Shyam S Kumar shyamsalimkumar

shyamsalimkumar / gist:5752394

Last active December 18, 2015 08:09

PHP - Create data uri’s - Base64 encoding

	function data_uri($file, $mime) {
	$contents=file_get_contents($file);
	$base64=base64_encode($contents);
	return "data:$mime;base64,$base64";
	}

shyamsalimkumar / gist:5752362

Last active December 18, 2015 08:09

PHP - Download & save a remote image on your server

	function downloadFromRemote($imageUrl = '', $saveFilePath) {
	$image = file_get_contents($imageUrl);
	return file_put_contents($saveFilePath, $image); //save the image on local server
	}

shyamsalimkumar / gist:5752358

Last active December 18, 2015 08:09

PHP - Automatically creates variables with the same name as the key in the POST array

	$expected=array('username','age','city','street');
	foreach($expected as $key){
	if(!empty($_POST[$key])){
	${key}=$_POST[$key];
	}
	else{
	${key}=NULL;
	}
	}

shyamsalimkumar / gist:5752348

Last active December 18, 2015 08:09

PHP - Email error log

	// Our custom error handler
	function nettuts_error_handler($number, $message, $file, $line, $vars){
	$email = "
	<p>An error ($number) occurred on line
	<strong>$line</strong> and in the <strong>file: $file.</strong>
	<p> $message </p>";

	$email .= "<pre>" . print_r($vars, 1) . "</pre>";

	$headers = 'Content-type: text/html; charset=iso-8859-1' . "\r\n";

shyamsalimkumar / gist:5752327

Last active December 18, 2015 08:09

PHP - Get all tweets of a specific hashtag

	function getTweets($hash_tag) {

	$url = 'http://search.twitter.com/search.atom?q='.urlencode($hash_tag) ;
	echo "<p>Connecting to <strong>$url</strong> ...</p>";
	$ch = curl_init($url);
	curl_setopt ($ch, CURLOPT_RETURNTRANSFER, TRUE);
	$xml = curl_exec ($ch);
	curl_close ($ch);

	//If you want to see the response from Twitter, uncomment this next part out:

shyamsalimkumar / gist:5752309

Last active December 18, 2015 08:09

PHP - Get distance b/w coordinates

	function getDistanceBetweenPointsNew($latitude1, $longitude1, $latitude2, $longitude2) {
	$theta = $longitude1 - $longitude2;
	$miles = (sin(deg2rad($latitude1)) * sin(deg2rad($latitude2))) + (cos(deg2rad($latitude1)) * cos(deg2rad($latitude2)) * cos(deg2rad($theta)));
	$miles = acos($miles);
	$miles = rad2deg($miles);
	$miles = $miles * 60 * 1.1515;
	$feet = $miles * 5280;
	$yards = $feet / 3;
	$kilometers = $miles * 1.609344;
	$meters = $kilometers * 1000;

shyamsalimkumar / gist:5752278

Last active December 18, 2015 08:09

PHP - Sanitize inputs, Usage - $_POST = sanitize($_POST);

	function cleanInput($input) {
	$search = array(
	'@<script[^>]?>.?</script>@si', // Strip out javascript
	'@<[\/\!]?[^<>]?>@si', // Strip out HTML tags
	'@<style[^>]?>.?</style>@siU', // Strip style tags properly
	'@<![\s\S]?--[ \t\n\r]>@' // Strip multi-line comments
	);
	$output = preg_replace($search, '', $input);
	return $output;
	}