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

Links¶

• https://aloneonahill.com/blog/if-php-were-british/