Showing posts with label php. Show all posts

Tutorial English Time to Seconds

Just type in the time you want converted to seconds in english (e.g. "1 hour and 30 minutes") and it will be converted to an integer of seconds (e.g. 5400). Thanks to Baylor Rae.

function time2seconds($time) {

 preg_match_all('/(\d+ [a-z]+)/', $time, $matches);
 
 $matches = $matches[0];

 $formats = array();

 foreach ($matches as $format) {
   preg_match('/(\d+)\s?([a-z]+)/', $format, $f);
   $time = $f[1];
   $type = $f[2];
   $formats[$type] = $time;
 }

 $output = array(
     'years' => 0,
     'months' => 0,
     'days' => 0,
     'hours' => 0,
     'minutes' => 0,
     'seconds' => 0
 );

 foreach ($formats as $format => $time) {
   if( $time == 0 )
     continue;

   switch ($format) {
     case 'year' :
     case 'years' :
       $output['years'] = $time * 12 * 30 * 24 * 60 * 60;
     break;

     case 'month' :
     case 'months' :
       $output['months'] = $time * 30 * 24 * 60 * 60;
     break;

     case 'day' :
     case 'days' :
       $output['days'] = $time * 24 * 60 * 60;
     break;

     case 'hour' :
     case 'hours' :
       $output['hours'] = $time * 60 * 60;
     break;

     case 'minute' :
     case 'minutes' :
       $output['minutes'] = $time * 60;
     break;

     case 'second' :
     case 'seconds' :
       $output['seconds'] = $time;
     break;
   }

 }

 return $output['years'] + $output['months'] + $output['days'] + $output['hours'] + $output['minutes'] + $output['seconds'];
}

Simple Usage

Form submits "time":

<form method="post">
	<label for="time">Time</label><br />
	<input type="text" name="time" id="time" size="50" value="<?php echo (isset($_POST['time'])) ? $_POST['time'] : '1 hour 30 minutes' ?>" />
	<button name="submit">Test!</button>
</form>

If "time" is set, use the function and echo what is returned:

if (isset($_POST)) {
  echo time2seconds($_POST['time']);
}

Reference URL

Tutorial Email Protector

by Unknown in php , Tutorial 0

<?php
	function php_split_js_make_email($phpemail)
	{
		$pieces = explode("@", $phpemail);
	
		echo '
			<script type="text/javascript">
				var a = "<a href=\'mailto:";
				var b = "' . $pieces[0] . '";
				var c = "' . $pieces[1] .'";
				var d = "\' class=\'email\'>";
				var e = "</a>";
				document.write(a+b+"@"+c+d+b+"@"+c+e);
			</script>
			<noscript>Please enable JavaScript to view emails</noscript>
		';
	}
?>

Usage

<?php php_split_js_make_email("youremail@here.com"); ?>

Reference URL

Tutorial Email Address Validation

by Unknown in php , Tutorial 0

Simple

$email = 'mail@example.com';
$validation = filter_var($email, FILTER_VALIDATE_EMAIL);

if ( $validation ) $output = 'proper email address';
else $output = 'wrong email address';

echo $output;

Advanced

This function doesn't only check if the format of the given email address is correct, it also performs a test if the host is existing.

<?php
$email="test@geemail.com";
if (isValidEmail($email))
{
       echo "Hooray! Adress is correct.";
}
else
{
       echo "Sorry! No way.";
}

//Check-Function
function isValidEmail($email)
{
       //Perform a basic syntax-Check
       //If this check fails, there's no need to continue
       if(!filter_var($email, FILTER_VALIDATE_EMAIL))
       {
               return false;
       }

       //extract host
       list($user, $host) = explode("@", $email);
       //check, if host is accessible
       if (!checkdnsrr($host, "MX") && !checkdnsrr($host, "A"))
       {
               return false;
       }

       return true;
}
?>

Regular Expression Test

function checkEmail($email) {
 if(preg_match("/^([a-zA-Z0-9])+([a-zA-Z0-9\._-])*@([a-zA-Z0-9_-])+([a-zA-Z0-9\._-]+)+$/",$email))
 {
    return true;
 }
 return false;
}

The above, with domain name validation:

function checkEmail($email) {
 if(preg_match("/^([a-zA-Z0-9])+([a-zA-Z0-9\._-])*@([a-zA-Z0-9_-])+([a-zA-Z0-9\._-]+)+$/",$email))
 {
    list($username,$domain)=split('@',$email);
    if(!checkdnsrr($domain,'MX')) {
        return false;
      }
 return true;
 }
 return false;
}

Tutorial Display Styled Directory Contents

by Unknown in php , Tutorial 0

Servers can be configured to show the contents of a directory that doesn't have an index file to render. The result is usually less than visually spectacular:

Lackluster default in Chrome

More better, View Demo

We can take control of this ourselves by replicating this functionality with PHP.

Make an index file (.index.php, starting with the dot, really) which reads the files in the directory and outputs them into a table Make an .htaccess file that serves that file as the index Have the index file load in CSS and other resources that are also prefixed with a dot (hidden)

The following PHP reads the directory of files and displays a styled table of their name, file type, and file size. It also applies a class name in which to apply icons for the different major file types (see CSS).

<!doctype html>
<html>

<head>
  <meta charset="UTF-8">
  <title>Directory Contents</title>
  <link rel="stylesheet" href=".style.css">
  <script src=".sorttable.js"></script>
</head>

<body>

  <div id="container">
  
    <h1>Directory Contents</h1>
    
    <table class="sortable">
      <thead>
        <tr>
          <th>Filename</th>
          <th>Type</th>
          <th>Size <small>(bytes)</small></th>
          <th>Date Modified</th>
        </tr>
      </thead>
      <tbody>
      <?php
        // Opens directory
        $myDirectory=opendir(".");
        
        // Gets each entry
        while($entryName=readdir($myDirectory)) {
          $dirArray[]=$entryName;
        }
        
        // Finds extensions of files
        function findexts ($filename) {
          $filename=strtolower($filename);
          $exts=split("[/\\.]", $filename);
          $n=count($exts)-1;
          $exts=$exts[$n];
          return $exts;
        }
        
        // Closes directory
        closedir($myDirectory);
        
        // Counts elements in array
        $indexCount=count($dirArray);
        
        // Sorts files
        sort($dirArray);
        
        // Loops through the array of files
        for($index=0; $index < $indexCount; $index++) {
        
          // Allows ./?hidden to show hidden files
          if($_SERVER['QUERY_STRING']=="hidden")
          {$hide="";
          $ahref="./";
          $atext="Hide";}
          else
          {$hide=".";
          $ahref="./?hidden";
          $atext="Show";}
          if(substr("$dirArray[$index]", 0, 1) != $hide) {
          
          // Gets File Names
          $name=$dirArray[$index];
          $namehref=$dirArray[$index];
          
          // Gets Extensions 
          $extn=findexts($dirArray[$index]); 
          
          // Gets file size 
          $size=number_format(filesize($dirArray[$index]));
          
          // Gets Date Modified Data
          $modtime=date("M j Y g:i A", filemtime($dirArray[$index]));
          $timekey=date("YmdHis", filemtime($dirArray[$index]));
          
          // Prettifies File Types, add more to suit your needs.
          switch ($extn){
            case "png": $extn="PNG Image"; break;
            case "jpg": $extn="JPEG Image"; break;
            case "svg": $extn="SVG Image"; break;
            case "gif": $extn="GIF Image"; break;
            case "ico": $extn="Windows Icon"; break;
            
            case "txt": $extn="Text File"; break;
            case "log": $extn="Log File"; break;
            case "htm": $extn="HTML File"; break;
            case "php": $extn="PHP Script"; break;
            case "js": $extn="Javascript"; break;
            case "css": $extn="Stylesheet"; break;
            case "pdf": $extn="PDF Document"; break;
            
            case "zip": $extn="ZIP Archive"; break;
            case "bak": $extn="Backup File"; break;
            
            default: $extn=strtoupper($extn)." File"; break;
          }
          
          // Separates directories
          if(is_dir($dirArray[$index])) {
            $extn="&lt;Directory&gt;"; 
            $size="&lt;Directory&gt;"; 
            $class="dir";
          } else {
            $class="file";
          }
          
          // Cleans up . and .. directories 
          if($name=="."){$name=". (Current Directory)"; $extn="&lt;System Dir&gt;";}
          if($name==".."){$name=".. (Parent Directory)"; $extn="&lt;System Dir&gt;";}
          
          // Print 'em
          print("
          <tr class='$class'>
            <td><a href='./$namehref'>$name</a></td>
            <td><a href='./$namehref'>$extn</a></td>
            <td><a href='./$namehref'>$size</a></td>
            <td sorttable_customkey='$timekey'><a href='./$namehref'>$modtime</a></td>
          </tr>");
          }
        }
      ?>
      </tbody>
    </table>
  
    <h2><?php print("<a href='$ahref'>$atext hidden files</a>"); ?></h2>
    
  </div>
  
</body>

</html>

The resources loaded in that index file are the top-in table sorter script sortable.js and a .style.css file. (Remember, prefacing the files with a dot makes the invisible in most operating systems, and also won't show up in your directory of files (good)). Here's that CSS:

* {
	padding:0;
	margin:0;
}

body {
	color: #333;
	font: 14px Sans-Serif;
	padding: 50px;
	background: #eee;
}

h1 {
	text-align: center;
	padding: 20px 0 12px 0;
	margin: 0;
}
h2 {
	font-size: 16px;
	text-align: center;
	padding: 0 0 12px 0; 
}

#container {
	box-shadow: 0 5px 10px -5px rgba(0,0,0,0.5);
	position: relative;
	background: white; 
}

table {
	background-color: #F3F3F3;
	border-collapse: collapse;
	width: 100%;
	margin: 15px 0;
}

th {
	background-color: #FE4902;
	color: #FFF;
	cursor: pointer;
	padding: 5px 10px;
}

th small {
	font-size: 9px; 
}

td, th {
	text-align: left;
}

a {
	text-decoration: none;
}

td a {
	color: #663300;
	display: block;
	padding: 5px 10px;
}
th a {
	padding-left: 0
}

td:first-of-type a {
	background: url(./.images/file.png) no-repeat 10px 50%;
	padding-left: 35px;
}
th:first-of-type {
	padding-left: 35px;
}

td:not(:first-of-type) a {
	background-image: none !important;
} 

tr:nth-of-type(odd) {
	background-color: #E6E6E6;
}

tr:hover td {
	background-color:#CACACA;
}

tr:hover td a {
	color: #000;
}





/* icons for file types (icons by famfamfam) */

/* images */
table tr td:first-of-type a[href$=".jpg"], 
table tr td:first-of-type a[href$=".png"], 
table tr td:first-of-type a[href$=".gif"], 
table tr td:first-of-type a[href$=".svg"], 
table tr td:first-of-type a[href$=".jpeg"]
{background-image: url(./.images/image.png);}

/* zips */
table tr td:first-of-type a[href$=".zip"] 
{background-image: url(./.images/zip.png);}

/* css */
table tr td:first-of-type a[href$=".css"] 
{background-image: url(./.images/css.png);}

/* docs */
table tr td:first-of-type a[href$=".doc"],
table tr td:first-of-type a[href$=".docx"],
table tr td:first-of-type a[href$=".ppt"],
table tr td:first-of-type a[href$=".pptx"],
table tr td:first-of-type a[href$=".pps"],
table tr td:first-of-type a[href$=".ppsx"],
table tr td:first-of-type a[href$=".xls"],
table tr td:first-of-type a[href$=".xlsx"]
{background-image: url(./.images/office.png)}

/* videos */
table tr td:first-of-type a[href$=".avi"], 
table tr td:first-of-type a[href$=".wmv"], 
table tr td:first-of-type a[href$=".mp4"], 
table tr td:first-of-type a[href$=".mov"], 
table tr td:first-of-type a[href$=".m4a"]
{background-image: url(./.images/video.png);}

/* audio */
table tr td:first-of-type a[href$=".mp3"], 
table tr td:first-of-type a[href$=".ogg"], 
table tr td:first-of-type a[href$=".aac"], 
table tr td:first-of-type a[href$=".wma"] 
{background-image: url(./.images/audio.png);}

/* web pages */
table tr td:first-of-type a[href$=".html"],
table tr td:first-of-type a[href$=".htm"],
table tr td:first-of-type a[href$=".xml"]
{background-image: url(./.images/xml.png);}

table tr td:first-of-type a[href$=".php"] 
{background-image: url(./.images/php.png);}

table tr td:first-of-type a[href$=".js"] 
{background-image: url(./.images/script.png);}

/* directories */
table tr.dir td:first-of-type a
{background-image: url(./.images/folder.png);}

View Demo Download Files

REMEMBER: The .zip file might appear to be empty, but it's not. The files are all prefaced with a dot. View them in a file editor which shows you "hidden" files.

Special thanks to Cliff White.

Update November 2012: The demo and downloadable files have been updated to 1) show more human readable file sizes 2) have error pages

Tutorial Display FeedBurner Feed Count

by Unknown in php , Tutorial 0

<?php
    //get cool feedburner count
    $whaturl="http://api.feedburner.com/awareness/1.0/GetFeedData?uri=your feedburner id";

    //Initialize the Curl session
    $ch = curl_init();

    //Set curl to return the data instead of printing it to the browser.
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

    //Set the URL
    curl_setopt($ch, CURLOPT_URL, $whaturl);

    //Execute the fetch
    $data = curl_exec($ch);

    //Close the connection
    curl_close($ch);
    $xml = new SimpleXMLElement($data);
    $fb = $xml->feed->entry['circulation'];
    echo $fb;
    //end get cool feedburner count
?>

Replace "your feedburner id" with your actual FeedBurner ID. Also, make sure your "Awareness API" is turned on in your FeedBurner settings for the particular feed you are pulling from.

Tutorial Display Array Contents

by Unknown in php , Tutorial 0

echo '<pre>';
print_r ($_POST);
echo '</pre>';

Tutorial Display a User Gravatar from an Email Address

by Unknown in php , Tutorial 0

<?php
  $gravatar_link = 'http://www.gravatar.com/avatar/' . md5($comment_author_email) . '?s=32';
   echo '<img src="' . $gravatar_link . '" />';
?>

The variable "$comment_author_email" would be a string of a valid email address. If the email isn't in the Gravatar database, it will return a default graphic. "$comment_author_email" is the default WordPress variable that populates from a cookie for people who have previously commented (if the theme supports it).

Tutorial Discover and Display Meta Tags

by Unknown in php , Tutorial 0

This is a completely styled page which displays meta tag information it pulls from provided URLs. Change the URL's at the top of the code to change the websites it gathers the information from.

<?php $searchmeta1 = get_meta_tags("http://northstarmediainc.com"); ?>
<?php $searchmeta2 = get_meta_tags("http://thecouponmagazine.com"); ?>

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
   <title>Meta Tag Finder</title>

       <style>
               *{
                       margin:0;
                       padding:0;
                       outline:0;
                       border:0;
               }
               html{min-height:100%; height:auto;}
               body{
                       background:#FFF;
                       font-size:12px;
                       font-family:verdana, arial, sans-serif;
                       color:000;
               }
               a{
                       text-decoration:none;
                       color:#999;
               }
               a:hover{
                       color:#666;
               }
               #container{
                       width:900px;
                       margin:0 auto;
               }
               h1{
                       font-weight:bold;
                       font-size:20px;
                       text-align:center;
                       padding:14px;
                       letter-spacing:1.5;
                       font-family: georgia, Sans-Serif;
                       border-bottom:1px dashed #666;
                       margin-bottom:20px;
               }
               h2{
                       font-weight:normal;
                       font-size:16px;
                       padding-top:10px;
               }
               h3{
                       font-weight:boldl;
                       font-size:14px;
                       text-align:center;
                       padding-bottom:10px;
                       font-style:italic;
               }
               #left{
                       float:left;
                       width:430px;
                       padding-bottom:40px;
               }
               #right{
                       float:right;
                       width:430px;
                       padding-bottom:40px;
               }
               .box1{
                       display:block;
                       height:70px;
                       color:#FFF;
                       background-color:#EF810E;
                       margin:10px;
                       padding:10px;
                       border:1px solid #CF6B00;
                       border-radius:10px;
                       -moz-border-radius:10px;
                       -webkit-border-radius:10px;
                       box-shadow: 10px 10px 5px #888;
               }
               .box2{
                       display:block;
                       height:70px;
                       color:#FFF;
                       background-color:#5C66FF;
                       margin:10px;
                       padding:10px;
                       border:1px solid #3340CF;
                       border-radius:10px;
                       -moz-border-radius:10px;
                       -webkit-border-radius:10px;
               }
       </style>

</head>
<body>


<div id="container">

       <h1>Meta Tag Finder</h1>

       <div id="left">

               <h3>NorthStar Media</h3>

               <h2>Author:</h2>
                       <div class="box1">
                               <?php echo ($searchmeta1["author"]); ?>
                       </div>

               <h2>Copyright:</h2>
                       <div class="box1">
                               <?php echo ($searchmeta1["copyright"]); ?>
                       </div>

               <h2>Description:</h2>
                       <div class="box1">
                               <?php echo ($searchmeta1["description"]); ?>
                       </div>

               <h2>Keywords:</h2>
                       <div class="box1">
                               <?php echo ($searchmeta1["keywords"]); ?>
                       </div>

               <h2>Robots:</h2>
                       <div class="box1">
                               <?php echo ($searchmeta1["robots"]); ?>
                       </div>

               <h2>Generator:</h2>
                       <div class="box1">
                               <?php echo ($searchmeta1["generator"]); ?>
                       </div>

       </div>


       <div id="right">

               <h3>The Coupon Magazine</h3>

               <h2>Author:</h2>
                       <div class="box2">
                               <?php echo ($searchmeta2["author"]); ?>
                       </div>

               <h2>Copyright:</h2>
                       <div class="box2">
                               <?php echo ($searchmeta2["copyright"]); ?>
                       </div>

               <h2>Description:</h2>
                       <div class="box2">
                               <?php echo ($searchmeta2["description"]); ?>
                       </div>

               <h2>Keywords:</h2>
                       <div class="box2">
                               <?php echo ($searchmeta2["keywords"]); ?>
                       </div>

               <h2>Robots:</h2>
                       <div class="box2">
                               <?php echo ($searchmeta2["robots"]); ?>
                       </div>

               <h2>Generator:</h2>
                       <div class="box2">
                               <?php echo ($searchmeta2["generator"]); ?>
                       </div>

       </div>


</div>

</body>
</html>

Reference URL

Tutorial Detect Location by IP

by Unknown in php , Tutorial 0

Returns "City, State" if found otherwise the default set at the top.

function detect_city($ip) {
        
        $default = 'UNKNOWN';

        if (!is_string($ip) || strlen($ip) < 1 || $ip == '127.0.0.1' || $ip == 'localhost')
            $ip = '8.8.8.8';

        $curlopt_useragent = 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 (.NET CLR 3.5.30729)';
        
        $url = 'http://ipinfodb.com/ip_locator.php?ip=' . urlencode($ip);
        $ch = curl_init();
        
        $curl_opt = array(
            CURLOPT_FOLLOWLOCATION  => 1,
            CURLOPT_HEADER      => 0,
            CURLOPT_RETURNTRANSFER  => 1,
            CURLOPT_USERAGENT   => $curlopt_useragent,
            CURLOPT_URL       => $url,
            CURLOPT_TIMEOUT         => 1,
            CURLOPT_REFERER         => 'http://' . $_SERVER['HTTP_HOST'],
        );
        
        curl_setopt_array($ch, $curl_opt);
        
        $content = curl_exec($ch);
        
        if (!is_null($curl_info)) {
            $curl_info = curl_getinfo($ch);
        }
        
        curl_close($ch);
        
        if ( preg_match('{<li>City : ([^<]*)</li>}i', $content, $regs) )  {
            $city = $regs[1];
        }
        if ( preg_match('{<li>State/Province : ([^<]*)</li>}i', $content, $regs) )  {
            $state = $regs[1];
        }

        if( $city!='' && $state!='' ){
          $location = $city . ', ' . $state;
          return $location;
        }else{
          return $default; 
        }
        
}

Reference URL

PHP function Detect IE5 or IE6

by Unknown in php , Tutorial 0

function getMSIE6() {
       $userAgent = strtolower($_SERVER["HTTP_USER_AGENT"]);
       if (ereg("msie 6", $userAgent) || ereg("msie 5", $userAgent)) {
               return true;
       }
       return false;
}

How to Detect AJAX Request by PHP

by Unknown in php , Tutorial 0

The HTTP_X_REQUESTED_WITH header is sent by all recent browsers that support AJAX requests.

if ( !empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest' )
{
       # Ex. check the query and serve requested data
}

Tutorial Debugging $_REQUEST

by Unknown in php , Tutorial 0

This snippet displays a nice list of all submitted data in a transparent box on the top left. Put this snippet preferable directly after <body>.

The box has some basic styling applied so that it will display a dark fixed box on the top left of the document that will automaticly show a scroll-bar if it becomes too long.

<div style="position:fixed; top:0; left: 0; width: 400px; background: rgb(0,0,0,0); background: rgba(0,0,0,0.8); color: green; margin:0px; padding:5px; max-height: 90%; overflow-y:auto;">
<h2 style="margin:0px;color:white;">$ HEADERS:</h2>
<h3 style="margin:5px;color:white;">GET</h3>
<?php

//var_dump($_GET);
foreach($_GET as $name=>$value) {
       echo $name."  =>  ";
       echo $value."<br />";
}

?>
<h3 style="margin:5px;color:white;">POST</h3>
<?php

//var_dump($_POST);
foreach($_POST as $name=>$value) {
       echo $name."  =>  ";
       echo $value."<br />";
}

?></div>

Tutorial Cross Domain GET Forwarding

by Unknown in php , Tutorial 0

When you do an AJAX request on a website, the URL you request from needs to reside on the same domain as where the request was made from. This is a security restriction imposed by the browser. There is a way to sneak around this by using a bit of a "man in the middle" approach.

PHP, being a server-side language, has the ability to pull content from any URL. So a PHP file can become the man in the middle. The contents of the PHP file can be set up to accept a URL as a parameter and then return the contents of that URL.

<?php

    echo file_get_contents($_GET['url']);
    // WARNING: You REALLY should write something to whitelist or otherwise limit what the function will accept, or it could be a security danger to your server (people could read any file).

?>

With that in place, we can do an AJAX request directly to that URL, passing it the URL we actually want the data from as a parameter. See how we are passing "http://google.com" as data below.

<script type='text/javascript' src='http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js?ver=1.3.2'></script>
<script type='text/javascript'>
    $(function() {
       $.ajax({
            type: "GET",
            dataType: 'html',
            data: 'url=http://google.com',
            url: 'get.php',
            success: function(data){
                // Yah! Do something cool with data
            },
            error: function(){
                // Boo! Handle the error.
            }
        }); 
    });
</script>

This is an extremely simple example. If you are interested in a more robust version, check out the Simple PHP Proxy.

Tutorial Crop Image

by Unknown in php , Tutorial 0

Displays a selected chunk of an image. In the example provided, the upper left 100px x 100px are shown.

<?php

$filename= "test.jpg";
list($w, $h, $type, $attr) = getimagesize($filename);
$src_im = imagecreatefromjpeg($filename);

$src_x = '0';   // begin x
$src_y = '0';   // begin y
$src_w = '100'; // width
$src_h = '100'; // height
$dst_x = '0';   // destination x
$dst_y = '0';   // destination y

$dst_im = imagecreatetruecolor($src_w, $src_h);
$white = imagecolorallocate($dst_im, 255, 255, 255);
imagefill($dst_im, 0, 0, $white);

imagecopy($dst_im, $src_im, $dst_x, $dst_y, $src_x, $src_y, $src_w, $src_h);

header("Content-type: image/png");
imagepng($dst_im);
imagedestroy($dst_im);

?>

Tutorial Create URL Slug from Post Title

by Unknown in php , Tutorial 0

Regular expression function that replaces spaces between words with hyphens.

<?php
function create_slug($string){
   $slug=preg_replace('/[^A-Za-z0-9-]+/', '-', $string);
   return $slug;
}
echo create_slug('does this thing work or not');
//returns 'does-this-thing-work-or-not'
?>

Tutorial Create Unique AlphaNumeric

by Unknown in php , Tutorial 0

function MakeUnique($length=16) {
           $salt       = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
           $len        = strlen($salt);
           $makepass   = '';
           mt_srand(10000000*(double)microtime());
           for ($i = 0; $i < $length; $i++) {
               $makepass .= $salt[mt_rand(0,$len - 1)];
           }
       return $makepass;
}

Tutorial Create Data URI’s

by Unknown in php , Tutorial 0

These can be useful for embedding images into HTML/CSS/JS to save on HTTP requests, at the cost of maintainability. More information. There are online tools to do it, but if you want your own very simple utility, here's some PHP to do it:

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

Tutorial Count Script Excecution Time

by Unknown in php , Tutorial 0

$execution_time = microtime(); # Start counting

# Your code

$execution_time = microtime() - $execution_time;
$execution_time = sprintf('It took %.5f sec', $execution_time);

Tutorial Convert HEX to RGB

by Unknown in php , Tutorial 0

Give function hex code (e.g. #eeeeee), returns array of RGB values.

function hex2rgb( $colour ) {
        if ( $colour[0] == '#' ) {
                $colour = substr( $colour, 1 );
        }
        if ( strlen( $colour ) == 6 ) {
                list( $r, $g, $b ) = array( $colour[0] . $colour[1], $colour[2] . $colour[3], $colour[4] . $colour[5] );
        } elseif ( strlen( $colour ) == 3 ) {
                list( $r, $g, $b ) = array( $colour[0] . $colour[0], $colour[1] . $colour[1], $colour[2] . $colour[2] );
        } else {
                return false;
        }
        $r = hexdec( $r );
        $g = hexdec( $g );
        $b = hexdec( $b );
        return array( 'red' => $r, 'green' => $g, 'blue' => $b );
}

Tutorial Convert Comma Separated String into Array

by Unknown in php , Tutorial 0

Easy way to turn a CSV file into a parseable array.

<?php
$str="foo,bar,baz,bat";
$arr=explode(",",$str);
// print_r($arr);
?>

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Showing posts with label php. Show all posts

Tutorial English Time to Seconds

Simple Usage

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Usage

Tutorial Email Address Validation

Simple

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PHP function Detect IE5 or IE6

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Tutorial Crop Image

Tutorial Create URL Slug from Post Title

Tutorial Create Unique AlphaNumeric

Tutorial Create Data URI’s

Tutorial Count Script Excecution Time

Tutorial Convert HEX to RGB

Tutorial Convert Comma Separated String into Array