5 声明_PHP
推荐一行一个声明,因为这样以利于写注释。亦即,
int $level; // 缩进的程度
int $size; // 由制表符决定
要优于,
int $level, $size;
不要将不同类型变量的声明放在同一行,例如:
int $foo, $fooarray[]; //错误
注意:上面的例子中,在类型和标识符之间放了一个空格,另一种被允许的替代方式是使用制表符:
int $level; // 缩进的程度
int $size; // 由制表符决定
$currentEntry; // 通常选择制表符作为缩进的标准

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