实例化时的类成员访问 [英] Class Member Access on Instantiation

问题描述

在PHP 5.4中，我相信这样是有效的：

In PHP 5.4, I believe something like this is valid:

echo ( new DateTime( '2014-04-05 10:36am' ))->format( 'Y-m-d g:ia' );

在PHP 5.3上，我目前正在执行以下操作：

On PHP 5.3, I currently do something like this:

$date = new DateTime( '2014-04-05 10:36am' );
echo $date->format( 'Y-m-d g:ia' );

在PHP 5.3中将这两行合并为一行的任何方法（我并不是说通过连接线）？还是我必须升级到> = 5.4才能拥有该选项？

Any way to combine those two lines into a single line in PHP 5.3 (and I don't mean by concatenating the lines)? Or will I have to upgrade to >=5.4 to have that option?

推荐答案

我将拥有升级到> = 5.4才能拥有该选项？

Will I have to upgrade to >=5.4 to have that option?

是。。您需要升级到PHP 5.4做到这一点。

Yes. You need to upgrade to PHP 5.4 to do that.

那是 新功能 实际上是在PHP 5.4上引入的。.
实例化时的类成员访问已添加，例如（新Foo）-> bar（）。

如果您尝试在PHP版本低于 5.4 ，您将遇到此错误。

If you try doing that on PHP versions less than 5.4 , you will run into this error.

解析错误：语法错误，T_OBJECT_OPERATOR意外，期望为'， '
或';'

Parse error: syntax error, unexpected T_OBJECT_OPERATOR, expecting ',' or ';'

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