8 useful PHP code snippets for developers

Today, i want to share you some useful PHP code snippets which may reduce your development time.

1.Send HTML Mail

<?php
$to = "[email protected]";
$subject = "This is my test html email send using php mail function";
$body    = "Body of your message here you can use HTML too. <br /> <h1> Header </h1> ;";
$headers = "From: User 
";
$headers.= "Reply-To: [email protected]
";
$headers.= "Return-Path: [email protected]
";
$headers.= <"X-Mailer: PHP5
";
$headers.= 'MIME-Version: 1.0'."
";
$headers.= 'Content-type: text/html; charset=iso-8859-1'."
";
mail($to,$subject,$body,$headers);
?>

2.Detect Browser using PHP function

<?php
echo $_SERVER['HTTP_USER_AGENT'] . "

";
$browser = get_browser(null, true);
print_r($browser);

// sample output

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040803 Firefox/0.9.3

Array
(
    [browser_name_regex] => ^mozilla/5\.0 (windows; .; windows nt 5\.1; .*rv:.*) gecko/.* firefox/0\.9.*$
    [browser_name_pattern] => Mozilla/5.0 (Windows; ?; Windows NT 5.1; *rv:*) Gecko/* Firefox/0.9*
    [parent] => Firefox 0.9
    [platform] => WinXP
    [browser] => Firefox
    [version] => 0.9
    [majorver] => 0
    [minorver] => 9
    [cssversion] => 2
    [frames] => 1
    [iframes] => 1
    [tables] => 1
    [cookies] => 1
    [backgroundsounds] =>
    [vbscript] =>
    [javascript] => 1
    [javaapplets] => 1
    [activexcontrols] =>
    [cdf] =>
    [aol] =>
    [beta] => 1
    [win16] =>
    [crawler] =>
    [stripper] =>
    [wap] =>
    [netclr] =>
)

?>

3. Get Remote IP address

echo $_SERVER['REMOTE_ADDR'];
//sample output 127.0.0.1

4. Read CSV file with PHP

<?php
function getCSVFile ( $CSVfile, $delimiter ) {

 if(isset($CSVfile) AND isset($delimiter) ){
 
	//Open csv file for reading.
	$handleCSV = fopen($CSVfile, "r");
	
	if($handleCSV) {
	
	//Read each line and print the line out.
	while (($line_array = fgetcsv($handleCSV, 4000, $delimiter)) !== false) {
 
		//Do something to each line.
		echo "<pre>";
		print_r($line_array);
		echo "</pre>";
		}
		fclose($handleCSV);
	}
 }

}

//url of the csv file

$CSVfile = 'test.csv'; 
 
//The delimiter that is used in csv file.
$delimiter = ',';

getCSVFile ($CSVfile, $delimiter );
?>

5. Check if server is HTTPS or not

if ($_SERVER['HTTPS'] != "on") { 
	echo "This is not HTTPS";
}else{
	echo "This is HTTPS";
}

6. Get short urls for Twitter

function getTinyUrl($url) {
    return file_get_contents("http://tinyurl.com/api-create.php?url=".$url);
}

7. Simple PHP Image Crop

$file = $_FILES['image']['name'];
$newwidth = 200; // SET YOUR DESIRED WIDTH

$small_image = str_replace(" ", "_", $file);
$small_image = "small_".$small_image;
$smallfile = $_FILES['image']['tmp_name'];
$src = imagecreatefromjpeg($smallfile);
list($width,$height)=getimagesize($smallfile);
$newheight=($height/$width)*$newwidth;
$tmp=imagecreatetruecolor($newwidth,$newheight);
imagecopyresampled($tmp,$src,0,0,0,0,$newwidth,$newheight,$width,$height);
$filename = $imagepath."small/".$small_image;
imagejpeg($tmp,$filename,100);
 
imagedestroy($src);
imagedestroy($tmp);

8. Simple PHP Redirect

    function redirect($url,$die=true,$permanent=false) {
    if(headers_sent()) {
    print("<script type=\"text/javascript\">window.location.href='{$url}';</script>");
    } else {
    if($permanent) {
    header("HTTP/1.1 301 Moved Permanently");
    }
    header("Location: {$url}");
    }
    if($die) { die(); }
    }

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Written by Dynamic Web Lab Editorial — UAE digital transformation experts since 2013.