php
The PHP scripting language.
Code Guidelines
- The PEAR code guidelines are pretty good - https://pear.php.net/manual/en/standards.php
- Even better coding standards - https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-1-basic-coding-standard.md
Examples
Convert date formats
This converts mysql time to epoch unix timestamp and back $timestamp = strtotime($mysqltime); echo date("Y-m-d H:i:s", $timestamp);
Run code from CLI
php -r "phpinfo();"
Show php CLI env vars
This shows the location of the ini file used for CLI. php -i
Enable Errors
Set display_errors = On in php.ini, or in a php file add:
error_reporting(E_ALL);
ini_set('display_errors', 1);
Disable timeout
set_time_limit(0);
ini_set ('max_execution_time', 0);
Random numbers
rand() ; # random int
rand(1,10) ; # random int between 1 and 10
rand(100,1000)/100 ; # workaround for generating floats with 2 decimal points