Simple PHP script to invite slack users

Join on Slack!

		<?php
			$showform = false;
			$error = false;
			if (isset($_POST['first'])){
				if (strlen($_POST['first']) > 1 && strlen($_POST['last']) > 1 && strlen($_POST['mail']) > 5){
					sendForm();
				} else {
					$showform = true;
					$error = true;
				}
			} else {
				$showform = true;
			}
		
		if ($showform){
			if ($error){
		?>
		
		<p style="font-family: 'Roboto', sans-serif; color: #9d3d3d">
			Please fill in all fields
		</p>
		
		<?php
				}
				
			showForm();
			}
		?>
	</div>
</body>

urlencode($email), 'first_name' => urlencode($first), 'token' => TOKEN, 'set_active' => urlencode('true'), '_attempts' => '1' ); // url-ify the data for the POST $fields_string=''; foreach($fields as $key=>$value) { $fields_string .= $key.'='.$value.'&'; } rtrim($fields_string, '&'); // open connection $ch = curl_init(); // set the url, number of POST vars, POST data curl_setopt($ch,CURLOPT_URL, $slackInviteUrl); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch,CURLOPT_POST, count($fields)); curl_setopt($ch,CURLOPT_POSTFIELDS, $fields_string); // exec $replyRaw = curl_exec($ch); $reply=json_decode($replyRaw,true); if($reply['ok']==false) { echo '

'; echo 'Something went wrong, try again!'; echo '

'; showForm(); } else { echo '

'; echo 'Invited successfully. Check your email. It should arrive within a couple minutes'; echo '

'; } // close connection curl_close($ch); } function showForm(){ ?>

		<form method="post">
			<p style="font-family: 'Roboto', sans-serif; color: #ffffff">
				First Name
			</p>
			
			<input type="text" name="first" style="width: 250px; " <?php echo strlen($_POST['first']) > 0 ? 'value="'.$_POST['first'].'"' : ''; ?> />
			
			<p style="font-family: 'Roboto', sans-serif; color: #ffffff">
				Last Name
			</p>
			<input type="text" name="last" style="width: 250px; " <?php echo strlen($_POST['last']) > 0 ? 'value="'.$_POST['last'].'"' : ''; ?> />
			<p style="font-family: 'Roboto', sans-serif; color: #ffffff">
				Email address
			</p>
			<input type="text" name="mail" style="width: 250px; " <?php echo strlen($_POST['mail']) > 0 ? 'value="'.$_POST['mail'].'"' : ''; ?> />
			<p>
				<input type="submit" value="Sign me up!" />
			</p>
		</form>
		
	<?php		
	
}