PHP中mktime() 函数对于日期运算和验证
mktime() 函数对于日期运算和验证非常有用。它可以自动校正越界的输入:
// 语法:mktime(hour,minute,second,month,day,year) echo(date('Y-m-d', mktime(0,0,0, 12, 36, 2001))); echo(date('Y-m-d', mktime(0,0,0, 14, 1, 2001))); echo(date('Y-m-d', mktime(0,0,0, 1, 1, 2001))); echo(date('Y-m-d', mktime(0,0,0, 1, 1, 99))); /** 2002-01-05 (36=31+5) 2002-02-01 (14=12+2) 2001-01-01 1999-01-01 **/