PHP Extension Requires Chilkat v11.5.0+

curl with Variable Substitution in the Request Body

See more CURL Examples

This example demonstrates using variables located in the request body with the {{variable_name}} syntax. PHP Extension

<?php

include("chilkat.php");

$success = false;

//  Variables can also be used within the HTTP request body.
//  Variable names are enclosed between {{ and }}

//  Here is a curl command with two variables {{name}} and {{age}} located in the data.

//  curl -X POST https://api.example.com/data \
//    -H "Content-Type: application/json" \
//    -d '{"name":"{{name}}","age":{{age}}}'

$sbCurl = new CkStringBuilder();
$sbCurl->AppendLn('curl -X POST https://api.example.com/data \\');
$sbCurl->AppendLn('  -H \'Content-Type: application/json\' \\');
$sbCurl->AppendLn('  -d '{\'name\':\'{{name}}\',\'age\':{{age}}}'');

$curl = new CkHttpCurl();

//  Provide values for variables.
$curl->SetVar('name','Alice');
$curl->SetVar('age','30');

//  To demonstrate how the variables are replaced, this example does not execute the curl command. 
//  Instead, it generates the raw HTTP request that would be sent if the curl command were run.
$sbRawRequest = new CkStringBuilder();
$success = $curl->ToRawRequest($sbCurl->getAsString(),$sbRawRequest);
if ($success == false) {
    print $curl->lastErrorText() . "\n";
    exit;
}

print $sbRawRequest->getAsString() . "\n";

//  Output:

//  POST /data HTTP/1.1
//  Host: api.example.com
//  Content-Type: application/json
//  Content-Length: 25
//  
//  {"name":"Alice","age":30}

//  --------------------------------------------------------------------------------------------------
//  Note: Variable substitution in the request body can be turned off by 
//  setting the EnableBodyVars property equal to false

$curl->put_EnableBodyVars(false);

$success = $curl->ToRawRequest($sbCurl->getAsString(),$sbRawRequest);
if ($success == false) {
    print $curl->lastErrorText() . "\n";
    exit;
}

print $sbRawRequest->getAsString() . "\n";

//  The raw request with body variable substitution disable:

//  Host: api.example.com
//  Content-Type: application/json
//  Content-Length: 33
//  
//  {"name":"{{name}}","age":{{age}}}

?>