htmlheadtitle正则表达式/title/headbodya href="./"返回列表/aform action="? echo $PHP_SELF; ?" method="post"请输入MM/DD/YYYY格式的日期:input type="text" name="date" value="? echo $date; ?"input type="submit" value="转换为YYYY-MM-DD格式"/form?if(isset($date)){ if ( ereg( "([0-9]{1,2})/([0-9]{1,2})/([0-9]{4})", $date, $regs ) ) { echo $regs[0] . "的转换结果为:" . $regs[3] . "-" . $regs[1] . "-" . $regs[2]; } else { echo "$date 的日期格式不对!br"; }}?/body/html...[ 查看全文 ]