PHP - Data Explorer API Example

I’d trim most of the comments to make it easier to read :slight_smile:
Some comments are unnecessary, like:

// Obtain result
//
$result = curl_exec( $ch );

or

// close curl session
curl_close( $ch );

Also, know you can set the syntax highlighting by appending the language name to the first line of backticks:

```php
$headers = array("Content-Type: multipart/form-data;","Api-Key: $api_key","Api-Username: system",);
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers );
curl_setopt($ch, CURLOPT_POSTFIELDS,$data);
```

Renders as

$headers = array("Content-Type: multipart/form-data;","Api-Key: $api_key","Api-Username: system",);
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers );
curl_setopt($ch, CURLOPT_POSTFIELDS,$data);