how to post data using curl in php code example

Example 1: http post request php curl

$post = [
   'teste' => $_POST['teste']
];
httpPost('url.com', $post);
// function
function httpPost($url, $data)
{
   	$curl = curl_init($url);
    curl_setopt($curl, CURLOPT_POST, true);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($curl);
    curl_close($curl);
    return $response;
}

Example 2: CURL PHP POST

<?php

$post = [
    'username' => 'user1',
    'password' => 'passuser1',
    'gender'   => 1,
];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.domain.com');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post));
$response = curl_exec($ch);
var_export($response);

Example 3: how to read data from curl php

$data = json_decode(file_get_contents('php://input'), true);

Example 4: CURL POST - PHP

$post_data_arr = [
      'f_name' => 'First',
      'l_name' => 'Last',
    ]; 
    
    $url = 'http://example.com';
    $curl = curl_init($url);
    curl_setopt($curl, CURLOPT_POST, true);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $post_data_arr);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($curl);
    curl_close($curl);
    print_r($response);