Crop dan Resize Gambar dari URL


Script ini saya gunakan untuk menampilkan thumbnail berita, kenapa saya “resize” dan “crop”? alasannya supaya ukurannya pas dan tidak memberatkan saat membuka website.

Lansung saja scriptnya :

<?php 

        $url="http://localhost/namagambar.jpg";
	$image = imagecreatefromjpeg($url);
	$filename = 'cropped_whatever.jpg';

	$thumb_width = 150;
	$thumb_height = 150;

	$width = imagesx($image);
	$height = imagesy($image);

	$original_aspect = $width / $height;
	$thumb_aspect = $thumb_width / $thumb_height;

	if ( $original_aspect >= $thumb_aspect )
	{
	   // If image is wider than thumbnail (in aspect ratio sense)
	   $new_height = $thumb_height;
	   $new_width = $width / ($height / $thumb_height);
	}
	else
	{
	   // If the thumbnail is wider than the image
	   $new_width = $thumb_width;
	   $new_height = $height / ($width / $thumb_width);
	}

	$thumb = imagecreatetruecolor( $thumb_width, $thumb_height );

	// Resize and crop
	imagecopyresampled($thumb,
	                   $image,
	                   0 - ($new_width - $thumb_width) / 2, // Center the image horizontally
	                   0 - ($new_height - $thumb_height) / 2, // Center the image vertically
	                   0, 0,
	                   $new_width, $new_height,
	                   $width, $height);
	

	header('Content-Type: image/jpeg');
	imagejpeg($thumb);

?>

untuk demonya silahkan di coba di sini

sumber