What potential issues could arise when sending a HTTPS POST query in PHP?

One potential issue that could arise when sending a HTTPS POST query in PHP is not properly handling SSL certificate verification, which can lead to security vulnerabilities. To solve this issue, you can set the 'verify_peer' and 'verify_peer_name' options to true in the stream context used for making the HTTPS request. 

$ch = curl_init();
$url = 'https://example.com/api';
$data = array('key1' => 'value1', 'key2' => 'value2');

$options = array(
    CURLOPT_URL => $url,
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => http_build_query($data),
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_SSL_VERIFYPEER => true,
    CURLOPT_SSL_VERIFYHOST => 2
);

curl_setopt_array($ch, $options);

$response = curl_exec($ch);

if($response === false){
    echo 'Curl error: ' . curl_error($ch);
}

curl_close($ch);

Keywords

SSL certificate cURL library TLS handshake HTTP status codes SSL verification.

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