89 lines
2.6 KiB
PHP
89 lines
2.6 KiB
PHP
<?php
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namespace App\Traits;
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use Illuminate\Support\Str;
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trait CompressesImages
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{
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/**
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* Compress and store image without reducing its resolution.
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*
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* @param \Illuminate\Http\UploadedFile $file
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* @param string $folder
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* @param int $quality
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* @return string|null Path to the stored file relative to public disk, or null on failure
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*/
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protected function compressAndStoreImage($file, string $folder, int $quality = 80): ?string
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{
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if (!function_exists('imagecreatefromjpeg')) {
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return null;
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}
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$mime = $file->getMimeType();
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$sourcePath = $file->getRealPath();
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if (!$sourcePath) {
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return null;
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}
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// Create image resource based on mime type
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switch ($mime) {
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case 'image/jpeg':
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case 'image/jpg':
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$image = @imagecreatefromjpeg($sourcePath);
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break;
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case 'image/png':
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$image = @imagecreatefrompng($sourcePath);
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break;
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case 'image/webp':
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if (function_exists('imagecreatefromwebp')) {
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$image = @imagecreatefromwebp($sourcePath);
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} else {
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return null;
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}
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break;
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default:
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return null;
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}
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if (!$image) {
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return null;
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}
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// We do NOT resize the image to keep the original resolution!
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// We only compress using GD's quality settings.
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$width = imagesx($image);
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$height = imagesy($image);
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// Create a new true color image to copy the source image onto.
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// This ensures transparency is converted to a clean white background rather than black.
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$outputImage = imagecreatetruecolor($width, $height);
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// Setup transparency preservation / background color for PNG/WebP conversion
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$white = imagecolorallocate($outputImage, 255, 255, 255);
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imagefill($outputImage, 0, 0, $white);
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imagecopy($outputImage, $image, 0, 0, 0, 0, $width, $height);
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$filename = $folder . '/' . Str::uuid() . '.jpg';
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$fullPath = storage_path('app/public/' . $filename);
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// Ensure target directory exists
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$dir = dirname($fullPath);
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if (!is_dir($dir)) {
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mkdir($dir, 0755, true);
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}
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// Compress and save as JPEG to reduce file size significantly
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$saved = imagejpeg($outputImage, $fullPath, $quality);
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// Clean up resources
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imagedestroy($image);
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imagedestroy($outputImage);
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return $saved ? $filename : null;
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}
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}
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