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short url in wordpress with tinyurl

paste the function in function.php file and call in you template with:

<?php echo 'ID)).'">short url'; ?>

<?php

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

?>

force file download

<?php	
if($_GET){
	if($_GET['file']) {
		$filename = $_GET['file'];
		$download_path = "files/";
	}

	if(eregi("\.\.", $filename)) die("I'm sorry, you may not download that file.");
	$file = str_replace("..", "", $filename);
	if(eregi("\.ht.+", $filename)) die("I'm sorry, you may not download that file.");
	$file = "$download_path$file";
	if(!file_exists($file)) die("I'm sorry, the file doesn't seem to exist.");
	$type = filetype($file);
	$today = date("F j, Y, g:i a");
	$time = time();

	header("Content-type: $type");
	header("Content-Disposition: attachment;filename=$filename");
	header("Content-Transfer-Encoding: binary");
	header("Cache-Control: ");
	header("Pragma: ");
	set_time_limit(0);
	readfile($file);
}
?>

watermark

function watermark($imagesource){
	$filetype = substr($imagesource,strlen($imagesource)-4,4); 
	$filetype = strtolower($filetype); 
	if($filetype == ".gif")  $image = @imagecreatefromgif($imagesource);  
	if($filetype == ".jpg")  $image = @imagecreatefromjpeg($imagesource);  
	if($filetype == ".png")  $image = @imagecreatefrompng($imagesource);  
	if (!$image) die(); 
	$watermark = @imagecreatefrompng('../images/watermark.png'); 
	$imagewidth = imageSX($image); 
	$imageheight = imageSY($image);  
	$watermarkwidth =  imageSX($watermark); 
	$watermarkheight =  imageSY($watermark); 
	$startwidth = $imagewidth - $watermarkwidth - 5;  
	$startheight = $imageheight - $watermarkheight - 5;
	imagecopy($image, $watermark,  $startwidth, $startheight, 0, 0, $watermarkwidth, $watermarkheight); 
	imagejpeg($image,$imagesource);
	imagedestroy($image); 
	imagedestroy($watermark);
}

wordpress functions to count posts

for example: save all functions in 'your_theme/stats.php'

<?php

// comments_count
function comments_count() { 
    global $wpdb; 
    $count = "SELECT COUNT(*) FROM $wpdb->comments WHERE comment_approved = '1'"; 
    echo $wpdb->get_var($count); 
} 
// < ?php comments_count() ?> comments

// posts_count
function posts_count() { 
    global $wpdb; 
    $count = "SELECT COUNT(*) FROM $wpdb->posts WHERE post_status = 'publish'"; 
    echo $wpdb->get_var($count); 
} 
// <?php posts_count() ?></strong> articles

// retro_count
function retro_count() { 
    global $wpdb; 
    $count = "SELECT COUNT(*) FROM $wpdb->comments WHERE comment_type = 'pingback'"; 
    echo $wpdb->get_var($count); 
} 
// < ?php retro_count() ?> pingbacks

?>

php script for mysql backup

<?php

function backup_tables($host,$user,$pass,$name,$tables = '*'){
	
	$link = mysql_connect($host,$user,$pass);
	mysql_select_db($name,$link);
	
	//get all of the tables
	if($tables == '*')
	{
		$tables = array();
		$result = mysql_query('SHOW TABLES');
		while($row = mysql_fetch_row($result))
		{
			$tables[] = $row[0];
		}
	}
	else
	{
		$tables = is_array($tables) ? $tables : explode(',',$tables);
	}
	
	//cycle through
	foreach($tables as $table)
	{
		$result = mysql_query('SELECT * FROM '.$table);
		$num_fields = mysql_num_fields($result);
		for ($i = 0; $i < $num_fields; $i++) 
		{
			$return.= 'DROP TABLE '.$table.';';
			
			$row2 = mysql_fetch_row(mysql_query('SHOW CREATE TABLE '.$table));
			$return.= "\n\n".$row2[1].";\n\n";
			
			while($row = mysql_fetch_row($result))
			{
				$return.= 'INSERT INTO '.$table.' VALUES(';
				for($j=0; $j<$num_fields; $j++) 
				{
					$row[$j] = addslashes($row[$j]);
					$row[$j] = ereg_replace("\n","\\n",$row[$j]);
					if (isset($row[$j])) { $return.= '"'.$row[$j].'"' ; } else { $return.= '""'; }
					if ($j<($num_fields-1)) { $return.= ','; }
				}
				$return.= ");\n";
			}
		}
		$return.="\n\n\n";
	}
	
	//save file
	$handle = fopen('db-backup-'.time().'-'.(md5(implode(',',$tables))).'.sql','w+');
	fwrite($handle,$return);
	fclose($handle);
}

backup_tables('localhost','username','password','blog');

?>

resize image

<?
////////////////////////////////////////////////////////////////////////////////////
// generate a croped-image from a picture
// source: http://mediumexposure.com/techblog/smart-image-resizing-while-preserving-transparency-php-and-gd-library
// resizes a image, without crop
// usage: resizeImage("test/6.jpg", "540", "720", true, "test/output.jpg")
////////////////////////////////////////////////////////////////////////////////////

function resizeImage( $file, $width = 0, $height = 0, $proportional = false, $output = 'file') {
	$info = getimagesize($file);
	$image = '';
	$final_width = 0;
	$final_height = 0;
	list($width_old, $height_old) = $info;
	if ($proportional) {
		if ($width == 0) $factor = $height/$height_old;
		elseif ($height == 0) $factor = $width/$width_old;
		else $factor = min ( $width / $width_old, $height / $height_old);  
		$final_width = round ($width_old * $factor);
		$final_height = round ($height_old * $factor);
	}
	else {
		$final_width = ( $width <= 0 ) ? $width_old : $width;
		$final_height = ( $height <= 0 ) ? $height_old : $height;
	}
	switch ( $info[2] ) {
		case IMAGETYPE_GIF:
			$image = imagecreatefromgif($file);
		break;
		case IMAGETYPE_JPEG:
			$image = imagecreatefromjpeg($file);
		break;
		case IMAGETYPE_PNG:
			$image = imagecreatefrompng($file);
		break;
		default:
			return false;
	}
        
	$image_resized = imagecreatetruecolor( $final_width, $final_height );
			
	if ( ($info[2] == IMAGETYPE_GIF) || ($info[2] == IMAGETYPE_PNG) ) {
		$trnprt_indx = imagecolortransparent($image);

		if ($trnprt_indx >= 0) {
			$trnprt_color    = imagecolorsforindex($image, $trnprt_indx);
			$trnprt_indx    = imagecolorallocate($image_resized, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']);
			imagefill($image_resized, 0, 0, $trnprt_indx);
			imagecolortransparent($image_resized, $trnprt_indx);
		} 
		elseif ($info[2] == IMAGETYPE_PNG) {
			imagealphablending($image_resized, false);
			$color = imagecolorallocatealpha($image_resized, 0, 0, 0, 127);
			imagefill($image_resized, 0, 0, $color);
			imagesavealpha($image_resized, true);
		}
	}
	imagecopyresampled($image_resized, $image, 0, 0, 0, 0, $final_width, $final_height, $width_old, $height_old);    
        
	switch ( strtolower($output) ) {
		case 'browser':
			$mime = image_type_to_mime_type($info[2]);
			header("Content-type: $mime");
			$output = NULL;
		break;
		case 'file':
			$output = $file;
		break;
		case 'return':
			return $image_resized;
		break;
		default:
		break;
	}
	switch ( $info[2] ) {
		case IMAGETYPE_GIF:
			imagegif($image_resized, $output);
		break;
		case IMAGETYPE_JPEG:
			imagejpeg($image_resized, $output);
		break;
		case IMAGETYPE_PNG:
			imagepng($image_resized, $output);
		break;
		default:
			return false;
	}
	return true;
}
?>

resize image with crop

////////////////////////////////////////////////////////////////////////////////////
// generate a croped-image from a picture
// source: http://www.seaton-online.com/forum/index.php?showtopic=545
// usage: cropImage("300", "225", "test/5.jpg", "jpg", "test/output.jpg");
////////////////////////////////////////////////////////////////////////////////////

function cropImage($nw, $nh, $source, $stype, $dest) {
         $size = getimagesize($source);
         $w = $size[0];
         $h = $size[1];

          switch($stype) {
              case 'gif':
              $simg = imagecreatefromgif($source);
              break;
              case 'jpg':
              $simg = imagecreatefromjpeg($source);
              break;
              case 'png':
              $simg = imagecreatefrompng($source);
              break;
          }

          $dimg = imagecreatetruecolor($nw, $nh);
          $wm = $w/$nw;
          $hm = $h/$nh;
          $h_height = $nh/2;
          $w_height = $nw/2;

          if($w> $h) {
              $adjusted_width = $w / $hm;
              $half_width = $adjusted_width / 2;
              $int_width = $half_width - $w_height;
              imagecopyresampled($dimg,$simg,-$int_width,0,0,0,$adjusted_width,$nh,$w,$h);
          } elseif(($w <$h) || ($w == $h)) {
              $adjusted_height = $h / $wm;
              $half_height = $adjusted_height / 2;
              $int_height = $half_height - $h_height;
              imagecopyresampled($dimg,$simg,0,-$int_height,0,0,$nw,$adjusted_height,$w,$h);
          } else {
              imagecopyresampled($dimg,$simg,0,0,0,0,$nw,$nh,$w,$h);
          }

          imagejpeg($dimg,$dest,80);
}

hello kitty em php

<?php

echo "hello kitty";

?>

undescored para CameCase em PHP

Transforma uma string usando underscores para CamelCase

$name = 'we_love_code';
preg_replace('/_([a-z])/e', 'strtoupper(\\1)', "_{$name}");

activing php_auth on dreamhost

by default, dreamhost runs php as cgi.
the follow line switchs from cgi to apache module execution, supporting php_auth.

// create a .htaccess with this: 
AddHandler application/x-httpd-php .php
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