php receive post request code example

Example 1: php post

<form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>">
  Name: <input type="text" name="fname">
  <input type="submit">
</form>
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
  // do logic
  $name = $_POST['fname'];
}
?>

Example 2: post request php

$response = httpPost("http://mywebsite.com/update.php",
	array("first_name"=>"Bob","last_name"=>"Dillon")
);

//using php curl (sudo apt-get install php-curl) 
function httpPost($url, $data){
    $curl = curl_init($url);
    curl_setopt($curl, CURLOPT_POST, true);
    curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($data));
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    $response = curl_exec($curl);
    curl_close($curl);
    return $response;
}

Example 3: php receive post

// Send data trough e.g. AJAX in JavaScript

$.ajax({
    type: "POST",
    url: 'example.php',
    data: { "num1": 1, "num2": 2},
    contentType: "application/json; charset=utf-8",
    dataType: "JSON",
    async: false
})

// You would receive it like this:
  
$num1 = $_POST["num1"];
$num2 = $_POST["num2"];

$sum = $num1 + $num2;
echo $sum;

// Would output: 3