php – PSR-2是否需要垂直对齐？

这两者之间允许什么：

$value = 'value';
$user = 'John';
$timestamp = 1480927909;
$day = date('Y-m-d',$timestamp);

要么

$value     = 'value';
$user      = 'John';
$timestamp = 1480927909;
$day       = date('Y-m-d',$timestamp);

PSR-2没有针对这种线间对齐的具体规则：

从PSR-2 Conclusion：

There are many elements of style and practice intentionally omitted by this guide. These include but are not limited to:

• Declaration of global variables and global constants
• Declaration of functions
• Operators and assignment
• Inter-line alignment
• Comments and documentation blocks
• Class name prefixes and suffixes
• Best practices

Future recommendations MAY revise and extend this guide to address those or other elements of style and practice.

对于它的价值,PHP-fig Group的行间对齐是discussed for PSR-1,但是从最终版本中删除了：

The way-back original long-form PSR-1 covered inter-line alignment,globals,ternaries,assignment,and lots of other things. Those ended up getting removed for varIoUs reasons; their epitaph is at the conclusion of PSR-2.