huzaifaarain

Common FastCGI Errors involving PHP-FPM

1. 504 Gateway Timeout

   upstream timed out (110: Connection timed out) while reading response header from upstream
   

Means NGINX timed out reading the HTTP response header from upstream. This

huzaifaarain

RUN apt update
RUN apt upgrade -y
RUN apt install -y apt-utils
RUN a2enmod rewrite
RUN apt install -y libmcrypt-dev
RUN apt install -y libicu-dev
RUN docker-php-ext-install -j$(nproc) intl
RUN apt-get install -y libfreetype6-dev libjpeg62-turbo-dev libpng12-dev
RUN docker-php-ext-configure gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ 

huzaifaarain

<?php

use PhpCsFixer\Config;
use PhpCsFixer\Finder;

$rules = [
    'array_indentation' => true,
    'array_syntax' => ['syntax' => 'short'],
    'binary_operator_spaces' => [
        'default' => 'single_space',

huzaifaarain

<?php

use PhpCsFixer\Config;
use PhpCsFixer\Finder;

$rules = [
    'array_syntax' => ['syntax' => 'short'],
    'binary_operator_spaces' => [
        'default' => 'single_space',
        'operators' => ['=>' => null],

huzaifaarain

<?php

// This can be found in the Symfony\Component\HttpFoundation\Response class

const HTTP_CONTINUE = 100;
const HTTP_SWITCHING_PROTOCOLS = 101;
const HTTP_PROCESSING = 102;            // RFC2518
const HTTP_OK = 200;
const HTTP_CREATED = 201;
const HTTP_ACCEPTED = 202;

huzaifaarain

Webserver as owner (the way most people do it, and the Laravel doc's way):

assuming www-data (it could be something else) is your webserver user.

sudo chown -R www-data:www-data /path/to/your/laravel/root/directory

if you do that, the webserver owns all the files, and is also the group, and you will have some problems uploading files or working with files via FTP, because your FTP client will be logged in as you, not your webserver, so add your user to the webserver user group:

huzaifaarain

<IfModule mod_rewrite.c> 
    RewriteEngine On

    RewriteCond %{REQUEST_FILENAME} -d [OR]
    RewriteCond %{REQUEST_FILENAME} -f
    RewriteRule ^ ^$1 [N]
    
    RewriteCond %{REQUEST_URI} (\.\w+$) [NC]
    RewriteRule ^(.*)$ public/$1 
    

huzaifaarain

How to create an HTTPS certificate for localhost domains

This focuses on generating the certificates for loading local virtual hosts hosted on your computer, for development only.

Do not use self-signed certificates in production ! For online certificates, use Let's Encrypt instead (tutorial).

huzaifaarain

SET @oldUrl = "Existing URL" COLLATE utf8mb4_unicode_520_ci;
SET @newUrl = "New URL" COLLATE utf8mb4_unicode_520_ci;
UPDATE wp_options SET option_value = replace(option_value, @oldUrl, @newUrl) WHERE option_name = 'home' OR option_name = 'siteurl';

UPDATE wp_posts SET post_content = replace(post_content, @oldUrl, @newUrl);

UPDATE wp_postmeta SET meta_value = replace(meta_value,@oldUrl, @newUrl);

UPDATE wp_usermeta SET meta_value = replace(meta_value, @oldUrl, @newUrl);

huzaifaarain

Chapter 7: Command Line Operations

Viewing Files

cat Used for viewing files that are not very long; it does not provide any scroll-back.

tac Used to look at a file backwards, starting with the last line.

less Used to view larger files because it is a paging program. It pauses at each screen full of text, provides scroll-back capabilities, and lets you search and navigate within the file. Note: Use / to search for a pattern in the forward direction and ? for a pattern in the backward direction. An older program named more is still used, but has fewer capabilities: "less is more".