Online PHP editor | perf for 74VVU

<?php declare (strict_types = 1); // change to if(0) to allow fpm/apache/etc modes.. if (1) { if (php_sapi_name() !== 'cli') { die("for security reasons, only cli mode is allowed."); } } init(); $save_path = ''; // will be set by get_url() $url = get_url(); $ch = curl_init(); curl_setopt_array($ch, array( CURLOPT_ENCODING => '', CURLOPT_USERAGENT => '4chan_backuper_php; libcurl/' . (curl_version()['version']) . ' php/' . PHP_VERSION, CURLOPT_RETURNTRANSFER => 1, CURLOPT_FOLLOWLOCATION => 1, CURLOPT_AUTOREFERER => 1, )); $html = fetch($url); m200(); $new_domd = my_dom_loader($html); $new_xp = new DOMXPath($new_domd); if (!file_exists($save_path . "index.html")) { //var_dump(base64_encode($new_domd->saveHTML())); $clone = my_dom_loader($new_domd->saveHTML()); $clone_xp = new DOMXPath($clone); $should_be_removed = (int)($clone_xp->query("//div[@class='thread']")->item(0)->childNodes->length); $removed = 0; foreach ($clone_xp->query("//div[@class='thread']")->item(0)->childNodes as $child) { ++$removed; $child->parentNode->removeChild($child); } if ($removed !== $should_be_removed) { throw new \LogicException("removed: {$removed} - should be removed: {$should_be_removed}"); } file_put_contents($save_path . "index.html", $clone->saveHTML(), LOCK_EX); unset($clone, $clone_xp, $child); } $old_domd = my_dom_loader(file_get_contents($save_path . "index.html")); $old_xp = new DOMXPath($old_domd); $old_thread = $old_xp->query("//div[@class='thread']")->item(0); while (true) { $new_posts = 0; $new_images = 0; foreach ($new_xp->query("//div[@class='thread']//div[contains(@class,'postContainer') and @id]") as $post) { $id = $post->getAttribute("id"); assert(!empty($id)); if ($old_xp->query('//div[@id=' . xpath_quote($id) . ']')->length > 0) { //already processed this post. continue; } $old_thread->appendChild(($post = $old_domd->importNode($post, true))); ++$new_posts; $img = $post->getElementsByTagName("img"); if ($img->length < 1) { continue; } $img = $img->item(0); $a = $old_xp->query("//a[contains(@class,'fileThumb')]", $post); if ($a->length < 1) { continue; } $a = $a->item(0); $full_url = $a->getAttribute("href"); $full_bname = basename($full_url); if (empty($full_url) || empty($full_bname)) { continue; } $thumb_url = $img->getAttribute("src"); $thumb_bname = basename($full_url); if (empty($thumb_url) || empty($thumb_bname)) { continue; } ++$new_images; $thumb_binary = fetch($thumb_url); m200(); $full_binary = fetch($full_url); m200(); file_put_contents($save_path . "images" . DIRECTORY_SEPARATOR . "thumbnails" . DIRECTORY_SEPARATOR . $thumb_bname, $thumb_binary); file_put_contents($save_path . "images" . DIRECTORY_SEPARATOR . $full_bname, $full_binary); $a->setAttribute("href", "images/" . $full_bname); $img->setAttribute("src", "images/thumbnails/" . $thumb_bname); } if ($new_posts > 0 || $new_images > 0) { //file_put_contents($save_path . "index.html", $old_domd->saveHTML(), LOCK_EX); } echo "new posts: {$new_posts} - new images: {$new_images}\n"; $sleeptime = 10; echo "sleeping {$sleeptime} seconds and refetching.."; sleep($sleeptime); echo ".\nfetching again.\n"; $html = fetch($url); m200(); $new_domd = my_dom_loader($html); $new_xp = new DOMXPath($new_domd); } function my_dom_loader(string $html): \DOMDocument { $html = trim($html); if (empty($html)) { //.... } if (false === stripos($html, '<?xml encoding=')) { $html = '<?xml encoding="UTF-8">' . $html; } $ret = @DOMDocument::loadHTML($html, LIBXML_NOBLANKS | LIBXML_NONET | LIBXML_BIGLINES); if (!$ret) { throw new \Exception("failed to create DOMDocument from input html!"); } return $ret; } // "must be http 200" function m200(): void { global $ch; $code = curl_getinfo($ch, CURLINFO_HTTP_CODE); if ($code !== 200) { $url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL); throw new \RuntimException("expected http \"200 OK\" but got {$code} - url: \"{$url}\""); } } function fetch(string $url, int &$code = null): string { if (substr($url, 0, 2) === "//") { $url = "http:" . $url; } echo "fetching \"{$url}\".."; global $ch; curl_setopt_array($ch, array( CURLOPT_URL => $url, )); $data = curl_exec($ch); if (curl_errno($ch) !== CURLE_OK) { throw new \RuntimeException("curl error: " . curl_errno($ch) . ": " . curl_error($ch)); } $code = curl_getinfo($ch, CURLINFO_HTTP_CODE); echo "http code \"{$code}\"."; return $data; } function get_url(): string { global $argv; global $save_path; if (isset($_REQUEST['url'])) { echo "got url from \$_REQUEST\n"; $url = (string)$_REQUEST['url']; } elseif (!empty($argv) && count($argv) > 1) { echo "got url from \$argv\n"; $url = $argv; unset($url[0]); $url = implode("", $url); } elseif (php_sapi_name() === 'cli') { //interactive mode stream_set_blocking(STDIN, true); echo "enter 4chan url: "; $url = fgets(STDIN); } else { throw new \RuntimeException("url not specified! (and not running interactively)"); } $url = trim($url); if (!preg_match('/^(?:https?\:\/\/)?boards\.4chan\.org\/(?<board_name>.*?)\/.*?\/(?<thread_id>\d+)/', $url, $matches)) { throw new \RuntimeException("url \"{$url}\" does not look like a 4chan board url! - they are supposed to look something like http://boards.4chan.org/hc/thread/1501699#p1508333"); } $board_name = $matches['board_name']; $thread_id = $matches['thread_id']; $url = "http://boards.4chan.org/{$board_name}/thread/{$thread_id}"; echo "url parsed: \"{$url}\"\n"; $save_path = getcwd() . DIRECTORY_SEPARATOR . "backups"; mymkdir($save_path); $save_path .= DIRECTORY_SEPARATOR . $board_name; mymkdir($save_path); $save_path .= DIRECTORY_SEPARATOR . $thread_id; mymkdir($save_path); $save_path .= DIRECTORY_SEPARATOR; mymkdir($save_path . "images"); mymkdir($save_path . "images" . DIRECTORY_SEPARATOR . "thumbnails"); return $url; } function mymkdir(string $path): void { if (is_dir($path)) { return; } echo "making folder \"{$path}\".."; if (!mkdir($path)) { throw new \RuntimeException("ERROR: could not make folder!"); } echo ". done.\n"; } function init() { static $firstrun = true; if ($firstrun !== true) { return; } $firstrun = false; error_reporting(E_ALL); set_error_handler("hhb_exception_error_handler"); // ini_set("log_errors",'On'); // ini_set("display_errors",'On'); // ini_set("log_errors_max_len",'0'); // ini_set("error_prepend_string",'<error>'); // ini_set("error_append_string",'</error>'.PHP_EOL); // ini_set("error_log",__DIR__.DIRECTORY_SEPARATOR.'error_log.php.txt'); assert_options(ASSERT_ACTIVE, 1); assert_options(ASSERT_WARNING, 0); assert_options(ASSERT_QUIET_EVAL, 1); assert_options(ASSERT_CALLBACK, 'hhb_assert_handler'); } function hhb_exception_error_handler($errno, $errstr, $errfile, $errline) { if (!(error_reporting() & $errno)) { // This error code is not included in error_reporting return; } throw new ErrorException($errstr, 0, $errno, $errfile, $errline); } function hhb_assert_handler($file, $line, $code, $desc = null) { $errstr = 'Assertion failed at ' . $file . ':' . $line . ' ' . $desc . ' code: ' . $code; throw new ErrorException($errstr, 0, 1, $file, $line); } //based on https://stackoverflow.com/a/1352556/1067003 function xpath_quote(string $value): string { if (false === strpos($value, '"')) { return '"' . $value . '"'; } if (false === strpos($value, '\'')) { return '\'' . $value . '\''; } // if the value contains both single and double quotes, construct an // expression that concatenates all non-double-quote substrings with // the quotes, e.g.: // // concat("'foo'", '"', "bar") $sb = 'concat('; $substrings = explode('"', $value); for ($i = 0; $i < count($substrings); ++$i) { $needComma = ($i > 0); if ($substrings[$i] !== '') { if ($i > 0) { $sb .= ', '; } $sb .= '"' . $substrings[$i] . '"'; $needComma = true; } if ($i < (count($substrings) - 1)) { if ($needComma) { $sb .= ', '; } $sb .= "'\"'"; } } $sb .= ')'; return $sb; }

Version	System time (s)	User time (s)	Memory (MiB)
8.3.6	0.004	0.011	18.55
8.3.5	0.009	0.009	19.16
8.3.4	0.006	0.010	19.06
8.3.3	0.000	0.018	18.79
8.3.2	0.006	0.003	21.10
8.3.1	0.006	0.003	21.90
8.3.0	0.008	0.000	22.04
8.2.18	0.009	0.013	16.73
8.2.17	0.015	0.006	22.96
8.2.16	0.009	0.006	20.47
8.2.15	0.003	0.005	24.18
8.2.14	0.004	0.004	24.66
8.2.13	0.009	0.000	17.97
8.2.12	0.008	0.000	26.35
8.2.11	0.003	0.013	22.14
8.2.10	0.010	0.006	18.03
8.2.9	0.004	0.004	18.00
8.2.8	0.004	0.004	17.97
8.2.7	0.003	0.006	18.16
8.2.6	0.004	0.004	18.16
8.2.5	0.004	0.007	18.10
8.2.4	0.005	0.003	19.59
8.2.3	0.004	0.004	20.80
8.2.2	0.003	0.005	18.34
8.2.1	0.004	0.004	19.66
8.2.0	0.004	0.004	18.29
8.1.28	0.015	0.004	25.92
8.1.27	0.008	0.000	22.18
8.1.26	0.004	0.004	26.35
8.1.25	0.008	0.000	28.09
8.1.24	0.009	0.000	22.48
8.1.23	0.011	0.000	17.95
8.1.22	0.004	0.004	17.91
8.1.21	0.003	0.006	18.77
8.1.20	0.008	0.003	17.60
8.1.19	0.012	0.000	17.22
8.1.18	0.004	0.004	18.10
8.1.17	0.003	0.005	18.83
8.1.16	0.003	0.006	19.05
8.1.15	0.008	0.000	19.10
8.1.14	0.005	0.002	19.09
8.1.13	0.010	0.000	20.30
8.1.12	0.000	0.009	17.52
8.1.11	0.009	0.003	17.59
8.1.10	0.004	0.004	17.54
8.1.9	0.005	0.003	17.60
8.1.8	0.007	0.003	17.62
8.1.7	0.004	0.004	17.55
8.1.6	0.005	0.003	17.74
8.1.5	0.000	0.008	17.59
8.1.4	0.005	0.003	17.57
8.1.3	0.000	0.008	17.70
8.1.2	0.003	0.006	17.73
8.1.1	0.006	0.003	17.60
8.1.0	0.004	0.004	17.67
8.0.30	0.000	0.008	21.70
8.0.29	0.003	0.005	17.00
8.0.28	0.000	0.008	18.46
8.0.27	0.004	0.004	17.48
8.0.26	0.005	0.005	18.47
8.0.25	0.007	0.000	17.18
8.0.24	0.011	0.000	17.14
8.0.23	0.005	0.002	17.08
8.0.22	0.000	0.007	17.12
8.0.21	0.000	0.007	17.02
8.0.20	0.000	0.008	17.23
8.0.19	0.000	0.009	17.09
8.0.18	0.000	0.007	17.07
8.0.17	0.009	0.000	17.06
8.0.16	0.009	0.000	17.11
8.0.15	0.000	0.008	17.05
8.0.14	0.005	0.003	17.11
8.0.13	0.000	0.006	13.52
8.0.12	0.000	0.008	17.09
8.0.11	0.000	0.008	17.08
8.0.10	0.005	0.003	17.04
8.0.9	0.004	0.004	16.95
8.0.8	0.008	0.011	17.04
8.0.7	0.003	0.006	16.97
8.0.6	0.000	0.008	16.95
8.0.5	0.000	0.007	17.14
8.0.3	0.010	0.007	17.37
8.0.2	0.016	0.006	17.27
8.0.1	0.000	0.008	17.24
8.0.0	0.009	0.010	17.07
7.4.33	0.006	0.000	16.71
7.4.32	0.000	0.007	16.78
7.4.30	0.006	0.000	16.53
7.4.29	0.000	0.009	16.57
7.4.28	0.003	0.006	16.52
7.4.27	0.000	0.007	16.80
7.4.26	0.000	0.007	16.80
7.4.25	0.004	0.004	16.64
7.4.24	0.007	0.000	16.81
7.4.23	0.004	0.004	16.75
7.4.22	0.008	0.000	16.85
7.4.21	0.010	0.008	16.76
7.4.20	0.008	0.000	16.84
7.4.16	0.011	0.008	16.71
7.4.14	0.012	0.012	17.86
7.4.13	0.004	0.013	16.82
7.4.12	0.006	0.017	16.72
7.4.11	0.006	0.012	16.71
7.4.10	0.011	0.009	16.88
7.4.9	0.011	0.014	16.66
7.4.8	0.011	0.011	19.39
7.4.7	0.009	0.009	16.80
7.4.6	0.007	0.010	16.69
7.4.5	0.008	0.008	16.63
7.4.4	0.003	0.016	16.89
7.4.0	0.007	0.007	14.98
7.3.33	0.005	0.000	13.45
7.3.32	0.000	0.006	13.55
7.3.31	0.000	0.008	16.62
7.3.30	0.002	0.005	16.59
7.3.29	0.004	0.011	16.63
7.3.28	0.010	0.008	16.58
7.3.26	0.011	0.009	16.73
7.3.24	0.010	0.008	16.73
7.3.23	0.012	0.006	16.62
7.3.21	0.012	0.009	16.83
7.3.20	0.006	0.011	16.53
7.3.19	0.010	0.010	16.59
7.3.18	0.010	0.007	16.64
7.3.17	0.010	0.006	16.68
7.3.16	0.013	0.007	16.66
7.3.4	0.007	0.007	14.96
7.3.3	0.007	0.004	15.02
7.3.2	0.087	0.010	15.23
7.3.1	0.010	0.004	15.18
7.3.0	0.012	0.018	15.02
7.2.33	0.013	0.007	16.79
7.2.32	0.012	0.011	16.96
7.2.31	0.014	0.004	16.98
7.2.30	0.018	0.000	16.90
7.2.29	0.007	0.011	16.82
7.2.17	0.006	0.006	15.34
7.2.16	0.000	0.011	14.98
7.2.15	0.010	0.003	15.24
7.2.14	0.007	0.007	15.13
7.2.13	0.013	0.003	15.26
7.2.12	0.006	0.006	15.18
7.2.11	0.010	0.003	15.48
7.2.10	0.010	0.007	15.11
7.2.9	0.010	0.003	15.39
7.2.8	0.010	0.016	15.12
7.2.7	0.011	0.006	15.05
7.2.6	0.016	0.010	15.31
7.2.5	0.021	0.006	15.13
7.2.4	0.019	0.006	15.35
7.2.3	0.008	0.009	15.50
7.2.2	0.013	0.006	15.25
7.2.1	0.009	0.009	15.41
7.2.0	0.012	0.006	15.29
7.1.28	0.010	0.003	14.16
7.1.27	0.009	0.004	14.11
7.1.26	0.008	0.008	14.09
7.1.25	0.009	0.006	14.05