Crop from the center and resize in PHP (function) - php

Question

I want to have a function that resizes to a specific height en weight of an image without losing the aspect ratio. So first i want to crop it and then resizing it.
This is what i got so far:
function image_resize($src, $dst, $width, $height, $crop=1){
if(!list($w, $h) = getimagesize($src)) return "Unsupported picture type!";
$type = strtolower(substr(strrchr($src,"."),1));
if($type == 'jpeg') $type = 'jpg';
switch($type){
case 'bmp': $img = imagecreatefromwbmp($src); break;
case 'gif': $img = imagecreatefromgif($src); break;
case 'jpg': $img = imagecreatefromjpeg($src); break;
case 'png': $img = imagecreatefrompng($src); break;
default : return "Unsupported picture type!";
}
// resize
$originalW = $w;
$originalH = $h;
if($crop){
if($w < $width or $h < $height) return "Picture is too small!";
$ratio = max($width/$w, $height/$h);
$h = $height / $ratio;
$x = ($w - $width / $ratio) / 2;
$w = $width / $ratio;
}
else{
if($w < $width and $h < $height) return "Picture is too small!";
$ratio = min($width/$w, $height/$h);
$width = $w * $ratio;
$height = $h * $ratio;
$x = 0;
}
$new = imagecreatetruecolor($width, $height);
// preserve transparency
if($type == "gif" or $type == "png"){
imagecolortransparent($new, imagecolorallocatealpha($new, 0, 0, 0, 127));
imagealphablending($new, false);
imagesavealpha($new, true);
}
imagecopyresampled($new, $img, 0, 0, ($originalW - $width)/2, ($originalH - $height)/2, $width, $height, $w, $h);
switch($type){
case 'bmp': imagewbmp($new, $dst); break;
case 'gif': imagegif($new, $dst); break;
case 'jpg': imagejpeg($new, $dst); break;
case 'png': imagepng($new, $dst); break;
}
return true;
}
The function is working fine. But i still have a problem. For example: When i resize a portrait image thats (300 × 450) to (260 x 140) i get a black side bar which i dont want.
Here are the 2 images:

Answer 1

It worked for me. You can try:
$x=288; $y=202; // my final thumb
$ratio_thumb=$x/$y; // ratio thumb
list($xx, $yy) = getimagesize($image); // original size
$ratio_original=$xx/$yy; // ratio original
if ($ratio_original>=$ratio_thumb) {
$yo=$yy;
$xo=ceil(($yo*$x)/$y);
$xo_ini=ceil(($xx-$xo)/2);
$xy_ini=0;
} else {
$xo=$xx;
$yo=ceil(($xo*$y)/$x);
$xy_ini=ceil(($yy-$yo)/2);
$xo_ini=0;
}
imagecopyresampled($thumb, $source, 0, 0, $xo_ini, $xy_ini, $x, $y, $xo, $yo);

Answer 2

works fine with:
imagecopyresampled($new, $img, 0, 0, 0, 0, $width, $height, $w, $h);