为什么我在这里得到“意外令牌＆”？

Question

My PHP syntax highlighter / intellisense is telling me that the & of &$cases in the line

$thisTable = $work_type === WorkTypes::Study ? &$cases : &$projs);

is an unexpected token. What I'm trying to do is create an alias for either my $cases or $projs object depending on whether $work_type === WorkTypes::Study .

Answer 1

您缺少括号：

$thisTable = ($work_type === WorkTypes::Study ? &$cases : &$projs);

Answer 2

有时候，遗失了(括号可能会杀死您，这对我们来说是最好的。

$thisTable = ($work_type === WorkTypes::Study ? &$cases : &$projs);

Answer 3

The highlighter is right: the reference operator does not work inside a ternary operator because the =& is atomic (although the spaces don't seem to matter too much). Use this instead:

$work_type === WorkTypes::Study ? $thisTable = &$cases : $thisTable = &$projs;

(and as others have mentioned: either no brackets or both)

See also this SO answer .