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CodeworkingPHPArticle ≫ How to resize and save image

How to resize and save image

Tue 29 Sep 2015, 06:47


This is my function to resize and save image in php:

function resizeImage($filename, $saveto, $max_width, $max_height)
{
	list($orig_width, $orig_height) = getimagesize($filename);
	$width = $orig_width;
	$height = $orig_height;
	# taller
	if ($height > $max_height) {
		$width = ($max_height / $height) * $width;
		$height = $max_height;
	}
	# wider
	if ($width > $max_width) {
		$height = ($max_width / $width) * $height;
		$width = $max_width;
	}
	$image_p = imagecreatetruecolor($width, $height);
	
	$exts=explode(".", $saveto);
	$ext=$exts[count($exts) - 1];
	switch(strtolower($ext)){
		case "jpg":
			$image = imagecreatefromjpeg($filename);
			break;
		case "jpeg":
			$image = imagecreatefromjpeg($filename);
			break;
		case "png":
			$image = imagecreatefrompng($filename);
			break;
		case "gif":
			$image = imagecreatefromgif($filename);
			break;
	}
	
	imagecopyresampled($image_p, $image, 0, 0, 0, 0, $width, $height, $orig_width, $orig_height);
	switch(strtolower($ext)){
		case "jpg":
			imagejpeg($image_p,$saveto,100);
			break;
		case "jpeg":
			imagejpeg($image_p,$saveto,100);
			break;
		case "png":
			imagepng($image_p,$saveto,100);
			break;
		case "gif":
			imagegif($image_p,$saveto,100);
			break;
	}
}

example:

resizeImage($file[‘post variable']['tmp_name’],$destinationpath, 800, 800);

 

 


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