New to PHP

[trehy2006]

hi, i am just learning PHP,
and am re-making my youth group's website into html with
some basic php tags like inlucde
(to save me changing every pages links on the nav!!)

i have come to needing to redo the diary. the old HTML one was very simple with a drop down list to select the date range, and linked to a whole page

in the PHP version i would like to use similar, but, when the option is selected in the list, it changes the include tag, thus reducing bandwidth, and loading times.

is this possible, and if so how??

there are 3 options in the list, and 3 diary pages.

TIA RT 1RichBB

[dalecosp]

I'd think it was possible ... what have you tried?

The new material would be called based on the evaluation of the $_POST ed variable (the one from the drop down.....)

[trehy2006]

I haven't yet tried anything as i dont know where to start!! :bemused:

[thorpe]

A basic example...

if (isset($_GET['diary'])) {
    include($_GET['diary']);
} else {
    echo "<form method=\"get\">";
    echo "  <select name=\"diary\">";
    echo "    <option value=\"diary1.php\">diary1";
    echo "    <option value=\"diary2.php\">diary2";
    echo "    <option value=\"diary3.php\">diary3";
    echo "  </select>";
    echo "<form>";
}

Be aware that this will have no effect on bandwidth or loading times as the whole page still needs to be reloaded. This example just displays static pages stored in the files diary1.php, diary2.php etc. If you wanted to make this whole thing dynamic, you would be best to store you diaries in a database and call them from there instead of using the include approuch.

[trehy2006]

unfortunately i have no access to databases on this hosting account

but, i need it to use an approach so it can just bring in the correct table for the term. is that possible??

[trehy2006]

ok thanks for the help, have decieded to use the above method, using page names according to term, rather than diary1.php etc. as this makes it easier to update and keep trak of "current" term page.

BUT,

again without using a database, i would like to create a simple photo gallery, with albums. is this possible without using a db??

[thorpe]

i would like to create a simple photo gallery, with albums. is this possible without using a db??

Yes.

You'll want to look at the filesystem functions and maybe even [man]gd[/man].

[trehy2006]

is there a command to slideshow images in a specified folder?

[trehy2006]

There are four files::

custom.php:

<?php 
if ($_SERVER['PHP_SELF'] == "/poss/gallery/custom.php") {
    echo "<center><font size='4' face='Verdana, Arial, Helvetica, sans-serif' color='#FF0000'>ERROR: Sorry, You cannot access this file directly...<br />\n</font></center>"; 
	exit;
	}

// path and size	
$imgageFolder = "/poss/gallery/images"; // path to images directory
$descriptionFolder = "/poss/gallery/"; // path to descriptions directory
$maxWidth_Height = 320; // image max width or max height

// slide show rotate time in seconds
$secTime = 5;

// main table
$maintableBGcolor = "#eeeeee";
$maintableBorder = 1;

// images table and images type
$imgBGcolor = "#eeeeee"; // images background color
$imageType = 0;   // 0 - all
                  // 1 - only GIF
                  // 2 - only JPG (JPEG)
				  // 3 - only PNG
				  // 4 - GIF and JPG
				  // 5 - GIF and PNG
				  // 6 - JPG and PNG


// links
$urls = 0;   // 0 = link from resized image to original image 
             // 1 = link from resized image to URL predefined in description.txt 
             // 2 = without link
$target = "_blank"; 


// fonts
$fontColor = "#CC0000"; //  font color 
$fontFace = "Verdana, Ariel, Helvetica"; // font face 
$fontSize = 11; // description font size
$acolor = "CC0000"; // link color in description
$ahover = "FF0000"; // mouse over link color in description
$avisited = "FF9900"; // visited link color in description


// navigation bar backgroud
$bgNav = "#eeeeee";


// descriptions
$description = "description.txt"; // descriptions file
$descriptionYesOrNo =  0; //  0 = no, 1 = yes


// image name on the top of description or on the top of the image if is decription set 0
$name = 0;   // 0 - none 
             // 1 - in description part displaying original image name and extension
			 // 2 - in description part displaying original image name without 
			 // extension and sort number/letter


// dimensions  on the top of description
$dimension = 1; // 0 - none, 1 - in description part displaying original image dimension

$descriptionWidth = $maxWidth_Height; // width for descriptions table
$descriptionHeight = $maxWidth_Height; // height for descriptions table
$imgTable = $maxWidth_Height+15; // images table width and height + min. space from border
?>

[trehy2006]

Frame.php:

<?php
include_once $_SERVER['DOCUMENT_ROOT'] . "/poss/gallery/custom.php";
include_once $_SERVER['DOCUMENT_ROOT'] . "/poss/gallery/fisherman.php";
?> 

Slideshow.php:

<?php
include_once $_SERVER["DOCUMENT_ROOT"] . "/poss/gallery/custom.php";
if($descriptionYesOrNo == 1) {
$frameWidth = ($imgTable+35) + $descriptionWidth + $maintableBorder;
$frameHeight = $imgTable+80 + $maintableBorder;
} else {
$frameWidth = $imgTable+35  + $maintableBorder;
$frameHeight = $imgTable+80 + $maintableBorder;
}
$src = $_SERVER["DOC_ROOT"] . "/poss/gallery/frame.php";
echo "<IFRAME SRC='$src' SCROLLING='auto' NAME='fisherman' WIDTH='$frameWidth' HEIGHT='$frameHeight' FRAMEBORDER='no'>
</IFRAME>";
?>

Is there some way to make this slideshow script, album specific??

[trehy2006]

Fisherman.php (part1):

<?php
if ($_SERVER['PHP_SELF'] == "/poss/gallery/fisherman.php") {
    echo "<center><font size='4' face='Verdana, Arial, Helvetica, sans-serif' color='#FF0000'>ERROR: Sorry, You cannot access this file directly...<br />\n</font></center>"; 
	exit;
	}

$path = $_SERVER['DOCUMENT_ROOT'];
$path2 = $_SERVER['DOC_ROOT'];

// sort and counting files in directory
$dir = $path . $imgageFolder;
$openDir  = opendir($dir);
    while (false !== ($fileNames = readdir($openDir))) {
        $allfiles[] = $fileNames;   

    }
        sort($allfiles); 
		for($o = 0; $o < count($allfiles); $o++) {
		      list($front, $ext) = explode(".", $allfiles[$o]);
			  if($front == "" || $ext == "") {
			       continue;
			  } else {
			       $files[] = $allfiles[$o];
			  }
		}

    for($i = 0; $i < count($files); $i++) {

// check files and get image informatons
	   $file = $imgageFolder . "/" . $files[$i];

   $imgYes = getimagesize($path . $file);
// check image type for displaying and kick out all non-image files 
       if($imageType == 0) {
	      $allow = $imgYes[2] == 1 || $imgYes[2] == 2 || $imgYes[2] == 3; // all types
       } elseif($imageType == 1) {
	      $allow = $imgYes[2] == 1; // only GIF
       } elseif($imageType == 2) {
	      $allow = $imgYes[2] == 2; // only JPG
       } elseif($imageType == 3) {
	      $allow = $imgYes[2] == 3; // only PNG
       } elseif($imageType == 4) {
	      $allow = $imgYes[2] == 1 || $imgYes[2] == 2; // GIF and JPG
       } elseif($imageType == 5) {
	      $allow = $imgYes[2] == 1 || $imgYes[2] == 3; // GIF and PNG
       } elseif($imageType == 6) {
	      $allow = $imgYes[2] == 2 || $imgYes[2] == 3; // JPG and PNG
       } else {
	      $allow = $imgYes[2] == 1 ||  $imgYes[2] == 2 || $imgYes[2] == 3; // all types
       }

   if($allow) {
      $image[] = $files[$i];	
   } else {
      continue;
   }
   }
asort($image, SORT_NUMERIC);

// prev, next and slide show navigation 
    $destination = $_POST['PHP_SELF'];
    $sec = $_GET['second'];
	$allImages = count($image);

if(empty($_GET['num']) || $_GET['num'] == 0) {
   $num = 0;
   $plus = $num+1;

      if(empty($_GET['second'])) {
$first = "<a href= $destination?num=0><img src='nav_img/first.gif' width='16' height='14' border='0' alt='first'></a>";

$l = $allImages-1;
$last = "<a href= $destination?num=$l><img src='nav_img/last.gif' width='16' height='14' border='0' alt='last'></a>";

$next = "<a href = $destination?num=$plus><img src='nav_img/next.gif' width='16' height='14' border='0' alt='next'></a>";

$prev = "<img src='nav_img/in_prev.gif' width='16' height='14' border='0'>";

$slideShow = "<a href = $destination?num=$num&second=$secTime><img src='nav_img/slide.gif' width='16' height='14' border='0' alt='Slide Show'></a>";

	  } else {
$slideShow = "<a href = $destination?num=$num><img src='nav_img/stop.gif' width='16' height='14' border='0' alt='Stop Show'> </a>";
$nextSlide = $destination . "?num=$plus&second=$sec"; 
		  }

} elseif($_GET['num'] == $allImages-1) {
   $num = $allImages - 1;
   $minus = $num-1;
      if(empty($_GET['second'])) {	   
$first = "<a href= $destination?num=0><img src='nav_img/first.gif' width='16' height='14' border='0' alt='first'></a>";

$l = $allImages-1;
$last = "<a href= $destination?num=$l><img src='nav_img/last.gif' width='16' height='14' border='0' alt='last'></a>";

$next = "<img src='nav_img/in_next.gif' width='16' height='14' border='0'>";

$prev = "<a href = $destination?num=$minus><img src='nav_img/prev.gif' width='16' height='14' border='0' alt='previous'></a>";

$slideShow = "<img src='nav_img/in_slide.gif' width='16' height='14' border='0'>";

	  } else {
$slideShow = "<a href = $destination?num=$num><img src='nav_img/stop.gif' width='16' height='14' border='0'  alt='Stop Show'> </a>";
$nextSlide = $destination . "?num=0";
		  }

} else {
   $num = $_GET['num'];
   $plus = $num+1;
   $minus = $num-1;
      if(empty($_GET['second'])) {	   
$first = "<a href= $destination?num=0><img src='nav_img/first.gif' width='16' height='14' border='0' alt='first'></a>";

$l = $allImages-1;
$last = "<a href= $destination?num=$l><img src='nav_img/last.gif' width='16' height='14' border='0' alt='last'></a>";

$next = "<a href = $destination?num=$plus><img src='nav_img/next.gif' width='16' height='14' border='0'  alt='next'></a>";

$prev = "<a href = $destination?num=$minus><img src='nav_img/prev.gif' width='16' height='14' border='0'  alt='previous'></a>";

$slideShow = "<a href = $destination?num=$num&second=$secTime><img src='nav_img/slide.gif' width='16' height='14' border='0' alt='Slide Show'></a>";

	  } else {
$slideShow = "<a href = $destination?num=$num><img src='nav_img/stop.gif' width='16' height='14' border='0' alt='Stop Show'></a>";
$nextSlide = $destination . "?num=$plus&second=$sec"; 
		  }
    }	

// read image array
    foreach($image as $key => $value) {

// grab an image from array
      if($key == $num){
         $display = $path . $imgageFolder . "/" . $image[$key];
         $display2 = $path2 . $imgageFolder . "/" . $image[$key];
         $sizes = getimagesize($display);

// resize images
	     if ($sizes[0] >= $sizes[1] && $sizes[0] > $maxWidth_Height) {
             $resize = $sizes[0]/$maxWidth_Height;
			 $width = round($sizes[0]/$resize); 
             $height = round($sizes[1]/$resize); 
         } elseif($sizes[0] < $sizes[1] && $sizes[1] > $maxWidth_Height) {
             $resize = $sizes[1]/$maxWidth_Height; 			 
			 $width = round($sizes[0]/$resize); 
             $height = round($sizes[1]/$resize);
         } else {
		     $width = $sizes[0];
			 $height = $sizes[1];
		}	
     }
  }

// check if is set image description or urls
    if($descriptionYesOrNo == 1 || $urls == 1) {

// open image description
    $fileName = $path . $descriptionFolder . "$description"; 
    $fileDes = file($fileName);

    foreach ($fileDes as $line) { 
       list($var, $targ, $desc) = explode('|', $line); 
         if ($var == $image[$num]) { 
           $description = $desc;
	       $URL = $targ;	   
           break;
         } else {
           $description = "";
         }
    } 
}

// again check if is set image description and print description table		
    if($descriptionYesOrNo == 1) {

// check if is set original name and dimension	    

		if($name == 1) {
		     $name = $image[$num] . "<br />\n";
		} elseif($name == 2) {
		     $string = explode(".", $image[$num]); 
			      if(strpos($string[0], "-") > 0) {
                       $string1 = explode("-", $string[0]);
					   $new1 = $string1[1];
				  } else {
				       $new1 = $string[0];
				  }

			  if(strpos($new1, "_") > 0) {
				   $string2 = explode("_", $new1);
				   $new2 = implode(" ", $string2);
			  } else {
			       $new2 = $new1;
			  }	  

         $name = $new2 . "<br />\n";

	} else {
	     $name ="";
	}

	if($dimension == 1) {
	     $dimension = $sizes[3] . "<br />\n";
	} else {
	     $dimension ="";
	}	

// descriptions table
      $allDescriptions  = "<table width='$descriptionWidth' border='0' cellpadding='0' cellspacing='0'>
    <tr> 
    <td width='10' valign='top'>&nbsp;</td>
    <td valign='top'><span class='descriptionFont'><br>
      $name $dimension <br>
      $description</span></td> 
	  <td width='5' valign='top'>&nbsp;</td>	
  </tr>
</table>";
   } else {

   if($name == 1) {
		     $names = $image[$num] . "<br />\n";
		} elseif($name == 2) {
		     $string = explode(".", $image[$num]); 
			      if(strpos($string[0], "-") > 0) {
                       $string1 = explode("-", $string[0]);
					   $new1 = $string1[1];
				  } else {
				       $new1 = trim($string[0]);
				  }

			  if(strpos($new1, "_") > 0) {
				   $string2 = explode("_", $new1);
				   $new2 = implode(" ", $string2);
			  } else {
			       $new2 = $new1;
			  }	  

         $names = $new2;

	} else {
	     $names ="";
	}

   }

[trehy2006]

fisherman.php (part2)

// check how is set urls 
    if($urls == 0) {
      $url = $display2;
    } elseif($urls == 1) {
      $url = $URL;
    } else {
      $url = "";
    }

// check how is set href and target 
    $href = "$url"; 
    if ($href  != "" && $target != "") {
       $ht = "href='$href' target='$target'";
    } elseif ($href != "") {
       $ht = "href='$href'";
    } else {
       $ht = "";
    }

// images table
$allImages = "<table width='$imgTable' border='0' cellpadding='0' cellspacing='0'>
  <tr> 
    <td width='$imgTable' height='$imgTable' valign='middle' align='center'bgcolor='$imgBGcolor'><a $ht><img src='$display2' width='$width' height='$height' border='0'></a></center></td>
   </tr>
  <tr> 
    <td height='22' valign='bottom' align='center' bgcolor='$bgNav'>$first $last &nbsp;$slideShow &nbsp;$prev $next</td>
  </tr>
</table>";

// main table display images and if is set descriptions
$dFontSize =  $fontSize . "px";
$navFontSize =  $nfSize . "px";

echo "<html>
<head> 
<META HTTP-EQUIV=Refresh CONTENT='$sec; URL=$nextSlide'>
<style type='text/css'>
<!--
.descriptionFont {  font-family: $fontFace; font-size: $dFontSize; color: $fontColor }
.navigationFont {  font-family: $fontFace; font-size: $navFontSize; color: $fontColor }
.slideShow { font-family: $fontFace; font-size: 9px; }
a { text-decoration:none; color: $acolor }
a:hover {color: $ahover}
a:visited {color: $avisited}
-->
</style>
</head>
<body leftmargin='3' topmargin='3' marginwidth='3' marginheight='3'>
<table width='$imgTable' border='$maintableBorder' cellpadding='0' cellspacing='0' >
  <tr> 
    <td width='160' height='39' valign='top'>
	<table width='$imgTable' border='0' cellpadding='0' cellspacing='0'  bgcolor='$maintableBGcolor'>
  <tr> 
    <td width='$imgTable' height='$imgTable' valign='top' align='center'><span class='descriptionFont'><center>$names</center></span>$allImages</td>
    <td width='50' valign='top'>$allDescriptions</td>
  </tr>
</table>
   </td>
  </tr>
</table>
</html>";
?>