burakerdem · March 23, 2019 16:55 · Mar 23, 2019
diff --git a/progress.php b/progress.php
@@ -0,0 +1,38 @@
+<?php
+file_put_contents('progress.txt', '');
+
+if (is_file('progress.txt')) {
+    unlink('progress.txt');
+}
+
+if (is_file('testfile.iso')) {
+    unlink('testfile.iso');
+}
+
+$targetFile = fopen('testfile.iso', 'w');
+
+$ch = curl_init('https://speed.hetzner.de/100MB.bin');
+curl_setopt($ch, CURLOPT_PROGRESSFUNCTION, 'progressCallback');
+curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+curl_setopt($ch, CURLOPT_NOPROGRESS, false);
+curl_setopt($ch, CURLOPT_FILE, $targetFile);
+curl_exec($ch);
+fclose($targetFile);
+
+function progressCallback ($resource, $download_size, $downloaded_size, $upload_size, $uploaded_size) {
+    static $previousProgress = 0;
+
+    if ($download_size == 0) {
+        $progress = 0;
+    } else {
+        $progress = round($downloaded_size * 100 / $download_size);
+    }
+
+    if ($progress > $previousProgress) {
+        $previousProgress = $progress;
+        // $fp = fopen('progress.txt', 'a');
+        $fp = fopen('progress.txt', 'w');
+        fputs($fp, "$progress\n");
+        fclose($fp);
+    }
+}