Image crop using php

by Prabakaran 2012-08-16 12:05:48

<?php
cropImage(150,100, 'Australia.png', 'png', 'image.png');
function cropImage($nw, $nh, $source, $stype, $dest) {
$size = getimagesize($source);
echo "<br>".$w = 500;
echo "<br>".$h = 400;
switch($stype) {
case 'gif':
$simg = imagecreatefromgif($source);
break;
case 'jpg':
$simg = imagecreatefromjpeg($source);
break;
case 'png':
$simg = imagecreatefrompng($source);
break;
}
$dimg = imagecreatetruecolor($nw, $nh);
echo "<br>".$wm = $w/$nw;
echo "<br>".$hm = $h/$nh;
echo "<br>".$h_height = $nh/2;
echo "<br>".$w_height = $nw/2;
if($w> $h) {
echo "<br>".$adjusted_width = $w / $hm;
echo "<br>".$half_width = ($adjusted_width / 2)+25;
echo "<br>".$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);
}
?>
<br>
<img src='test.png' border=1>������<img src='image.png' style='border:1px solid red;' >

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