<?php
// Example: Effective logging in PHP image manipulation
// Function for image upload with error logging
function uploadImage($file) {
$logFile = 'error_log.txt'; // Log file path
// Check if the file is uploaded
if (!isset($file['tmp_name']) || !file_exists($file['tmp_name'])) {
file_put_contents($logFile, "Error: No file uploaded.\n", FILE_APPEND);
return false;
}
// Image processing
$image = imagecreatefromjpeg($file['tmp_name']);
if (!$image) {
file_put_contents($logFile, "Error: Invalid image file.\n", FILE_APPEND);
return false;
}
// Continue with image manipulation, or save the image
// For demo, we'll save the image
$outputPath = 'uploads/' . basename($file['name']);
if (!imagejpeg($image, $outputPath)) {
file_put_contents($logFile, "Error: Failed to save image.\n", FILE_APPEND);
return false;
}
imagedestroy($image);
return true;
}
// Usage example
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
uploadImage($_FILES['image']);
}
?>
How do I avoid rehashing overhead with std::set in multithreaded code?
How do I find elements with custom comparators with std::set for embedded targets?
How do I erase elements while iterating with std::set for embedded targets?
How do I provide stable iteration order with std::unordered_map for large datasets?
How do I reserve capacity ahead of time with std::unordered_map for large datasets?
How do I erase elements while iterating with std::unordered_map in multithreaded code?
How do I provide stable iteration order with std::map for embedded targets?
How do I provide stable iteration order with std::map in multithreaded code?
How do I avoid rehashing overhead with std::map in performance-sensitive code?
How do I merge two containers efficiently with std::map for embedded targets?