Category: Programming – Page 2

HTTP 301 Redirect using PHP

Posted on February 8, 2020 by ServerOk

You can use PHP header() function to do redirect. To do 301 redirect, use

header('Location: https://new-url/', true, 301);
exit;

1 2	header('Location: https://new-url/', true, 301); exit;

For 302 redirect, use

header('Location: https://new-url/');
exit;

1 2	header('Location: https://new-url/'); exit;

If you need to redirect a site to new site keeping same URL structure, you can use

$newUrl = "https://NEW-URL-HERE" . $_SERVER['REQUEST_URI'];
header("HTTP/1.1 301 Moved Permanently");
Header("Location: $newUrl");
exit;

$newUrl = "https://NEW-URL-HERE" . $_SERVER['REQUEST_URI'];

header("HTTP/1.1 301 Moved Permanently");

Header("Location: $newUrl");

exit;

[…]

Redirect a site to HTTPS using PHP

Posted on July 18, 2019 (October 23, 2019) by ServerOk

This PHP script will redirect web site visitor to HTTPS (SSL) url. You can add this in your index.php of the web site

if (empty($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on" ) {
    header("HTTP/1.1 301 Moved Permanently");
    $newUrl = "https://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
    Header("Location: $newUrl");
    exit;
}

if (empty($_SERVER['HTTPS']) || $_SERVER['HTTPS'] != "on" ) {

header("HTTP/1.1 301 Moved Permanently");

$newUrl = "https://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];

Header("Location: $newUrl");

exit;

}

Move a site to new URL using PHP

$newUrl = "https://NEW-URL-HERE" . $_SERVER['REQUEST_URI'];
header("HTTP/1.1 301 Moved Permanently");
Header("Location: $newUrl");
exit;

$newUrl = "https://NEW-URL-HERE" . $_SERVER['REQUEST_URI'];

header("HTTP/1.1 301 Moved Permanently");

Header("Location: $newUrl");

exit;

You can also use Apache mod_rewrite .htacess to do the redirection. […]

Gem – Package Manager for Ruby

Posted on February 26, 2019 (February 28, 2019) by ServerOk

gem is package manager for Ruby. To get list of all install packages, run

gem list

gem list

To install a package, run

gem install PACKAGE_NAME

1	gem install PACKAGE_NAME

To uninstall a package, run

gem uninstall PACKAGE_NAME

1	gem uninstall PACKAGE_NAME

To search for a package, run

gem search PACKAGE_NAME

1	gem search PACKAGE_NAME

gem install error libxslt is missing See Ruby […]

golang

Posted on January 5, 2019 (January 5, 2019) by ServerOk

Installing golang on Ubuntu 18.04 GoLang Hello World […]

Installing golang on Ubuntu 18.04

Posted on January 5, 2019 by ServerOk

To install golang on Ubuntu 18.04, run

apt install golang -y

1	apt install golang -y

[…]

PHP running system commands with exec

Posted on December 31, 2018 by ServerOk

To execure a system command on a server, use PHP exec function. For example

<?php

@exec("nslookup yahoo.com 2>&1", $result);
echo "<pre>";
print_r($result);

<?php

@exec("nslookup yahoo.com 2>&1", $result);

echo "<pre>";

print_r($result);

See php […]

Ruby

Posted on December 27, 2018 (October 11, 2020) by ServerOk

Install ruby from source Install rvm (ruby version manager) Nginx Rails Origin header didn’t match request.base_url Gem Package Manager Gem – Package Manager for Ruby Upgrade ruby gem […]

Python

Posted on August 31, 2018 (June 1, 2021) by ServerOk

Install Python 3.8 on CentOS 6 from source Install python 3.6 on CentOS 7 Install Python 2.7 on CentOS 6 pip Install jupyter notebook virtualenv Running Web Server with python SimpleHTTPServer Hosting Python Application in Production gunicorn Python Errors error: Python.h: No such file or directory pip install mysqlclient mysql_config: not found ERROR: Failed building […]

Magento 1.9 store login not working in Chrome

Posted on April 18, 2018 (April 18, 2018) by ServerOk

On a site running Magento 1.9, user login is not working on Google Chrome. The problem is due to cookie setting in Magento. Login to Magento Admin, go to Admin > System > configuration > web > Session and Cookie Management Put your domain name in “Cookie Domain” text box and click Save Config. Magento […]