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help with my image gallery

thejj924

By thejj924
in PHP Coding Help

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thejj924 Newbie

thejj924

Posted
Posted 

<html>
<head>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="thickbox.js"></script>
<link rel="stylesheet" href="thickbox.css" type="text/css" media="screen" />
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<?php
$columns     = 4;
$thmb_width  = 150;
$thmb_height = 120;

function resizeImage($originalImage,$toWidth,$toHeight){
    
    // Get the original geometry and calculate scales
    list($width, $height) = getimagesize($originalImage);
    $xscale=$width/$toWidth;
    $yscale=$height/$toHeight;
    
    // Recalculate new size with default ratio
    if ($yscale>$xscale){
        $new_width = round($width * (1/$yscale));
        $new_height = round($height * (1/$yscale));
    }
    else {
        $new_width = round($width * (1/$xscale));
        $new_height = round($height * (1/$xscale));
    }
    // Resize the original image
    $imageResized = imagecreatetruecolor($new_width, $new_height);
    $imageTmp     = imagecreatefromjpeg ($originalImage);
    imagecopyresampled($imageResized, $imageTmp, 0, 0, 0, 0, $new_width, $new_height, $width, $height);

    return $imageResized;
} 

function generateThumbnails(){
global $thmb_width,$thmb_height;

// Open the actual directory
if ($handle = opendir(".")) {
	// Read all file from the actual directory
	while ($file = readdir($handle))  {
		// Check whether tha actual item is a valid file
		if (is_file($file)){
			// Check whether the actual image is a thumbnail
      		if (strpos($file,'_th.jpg')){
      			$isThumb = true;
      		} else {
	      		$isThumb = false;
	      	}
      	
      		if (!$isThumb) {
	      		// Process the file string
      			$dirName  = substr($file,0,strpos($file,basename($file)));
      			if (strlen($dirName) < 1) $dirName = '.';
      			$fileName = basename($file);
      			$fileMain = substr($fileName,0,strrpos($fileName,'.'));
      			$extName  = substr($fileName,strrpos($fileName,'.'),
      								strlen($fileName)-strrpos($fileName,'.'));
  					
      			// Check if the actual file is a jpeg image
      			if (($extName == '.jpg') || ($extName == '.jpeg')||($extName== '.JPG')){
		    		$thmbFile = $dirName.'/'.$fileMain.'_th.jpg';
		    		// If a thumbnail dosn't exists tahn create a new one
		    		if (!file_exists($thmbFile)){
			    		imagejpeg(resizeImage($file,$thmb_width,$thmb_height),$thmbFile,80);
			    	}
				}
      		} 
   		}
   		}
}

}

function getNormalImage($file){
$base = substr($file,0,strrpos($file,'_th.jpg'));
if (file_exists($base.'.jpg')) return $base.'.jpg';
elseif (file_exists($base.'.jpeg')) return $base.'.jpeg';
else return "";
}

function displayPhotos(){
global $columns;

generateThumbnails();
$act = 0;
// Open the actual directory
if ($handle = opendir(".")) {
	// Read all file from the actual directory
	while ($file = readdir($handle))  {
		// Check whether tha actual item is a valid file
				if (is_file($file)){
			// Check whether the actual image is a thumbnail
      		if (strpos($file,'_th.jpg')){
				++$act;
				if ($act > $columns) {
					echo '</tr><tr><td class="photo"><a href="'.getNormalImage($file).'" class="thickbox"><img src="'.$file.'" alt="'.$file.'"/></a></td>';	
					$act = 1;
				} else {
					echo '<td class="photo"><a href="'.getNormalImage($file).'"class="thickbox"><img src="><img src="'.$file.'" alt="'.$file.'"/></a></td>';	
				}
      			
      		}
      	}
	}
}	
}

?>
<style type="text/css">
body,td,th {
font-family: Arial, Helvetica, sans-serif;
font-size: 12px;
color: #000;
}
a:link {
color: #000;
}
a:visited {
color: #000;
}
a:hover {
color: #000;
}
a:active {
color: #000;
}
.Main {
Color:000;
font:Arial, Helvetica, sans-serif;
font-size:12pt;
}
-->
</style></head>
<body bgcolor="#555555" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0"><Center>
<table width="805" bgcolor="#999999">
<tr><td><center>
<table id="Table_01" width="800" height="200" border="0" cellpadding="0" cellspacing="0">
<tr>
	<td colspan="7">
		<img src="../images/banner_01.jpg" width="800" height="164" alt=""></td>
</tr>
<tr>
	<td><a href="../index2.html"><img src="../images/Untitled-1_02.jpg" width="100" height="36" border="0" alt=""></a></td>
	<td><a href="../models.html"><img src="../images/Untitled-1_03.jpg" width="100" height="36" border="0" alt=""></a></td>
	<td><a href="../access.html"><img src="../images/Untitled-1_04.jpg" width="100" height="36" border="0" alt=""></a></td>
	<td>
		<img src="../images/Untitled-1_05.jpg" width="200" height="36" border="0" alt=""></td>
	<td><a href="index.php"><img src="../images/Untitled-1_06.jpg" width="100" height="36" border="0" alt=""></a></td>
	<td><a href="../aboutus.html"><img src="../images/Untitled-1_07.jpg" width="100" border="0" height="36" alt=""></a></td>
	<td><a href="contact.html"><img src="../images/banner_08.jpg" width="100" border="0" height="36" alt=""></a></td>
</tr>
<tr>
  <td colspan="7">  <table align="center"><tr>
  <center><b><font size="11pt">Welcome to Our Photo Gallery</font></b></center>
  <?php displayPhotos(); ?>

</table>
        </td>
  </tr>
</table>
</center></td></tr></table>
</Center>
</body>
</html>

when i view source on the page when uploaded it comes up as

	  <td class="photo"><a href=""class="thickbox"><img src="><img src="boardtrackerrightside_th.jpg" alt="boardtrackerrightside_th.jpg"/></a></td><td class="photo"><a href=""class="thickbox"><img src="><img src="boardtrackerleftside_th.jpg" alt="boardtrackerleftside_th.jpg"/></a></td><td class="photo"><a href=""class="thickbox"><img src="><img src="beachcomberrightside_th.jpg" alt="beachcomberrightside_th.jpg"/></a></td><td class="photo"><a href=""class="thickbox"><img src="><img src="beachcomberleftside_th.jpg" alt="beachcomberleftside_th.jpg"/></a></td>

 

Link to comment
https://forums.phpfreaks.com/topic/202876-help-with-my-image-gallery/
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andrewgauger Newbie

andrewgauger

Posted
Posted

Found it:

 

 

you need brackets around these lines:

 

if (file_exists($base.'.jpg')) return $base.'.jpg';

elseif (file_exists($base.'.jpeg')) return $base.'.jpeg';

else return "";

 

as:

 

if (file_exists($base.'.jpg')) {return $base.'.jpg'}
elseif (file_exists($base.'.jpeg')) {return $base.'.jpeg'}
else {return ""}

 

I love using the bracketless if syntax for solid one liners, but you need the brackets for an if else OR if elseif else

jcbones Newbie

jcbones

Posted
Posted

I've never had a script to fail a one line bracketless syntax for if/elseif/else statements.  Although, I agree that it is good practice to use brackets for all if/else statements.

 

I tested your getNormalImage() function, and it seems to work correctly.  I cannot test your displayPhotos() function, but did see some problems with it.  You can compare the changes I made, some may be redundant and not needed, but ...

function displayPhotos(){
   global $columns;
   
   generateThumbnails();
   $act = 0;
   // Open the actual directory
   if ($handle = opendir(".")) {
      // Read all file from the actual directory
      while (false !== ($file = readdir($handle)))  {
         // Check whether tha actual item is a valid file
               if (is_file($file) && ($file != '.' || $file != '..')){
            // Check whether the actual image is a thumbnail
               if (strpos($file,'_th.jpg') !== false){
               ++$act;
               if ($act > $columns) {
                  echo '</tr><tr><td class="photo"><a href="'.getNormalImage($file).'" class="thickbox"><img src="'.$file.'" alt="'.$file.'"/></a></td>';   
                  $act = 1;
               } else {
                  echo '<td class="photo"><a href="'.getNormalImage($file).'"class="thickbox"><img src="><img src="'.$file.'" alt="'.$file.'"/></a></td>';   
               }
                  
               }
            }
      }
   }   
}

 

I see it is already fixed, but added this anyway.  Since I spent time on it.  :shrug:

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