What are the common errors that can occur when sending a POST request in PHP and how can they be resolved?

One common error when sending a POST request in PHP is not setting the proper headers. To resolve this, make sure to set the "Content-Type" header to "application/x-www-form-urlencoded" when sending form data. Additionally, ensure that the data being sent is properly encoded using the http_build_query() function. 

// Set the proper headers for a POST request
$options = array(
    'http' => array(
        'header'  => "Content-type: application/x-www-form-urlencoded\r\n",
        'method'  => 'POST',
        'content' => http_build_query($_POST),
    )
);
$context  = stream_context_create($options);
$result = file_get_contents($url, false, $context);

Keywords

POST request PHP errors resolution troubleshooting

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