Check if a string starts with a specific word in PHP with strpos(): $string = "Hello World!"; $findme = "Hello"; if(strpos($string, $findme) !== false && strpos($string, $findme) === 0) { echo "String found at pos 0"; } else { echo "String not found at pos 0"; }$string = "Hello World!"; $findme = "Hello"; […]
You can use “timeout” command to run a program and auto-kill it after N seconds: timeout –signal=KILL 3 whois google.cdtimeout –signal=KILL 3 whois google.cd The above command will auto-kill whois if it runs for more than 3 seconds. Here is an example output in a Debian server: root@server:~# timeout –signal=KILL 3 whois google.cd Killedroot@server:~# timeout […]
If you get the following error on Microsoft Partner Center: Unable to extract and upload PackageInfo.xmlUnable to extract and upload PackageInfo.xml You just need to repackage the HLKX file to solve the issue. -Rename the current .hckx/hlkx file to .zip -Extract to a folder -Open the folder -Select all items, then right-click and select Send […]
A robots.txt example to block bad bots from crawling your website: User-agent: * Allow: / User-agent: CuteStat Disallow: / User-agent: AhrefsBot Disallow: / User-agent: SemrushBot Disallow: / User-agent: GrapeshotCrawler Disallow: / User-agent: WebsiteOutlook Disallow: / User-agent: MJ12bot Disallow: /User-agent: * Allow: / User-agent: CuteStat Disallow: / User-agent: AhrefsBot Disallow: […]
On 18 March 2019 Ondřej announced that he changed the signing key: https://www.patreon.com/posts/dpa-new-signing-25451165 I was informed that the current DPA signing key DF3D585DB8F0EB658690A554AC0E47584A7A714D was present on the server maintained by an other user of the repositories that got compromised. I do not believe that the users of the packages.sury.org repositories are at any risk because […]
Simple PHP function to check if a XML string is valid: function isValidXML($xml) { libxml_use_internal_errors(true); $doc = new DOMDocument(‘1.0’, ‘utf-8’); $doc->loadXML($xml); $errors = libxml_get_errors(); libxml_clear_errors(); if(empty($errors)){ return array("valid" => true); } $error = $errors[0]; if($error->level < 3){ return array("valid" => true); } $explodedxml = explode("r", $xml); $badxml = […]
To securely save passwords in your database you should use password_hash()! When the user registers, you hash the password and then save it to the database: // Create the hashed password from the user submitted password // Notice that we hash() the password using sha256 before creating the hashed password $hashed_password = password_hash(hash("sha256", trim($_POST["password"])), […]
You can redirect 404 errors to homepage with Nginx. To do so, just add this inside server {}: # Redirect 404 errors to homepage error_page 404 = @myownredirect; # My custom 302 redirect to homepage location @myownredirect { return 302 /; }# Redirect 404 errors to homepage error_page 404 = @myownredirect; # My custom 302 […]
Simple bash script to dump a MySQL table into a CSV file: mysql dbname -u’user’ -p’password’ <<QUERY_INPUT SELECT field1, field2, field3, field4 FROM table_name INTO OUTFILE ‘/path/file.csv’ FIELDS ENCLOSED BY ‘"’ TERMINATED BY ‘,’ ESCAPED BY ‘"’ LINES TERMINATED BY ‘\r\n’; QUERY_INPUTmysql dbname -u’user’ -p’password’ <<QUERY_INPUT SELECT field1, field2, field3, field4 FROM table_name INTO OUTFILE […]
CuteStat shows traffic statistics, but it is bad for your website! It steals your page title and thus also your position on Google searches! To block CuteStat from crawling your website, add this on robots.txt: User-agent: * Allow: / User-agent: CuteStat Disallow: /User-agent: * Allow: / User-agent: CuteStat Disallow: / In case your website […]