Есть функция для резкий фото, при работе с png картинкой выдает ошибку
Warning: imagepng() [function.imagepng]: gd-png error: compression level must be 0 through 9
Ошибку выводит на этот участок кода
imagecopyresampled($idest, $isrc, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
$res = $iresfunc($idest, $dest_path, $quality);
function img_resize($ini_path, $dest_path, $params = array()) {
$width = !empty($params['width']) ? $params['width'] : null;
$height = !empty($params['height']) ? $params['height'] : null;
$constraint = !empty($params['constraint']) ? $params['constraint'] : false;
$rgb = !empty($params['rgb']) ? $params['rgb'] : 0xFFFFFF;
$quality = !empty($params['quality']) ? $params['quality'] : 100;
$aspect_ratio = isset($params['aspect_ratio']) ? $params['aspect_ratio'] : true;
$crop = isset($params['crop']) ? $params['crop'] : true;
if (!file_exists($ini_path)) return false;
if (!is_dir($dir=dirname($dest_path))) mkdir($dir);
$img_info = getimagesize($ini_path);
if ($img_info === false) return false;
$ini_p = $img_info[0]/$img_info[1];
if ( $constraint ) {
$con_p = $constraint['width']/$constraint['height'];
$calc_p = $constraint['width']/$img_info[0];
if ( $ini_p < $con_p ) {
$height = $constraint['height'];
$width = $height*$ini_p;
} else {
$width = $constraint['width'];
$height = $img_info[1]*$calc_p;
}
} else {
if ( !$width && $height ) {
$width = ($height*$img_info[0])/$img_info[1];
} else if ( !$height && $width ) {
$height = ($width*$img_info[1])/$img_info[0];
} else if ( !$height && !$width ) {
$width = $img_info[0];
$height = $img_info[1];
}
}
preg_match('/\.([^\.]+)$/i',basename($dest_path), $match);
$ext = $match[1];
$output_format = ($ext == 'jpg') ? 'jpeg' : $ext;
$format = strtolower(substr($img_info['mime'], strpos($img_info['mime'], '/')+1));
$icfunc = "imagecreatefrom" . $format;
$iresfunc = "image" . $output_format;
if (!function_exists($icfunc)) return false;
$dst_x = $dst_y = 0;
$src_x = $src_y = 0;
$res_p = $width/$height;
if ( $crop && !$constraint ) {
$dst_w = $width;
$dst_h = $height;
if ( $ini_p > $res_p ) {
$src_h = $img_info[1];
$src_w = $img_info[1]*$res_p;
$src_x = ($img_info[0] >= $src_w) ? floor(($img_info[0] - $src_w) / 2) : $src_w;
} else {
$src_w = $img_info[0];
$src_h = $img_info[0]/$res_p;
$src_y = ($img_info[1] >= $src_h) ? floor(($img_info[1] - $src_h) / 2) : $src_h;
}
} else {
if ( $ini_p > $res_p ) {
$dst_w = $width;
$dst_h = $aspect_ratio ? floor($dst_w/$img_info[0]*$img_info[1]) : $height;
$dst_y = $aspect_ratio ? floor(($height-$dst_h)/2) : 0;
} else {
$dst_h = $height;
$dst_w = $aspect_ratio ? floor($dst_h/$img_info[1]*$img_info[0]) : $width;
$dst_x = $aspect_ratio ? floor(($width-$dst_w)/2) : 0;
}
$src_w = $img_info[0];
$src_h = $img_info[1];
}
$isrc = $icfunc($ini_path);
$idest = imagecreatetruecolor($width, $height);
if ( ($format == 'png' || $format == 'gif') && $output_format == $format ) {
imagealphablending($idest, false);
imagesavealpha($idest,true);
imagefill($idest, 0, 0, IMG_COLOR_TRANSPARENT);
imagealphablending($isrc, true);
$quality = 0;
} else {
imagefill($idest, 0, 0, $rgb);
}
imagecopyresampled($idest, $isrc, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
$res = $iresfunc($idest, $dest_path, $quality);
imagedestroy($isrc);
imagedestroy($idest);
return $res;
}