Php performances test

regex-vs-array.php

<?php

$excludeBotsRegex = '/(googlebot|Googlebot-Mobile|Googlebot-Image|Google favicon|Mediapartners-Google|bingbot|slurp|java|wget|curl|Commons-HttpClient|Python-urllib|libwww|httpunit|nutch|phpcrawl|msnbot|jyxobot|FAST-WebCrawler|FAST Enterprise Crawler|biglotron|teoma|convera|seekbot|gigablast|exabot|ngbot|ia_archiver|GingerCrawler|webmon |httrack|webcrawler|grub.org|UsineNouvelleCrawler|antibot|netresearchserver|speedy|fluffy|bibnum.bnf|findlink|msrbot|panscient|yacybot|AISearchBot|IOI|ips-agent|tagoobot|MJ12bot|dotbot|woriobot|yanga|buzzbot|mlbot|yandexbot|purebot|Linguee Bot|Voyager|CyberPatrol|voilabot|baiduspider|citeseerxbot|spbot|twengabot|postrank|turnitinbot|scribdbot|page2rss|sitebot|linkdex|Adidxbot|blekkobot|ezooms|dotbot|Mail.RU_Bot|discobot|heritrix|findthatfile|europarchive.org|NerdByNature.Bot|sistrix crawler|ahrefsbot|Aboundex|domaincrawler|wbsearchbot|summify|ccbot|edisterbot|seznambot|ec2linkfinder|gslfbot|aihitbot|intelium_bot|facebookexternalhit|yeti|RetrevoPageAnalyzer|lb-spider|sogou|lssbot|careerbot|wotbox|wocbot|ichiro|DuckDuckBot|lssrocketcrawler|drupact|webcompanycrawler|acoonbot|openindexspider|gnam gnam spider|web-archive-net.com.bot|backlinkcrawler|coccoc|integromedb|content crawler spider|toplistbot|seokicks-robot|it2media-domain-crawler|ip-web-crawler.com|siteexplorer.info|elisabot|proximic|changedetection|blexbot|arabot|WeSEE:Search|niki-bot|CrystalSemanticsBot|rogerbot|360Spider|psbot|InterfaxScanBot|Lipperhey SEO Service|CC Metadata Scaper|g00g1e.net|GrapeshotCrawler|urlappendbot|brainobot|fr-crawler|binlar|SimpleCrawler|Livelapbot|Twitterbot|cXensebot|smtbot|bnf.fr_bot|A6-Indexer|ADmantX|Facebot|Twitterbot|OrangeBot|memorybot|AdvBot|MegaIndex|SemanticScholarBot|ltx71|nerdybot|xovibot|BUbiNG|Qwantify|archive.org_bot|Applebot|TweetmemeBot|crawler4j|findxbot|SemrushBot|yoozBot|lipperhey|y!j-asr|Domain Re-Animator Bot|AddThis)/ui';

$excludeBotsArray = [
    'googlebot',
    'Googlebot-Mobile',
    'Googlebot-Image',
    'Google favicon',
    'Mediapartners-Google',
    'bingbot',
    'slurp',
    'java',
    'wget',
    'curl',
    'Commons-HttpClient',
    'Python-urllib',
    'libwww',
    'httpunit',
    'nutch',
    'phpcrawl',
    'msnbot',
    'jyxobot',
    'FAST-WebCrawler',
    'FAST Enterprise Crawler',
    'biglotron',
    'teoma',
    'convera',
    'seekbot',
    'gigablast',
    'exabot',
    'ngbot',
    'ia_archiver',
    'GingerCrawler',
    'webmon ',
    'httrack',
    'webcrawler',
    'grub.org',
    'UsineNouvelleCrawler',
    'antibot',
    'netresearchserver',
    'speedy',
    'fluffy',
    'bibnum.bnf',
    'findlink',
    'msrbot',
    'panscient',
    'yacybot',
    'AISearchBot',
    'IOI',
    'ips-agent',
    'tagoobot',
    'MJ12bot',
    'dotbot',
    'woriobot',
    'yanga',
    'buzzbot',
    'mlbot',
    'yandexbot',
    'purebot',
    'Linguee Bot',
    'Voyager',
    'CyberPatrol',
    'voilabot',
    'baiduspider',
    'citeseerxbot',
    'spbot',
    'twengabot',
    'postrank',
    'turnitinbot',
    'scribdbot',
    'page2rss',
    'sitebot',
    'linkdex',
    'Adidxbot',
    'blekkobot',
    'ezooms',
    'dotbot',
    'Mail.RU_Bot',
    'discobot',
    'heritrix',
    'findthatfile',
    'europarchive.org',
    'NerdByNature.Bot',
    'sistrix crawler',
    'ahrefsbot',
    'Aboundex',
    'domaincrawler',
    'wbsearchbot',
    'summify',
    'ccbot',
    'edisterbot',
    'seznambot',
    'ec2linkfinder',
    'gslfbot',
    'aihitbot',
    'intelium_bot',
    'facebookexternalhit',
    'yeti',
    'RetrevoPageAnalyzer',
    'lb-spider',
    'sogou',
    'lssbot',
    'careerbot',
    'wotbox',
    'wocbot',
    'ichiro',
    'DuckDuckBot',
    'lssrocketcrawler',
    'drupact',
    'webcompanycrawler',
    'acoonbot',
    'openindexspider',
    'gnam gnam spider',
    'web-archive-net.com.bot',
    'backlinkcrawler',
    'coccoc',
    'integromedb',
    'content crawler spider',
    'toplistbot',
    'seokicks-robot',
    'it2media-domain-crawler',
    'ip-web-crawler.com',
    'siteexplorer.info',
    'elisabot',
    'proximic',
    'changedetection',
    'blexbot',
    'arabot',
    'WeSEE:Search',
    'niki-bot',
    'CrystalSemanticsBot',
    'rogerbot',
    '360Spider',
    'psbot',
    'InterfaxScanBot',
    'Lipperhey SEO Service',
    'CC Metadata Scaper',
    'g00g1e.net',
    'GrapeshotCrawler',
    'urlappendbot',
    'brainobot',
    'fr-crawler',
    'binlar',
    'SimpleCrawler',
    'Livelapbot',
    'Twitterbot',
    'cXensebot',
    'smtbot',
    'bnf.fr_bot',
    'A6-Indexer',
    'ADmantX',
    'Facebot',
    'Twitterbot',
    'OrangeBot',
    'memorybot',
    'AdvBot',
    'MegaIndex',
    'SemanticScholarBot',
    'ltx71',
    'nerdybot',
    'xovibot',
    'BUbiNG',
    'Qwantify',
    'archive.org_bot',
    'Applebot',
    'TweetmemeBot',
    'crawler4j',
    'findxbot',
    'SemrushBot',
    'yoozBot',
    'lipperhey',
    'y!j-asr',
    'Domain Re-Animator Bot',
    'AddThis',
];

$user_agent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36';

function rutime($ru, $rus, $index) {
    return ($ru["ru_$index.tv_sec"]*1000 + intval($ru["ru_$index.tv_usec"]/1000))
    -  ($rus["ru_$index.tv_sec"]*1000 + intval($rus["ru_$index.tv_usec"]/1000));
}

// regex
echo "------------------------------\n";
echo "REGEX ------------------------\n";
echo "------------------------------\n";

$rustart = getrusage();

for ($i=0 ; $i<100000 ; $i++) {
    if (preg_match($excludeBotsRegex, $user_agent, $matches)) {

    }
}

$ru = getrusage();
echo "This process used " . rutime($ru, $rustart, "utime") .
" ms for its computations\n";
echo "It spent " . rutime($ru, $rustart, "stime") .
" ms in system calls\n";

// array
echo "------------------------------\n";
echo "ARRAY ------------------------\n";
echo "------------------------------\n";

$rustart = getrusage();

for ($i=0 ; $i<100000 ; $i++) {
    foreach ($excludeBotsArray as $user_agent) {
        if (preg_match('#' . $user_agent . '#ui', $user_agent, $matches)) {
            continue;
        }
    }
}

$ru = getrusage();
echo "This process used " . rutime($ru, $rustart, "utime") .
" ms for its computations\n";
echo "It spent " . rutime($ru, $rustart, "stime") .
" ms in system calls\n";