Table of Contents

1. General
2. Namespace
3. Others

General

Reserved variables in Mecha should match to ^[a-z]+(?:_[a-z\d]+)*$ pattern:

$site

User variable style should be prefixed by a _ to prevent collision with the reserved variables:

$_site

Note: If for a reason, the reserved variables are overwritten, you can always restore the original variable value by accessing the global variables stored in $GLOBALS:

$site = null; // :(
echo $site->title; // :'(

$site = $GLOBALS['site']; // :)
echo $site->title; // :*

Namespace

Another way to safely writing variables is by namespace-ing your variable name:

$my_site

Others

Common variable names using a letter with their meaning:

• $a → array container
• $b → base
• $c → class, configuration
• $d → directory
• $e → evaluate
• $f → file
• $g → results of the g and glob function
• $h → hint
• $i → increment, integer, number
• $j → length of the $a (used in for loop)
• $k → array key
• $l → ?
• $m → matches
• $n → name
• $o → array container, output container
• $p → page, path
• $q → query
• $r → return value
• $s → placeholder, universal variable
• $t → title, text
• $u → URL, URL part
• $v → array value
• $w → word
• $x → test, file extension
• $y → ?
• $z → ?

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