PHP一些学识
PHP一些知识
1、类同名函数作为构造函数和_construct()的区别:在php早期的版本中,使用类同名函数作为构造函数,在php5中使用_construct()作为构造函数,为了实现向后兼容,php5中也支持类同名函数作为构造函数,但是当二者同时存在时,默认_construct()。
2、PHPBean和数组:类似于javabean,早期的PHP里使用PHPBean对象与数据库中的字段对应。但是这种方法会新增很多无用的类。所以在PHP中尽量使用数组来与数据库字段对应。
3、写php程序时,不要写结尾的?>。
4、PHP时区设置:php中默认取的是格林威治时间。设置当前时区的方法如下:1) 在php.ini中设置time_zone = Asia/Shanghai
2) 在程序中用date_default_timezone_set('Asia/Shanghai');

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