How to fix error: 504 Gateway Time-out on Nginx
Sometimes, you get the error: 504 Gateway Time-out on Nginx like this figure, how to fix it. This is simple. You follow 2 below steps:…
Month: November 2016
How to create OAuth client ID and client secret for Google APIs
Step 1: log into your Google account then go to the website: https://console.developers.google.com/projectselector/apis/credentials Step 2: Click on the blue button “Create a project”. Step 3:…
Edge detection with PHP
We do some example with this image : http://static.asiawebdirect.com/m/bangkok/portals/vietnam/homepage/hanoi/pagePropertiesImage/hanoi-guide.jpg Method 1: Online demo: Method 2: Use imagefilter: Online demo: Method 3: Online demo: Method 4:…
How to create transparent image with PHP
Method 1: use imagecolorallocatealpha and imagesavealpha Online demo: Method 2: use imagecolortransparent Online demo:
PHP: how to get content of many websites in the same time
The solution is CURL, this is powerful tool to do it. Here’s the plain example, you can know how to get content of many websites…
How to change Mysql root password
Step 1: Result: Step 2: As of MySQL 5.7.6, use ALTER USER: Before 5.7.6, use SET PASSWORD: Note: you must use strong password like: Tutorialspots*123456…
How to know the default root password of MYSQL 5.7
After the installation MySQL-community-server 5.7 on linux, you will need to find the default root password. How to know it? You can find the password…
How to install MYSQL on Centos
Step 1: download RMP file, for Centos 6.x 64bits, you can use file: http://repo.mysql.com/yum/mysql-5.7-community/el/6/x86_64/mysql57-community-release-el6-7.noarch.rpm Depend on version of CentOS, you can find your file at…