Resizing and then cropping an image.

[jond]

Hi, I'm trying to resize and then crop an image. I found the following code for resizing an image.

 

<?php
// The file
$filename = $_GET['src'];

// Set a maximum height and width
$width = 256;
$height = 1000;

// Content type
header('Content-type: image/jpeg');

// Get new dimensions
list($width_orig, $height_orig) = getimagesize($filename);

$ratio_orig = $width_orig/$height_orig;

if ($width/$height > $ratio_orig) {
   $width = $height*$ratio_orig;
} else {
   $height = $width/$ratio_orig;
}

// Resample
$image_p = imagecreatetruecolor($width, $height);
$image = imagecreatefromjpeg($filename);
imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $width_orig, $height_orig);

imagejpeg($image_p, null, 100);

?>

 

I thought that I could put the result into a variable like

 

$resized = imagejpeg($image_p, null, 100);

 

to then use with this code for cropping the image. Replacing the $_GET with the $resized variable

 

<?php
$x=0;
$y=0;
$filename=$_GET['src'];
header('Content-type:image/jpg');
header('Content-Disposition: attachment;filename='.$src);
list($width, $height, $type, $attr) = getimagesize($filename);
$w= $width ;
$h= 86;
$image=imagecreatefromjpeg($filename);
$crop=imagecreatetruecolor($w,$h);
imagecopy($crop,$image,0,0,$x,$y,$w,$h);
imagejpeg($crop);
?>

 

It seems though that I am wrong.  Could someone help me with this? Thanks! 

[MadTechie]

As your not writing the image back to a file the second code won't work, try this instead

 

replace

imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $width_orig, $height_orig);
imagejpeg($image_p, null, 100);

?>

<?php
$x=0;
$y=0;
$height= 86;
imagecopyresampled($image_p, $image, 0, 0, $x, $y, $width, $height, $width_orig, $height_orig);
imagejpeg($image_p);
?>

[jond]

Thanks MadTechie! I took what you said and fixed it a little to get the result I wanted. For anyone else interested this is the code.

 

<?php
// The file
$filename = $_GET['src'];

// Set a maximum height and width
$width = 256;
$height = 1000;

// Content type
header('Content-type: image/jpeg');

// Get new dimensions
list($width_orig, $height_orig) = getimagesize($filename);

$ratio_orig = $width_orig/$height_orig;

if ($width/$height > $ratio_orig) {
   $width = $height*$ratio_orig;
} else {
   $height = $width/$ratio_orig;
}

$height = 83;

// Resample
$image_p = imagecreatetruecolor($width, $height);
$image = imagecreatefromjpeg($filename);

$x=0;
$y=0;
$width=256;
$height_orig = $height * $ratio_orig;
imagecopyresampled($image_p, $image, 0, 0, $x, $y, $width, $height, $width_orig, $height_orig);
imagejpeg($image_p);
?>