التعامل مع الملفات في PHP

<?php
$file = fopen('example.txt', 'r'); // فتح الملف للقراءة
?>

<?php
$file = fopen('example.txt', 'r');
while(!feof($file)) {
    echo fgets($file); // قراءة سطر واحد في كل مرة
}
fclose($file);
?>

<?php
$file = fopen('example.txt', 'w');
fwrite($file, "Hello, World!\n");
fclose($file);
?>

<?php
unlink('example.txt');
?>

<form action="upload.php" method="post" enctype="multipart/form-data">
    <input type="file" name="fileToUpload">
    <input type="submit" value="Upload File">
</form>

<?php
$targetDir = "uploads/";
$targetFile = $targetDir . basename($_FILES['fileToUpload']['name']);
if (move_uploaded_file($_FILES['fileToUpload']['tmp_name'], $targetFile)) {
    echo "The file " . htmlspecialchars(basename($_FILES['fileToUpload']['name'])) . " has been uploaded.";
} else {
    echo "Sorry, there was an error uploading your file.";
}
?>

<?php
$fileType = strtolower(pathinfo($targetFile, PATHINFO_EXTENSION));
if ($fileType != "jpg" && $fileType != "png" && $fileType != "jpeg") {
    echo "Sorry, only JPG, JPEG, & PNG files are allowed.";
}
if ($_FILES['fileToUpload']['size'] > 500000) {
    echo "Sorry, your file is too large.";
}
?>

<?php
header('Content-Type: image/png');
$image = imagecreatetruecolor(200, 200);
$backgroundColor = imagecolorallocate($image, 0, 102, 204);
imagefill($image, 0, 0, $backgroundColor);
imagepng($image);
imagedestroy($image);
?>

<?php
$image = imagecreatefromjpeg('example.jpg');
$textColor = imagecolorallocate($image, 255, 255, 255);
imagestring($image, 5, 10, 10, 'Hello, World!', $textColor);
header('Content-Type: image/jpeg');
imagejpeg($image);
imagedestroy($image);
?>

<?php
$image = imagecreatefromjpeg('example.jpg');
header('Content-Type: image/jpeg');
imagejpeg($image, null, 50); // ضغط الصورة بنسبة 50%
imagedestroy($image);
?>