Functions

[dezkit]

I have these two scripts:

<?php 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,100); ?>

 

and I have

 

<?php
// The file
$filename = 'http://www.riversidecity.ie/images/Photos/Docklands%20City.jpg';

// Set a maximum height and width
$width = 80;
$height = 80;

// 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);

// Output
imagejpeg($image_p, null, 100);
?>

 

How do i make a function out of the second script?

[Yesideez]

<?php
function resize($filename,$width,$height,$type) {
header($type);

// 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);

// Output
imagejpeg($image_p, null, 100);
}
?>

 

Call it like this:

resize('http://www.riversidecity.ie/images/Photos/Docklands%20City.jpg',80,80,'Content-type: image/jpeg');

 

You might want to remove the header() line and parameter though if you want to use this after stuff has been sent to the browser.

[dezkit]

noo

I want to move the cropped picture to a folder after i crop the original picture. thanks so much!

[trq]

functions.