Php Thumbnail

[Goins]

I want the thumbnail to be a certain size such as 150X150? Not sure how to change it tho.

 

 

function make_thumbnail($img, $thmb, $w, $h)
{
list($width, $height) = getimagesize($img);
$new_width  = ($width > $w) ? $w : $width;
$new_height = ($height > $h) ? $h : $height;

$ext = explode( ".", $img );
$ext = strtolower( $ext[count( $ext )-1] );
switch ($ext) {
	case 'gif': $type = 'gif'; break;
	case 'jpg': $type = 'jpeg'; break;
	case 'jpeg': $type = 'jpeg'; break;
	case 'png': $type = 'png'; break;
}

$image_p = imagecreatetruecolor($new_width, $new_height);
switch( $type ) {
	case 'gif': $image = imagecreatefromgif($img); break;
	case 'jpeg': $image = imagecreatefromjpeg($img); break;
	case 'png': $image = imagecreatefrompng($img); break;
}

$white = imagecolorallocate($image_p, 255, 255, 255);
imagefill($image_p, 1, 1, $white);

imagecopyresampled($image_p, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);

switch ($type) {
	case 'gif': imagegif($image_p, $thmb); break;
	case 'jpeg': imagejpeg($image_p, $thmb, 100); break;
	case 'png': imagepng($image_p, $thmb); break;
}
}

$pre_action   = explode(";", $_GET['opt']);
$action 	  = $pre_action[0];
foreach ( $pre_action as $a => $b )
{
if ( $a > 0 )
{
	$sub_action[] = $pre_action[$a];
}
}
?>

[soycharliente]

It looks like the function takes in the width and height as a parameter.

[Goins]

So how dose it decide on what the thumbnail width and height is going to be?  ???

[Goins]

Anyone I really need this last part!  :'(

[DarkerAngel]

This is an expert of a code I wrote a Long time ago you can play with it as you wish

<?php
if(($imagetype == 'jpg') or ($imagetype == 'jpeg')) {
	$image		= ImageCreateFromJPEG($imagefile);
	$dem		= getimagesize($imagefile);
	if($dem['0'] < $dem['1']) {
		$rate 	= $dem['1'] / 200;
		$rsiz	= array( 0 => $dem['0'] / $rate, 1 => 200);
	}
	else if($dem['0'] > $dem['1']) {
		$rate	= $dem['0'] / 200;
		$rsiz	= array( 0 => 200, 1 => $dem['1'] / $rate);
	}
	else if($dem['0'] == $dem['1']) {
		$rsiz	= array( 0 => 200, 1 => 200);
	} else { die('Size Calculation Error'); }
	$im	= imagecreatetruecolor($rsiz[0], $rsiz[1]) or die('Error Creating Image');
	imagecopyresampled($im, $image, 0, 0, 0, 0, $rsiz[0], $rsiz[1], $dem[0], $dem[1]) or die('Resize Error');
	header("Content-type: image/jpeg");
	imagejpeg($im);
	imagedestroy($immage);
	imagedestroy($im);
}
?>

 

You see all the 200's that was my thumbnail size and it keeps proper ratio, it also increases size if it was under 200px