. — M. Eriksson
– M. Eriksson, Commented Jan 25, 2022 at 8:51

t.h3ads · Accepted Answer · 2022-01-25 08:46:44Z

2

Maybe it is less confusing, if you use an array and convert it to the needed format later:

$methodParams = [
   "date_confirmed_from" => $date,
   "get_unconfirmed_orders" => false
];
$apiParams = [
   "method" => $method,
   "parameters" => json_encode($methodParams)
];

Have a look at the documentation of json_encodefor details:

https://www.php.net/manual/function.json-encode.php

Anyways, using the same quotes that started the string to close it, should work too:

$methodParams = '{
    "date_confirmed_from": ' . $date . ',
    "get_unconfirmed_orders": false
}';

answered Jan 25, 2022 at 8:46

t.h3ads

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1 Comment

M. Eriksson Over a year ago

The json_encode()-path is the way to go.

BoBiTza · Accepted Answer · 2022-01-25 08:49:05Z

0

Because you have single quote on that string, you need to inject with single quote: '.$date.',

if you would have double quote you use {$date} or \"$date\"

$methodParams = '{
                "date_confirmed_from": '.$date.',
                "get_unconfirmed_orders": false
            }';

answered Jan 25, 2022 at 8:49

BoBiTza

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