10+ Useful PHP Code Snippets For Developers in 2015

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Php tips

Every PHP developer, programmer and web developer requires php snippets as these offer a variety of handy functions which can ultimately end up saving you time. The other way to explain code snippet is that these are a set of commands that can help you save time fulfilling laser-precision tasks in the quickest possible way.

The PHP code snippets have friendly structure which makes them easy to use. Every good developer need to be more productive and give quick results for which to have a set of resourceful snippets is necessary for specific task. At TGZ we are sharing some “Useful PHP Code Snippets for Developers” which contains innumerable useful php code snippets which every developer needs to have in their “toolbox”.

So have a look on “10+ Useful PHP Code Snippets for Developers”. 

Using PHPMailer To Send HTML Emails With Images

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<?php require("class.phpmailer.php"); $mail = new PHPMailer();$mail = new PHPMailer(); $mail->IsSMTP(); $mail->Host = "smtp1.example.com;smtp2.example.com"; $mail->SMTPAuth = true; $mail->Username = 'smtpusername'; $mail->Password = 'smtppassword'; $mail->From="mailer@example.com"; $mail->FromName="My site's mailer"; $mail->Sender="mailer@example.com"; $mail->AddReplyTo("replies@example.com", "Replies for my site"); $mail->AddAddress("email@example.com"); $mail->Subject = "Test 1"; $mail->IsHTML(true); $mail->AddEmbeddedImage('logo.jpg', 'logoimg', 'logo.jpg'); // attach file logo.jpg, and later link to it using identfier logoimg $mail->Body = "<h1>Test 1 of PHPMailer html</h1>     <p>This is a test picture: <img src=\"cid:logoimg\" /></p>"; $mail->AltBody="This is text only alternative body."; if(!$mail->Send()) {    echo "Error sending: " . $mail->ErrorInfo;; } else {    echo "Letter is sent"; } ?>

Get Country By IP Address in PHP

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<?php function getLocationInfoByIp(){ $client = @$_SERVER['HTTP_CLIENT_IP']; $forward = @$_SERVER['HTTP_X_FORWARDED_FOR']; $remote = @$_SERVER['REMOTE_ADDR']; $result = array('country'=>'', 'city'=>''); if(filter_var($client, FILTER_VALIDATE_IP)){ $ip = $client; }elseif(filter_var($forward, FILTER_VALIDATE_IP)){ $ip = $forward; }else{ $ip = $remote; } $ip_data = @json_decode (file_get_contents("http://www.geoplugin.net/json.gp?ip=".$ip)); if($ip_data && $ip_data->geoplugin_countryName != null){ $result['country'] = $ip_data->geoplugin_countryCode; $result['city'] = $ip_data->geoplugin_city; } return $result; } ?>

Get users’ IP Address with PHP

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function getRealIpAddr() { if (!empty($_SERVER['HTTP_CLIENT_IP'])) //check ip from share internet { $ip=$_SERVER['HTTP_CLIENT_IP']; } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) //to check ip is pass from proxy { $ip=$_SERVER['HTTP_X_FORWARDED_FOR']; } else { $ip=$_SERVER['REMOTE_ADDR']; } return $ip; }

Get short urls for Twitter with PHP

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<?php function getShortUrl($url){ return file_get_contents('http://tinyurl.com/api-create.php?url='.$url); } ?>

Short URL Function with PHP

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<?php function shorturl($url){ $length = strlen($url); if($length > 45){ $length = $length - 30; $first = substr($url, 0, -$length); $last = substr($url, -15); $new = $first."[ ... ]".$last; return $new; }else{ return $url; } } ?> // USAGE <?php $longurl= "http://www.google.com/search?q=symfony+project&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:tr:official&client=firefox-a"; $shorturl = shorturl($longurl); echo "<a href=\"$longurl\">$shorturl</a>"; ?>

  

url, email and ip validation with php

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<?php function is_valid_url($url){ $p1 ='/(http|https|ftp):\/\/[a-z0-9-]+(.[a-z0-9-]+)*(:[0-9]+)?(\/.*)?$/i'; return preg_match($p1, $url); } function is_valid_email($email){ if (filter_var($email, FILTER_VALIDATE_EMAIL)) return true; else return false; } function is_valid_ip($ip){ if (filter_var($ip, FILTER_VALIDATE_IP)) return true; else return false; } ?>

username, password and date validation with php

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<?php function is_valid_username($username){ // accepted username length between 5 and 20 if (preg_match('/^\w{5,20}$/', $username)) return true; else return false; } function is_valid_password($pwd){ // accepted password length between 5 and 20, start with character. if (preg_match("/^[a-zA-Z][0-9a-zA-Z_!$@#^&]{5,20}$/", $pwd)) return true; else return false; } function is_valid_date($date){ //============ date format dd-mm-yyyy if(preg_match("/^(\d{2})-(\d{2})-(\d{4})$/", $date, $sdate)) if(checkdate($sdate[2], $sdate[1], $sdate[3])) return true; } ?>

Unzip a Zip File

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<?php function unzip($location,$newLocation){ if(exec("unzip $location",$arr)){ mkdir($newLocation); for($i = 1;$i< count($arr);$i++){ $file = trim(preg_replace("~inflating: ~","",$arr[$i])); copy($location.'/'.$file,$newLocation.'/'.$file); unlink($location.'/'.$file); } return TRUE; }else{ return FALSE; } } ?> //Use the code as following: <?php include 'functions.php'; if(unzip('zipedfiles/test.zip','unziped/myNewZip')) echo 'Success!'; else echo 'Error'; ?>

Generate An Authentication Code in PHP

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<?php # This particular code will generate a random string # that is 25 charicters long 25 comes from the number # that is in the for loop $string = "abcdefghijklmnopqrstuvwxyz0123456789"; for($i=0;$i<25;$i++){ $pos = rand(0,36); $str .= $string{$pos}; } echo $str; # If you have a database you can save the string in # there, and send the user an email with the code in # it they then can click a link or copy the code # and you can then verify that that is the correct email # or verify what ever you want to verify ?>

Validate email Address

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function is_valid_email($email, $test_mx = false) { if(eregi("^([_a-z0-9-]+)(\.[_a-z0-9-]+)*@([a-z0-9-]+)(\.[a-z0-9-]+)*(\.[a-z]{2,4})$", $email)) if($test_mx) { list($username, $domain) = split("@", $email); return getmxrr($domain, $mxrecords); } else return true; else return false; }

WordPress – Scheduling Posts for RSS

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function publish_later_on_feed($where) { global $wpdb; if(is_feed()) { // timestamp in WP-format $now = gmdate('Y-m-d H:i:s'); // value for wait; + device $wait = '5'; // integer // http://dev.mysql.com/doc/refman/5.0/en/date-and-time-functions.html#function_timestampdiff $device = 'MINUTE'; //MINUTE, HOUR, DAY, WEEK, MONTH, YEAR // add SQL-sytax to default $where $where .= " AND TIMESTAMPDIFF($device, $wpdb->posts.post_date_gmt, '$now') > $wait "; } return $where; } add_filter('posts_where', 'publish_later_on_feed');

Facebook Comments for WordPress

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<div id="fb-root"></div> <script>(function(d, s, id) { var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_US/all.js#xfbml=1&appId=Your App ID Here"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk'));</script> <meta property="fb:app_id" content="Your App ID Here"/> <div data-href="<?php the_permalink() ?>" data-num-posts="2" data-width="470" data-colorscheme="light" data-mobile="false"></div> // Get combined FB and WordPress comment count function get_full_comment_count() { global $post; $url = get_permalink($post->ID); $filecontent = file_get_contents('https://graph.facebook.com/?ids=' . $url); $json = json_decode($filecontent); $count = $json->$url->comments; $wpCount = get_comments_number(); $realCount = $count + $wpCount; if ($realCount == 0 || !isset($realCount)) { $realCount = 0; } return $realCount; } function the_full_comment_count() { $realCount = get_full_comment_count(); echo $realCount; }

The Real Way To Check Uploaded File Type

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<?php // Here we specify all the type of files we want to accept $extension = array("application/pdf", "image/jpeg", "image/png", "image/gif"); if(isset($_POST['submit'])){     exec("file -i ".$_FILES['inputName']['tmp_name'], $output);     $type = explode(':', (string)$output[0]); } // Here we check our file with our needs if (isset($_FILES['inputName']) &&         $_FILES['inputName']['error'] == UPLOAD_ERR_OK  &&         $_FILES['inputName']['size'] <= 10000000 &&         in_array(trim($type[1]), $extension)){         var_dump($_FILES['inputName']['tmp_name']); }else{     die("File Error"); }