页面脚本 php 求教
function TrainHead($sdata,$edata){
$lastmin = (strtotime($edata["AllTime"])-strtotime($sdata["AllTime"]))/60;
$lasthour = (int)($lastmin / 60);
$lastmin %= 60;
$lasttime = $lasthour."???±".$lastmin."·???";
?>
……本人完全不懂脚本语言,但是数据库实验要求写页面,而且这星期就要交报告。这段网上找的代码也不知道哪里出错了,显示:
Notice: Undefined variable: sdata in C:\xampp\htdocs\showdata.php on line 15
class=info train=
Notice: Undefined variable: sdata in C:\xampp\htdocs\showdata.php on line 15
>
Notice: Undefined variable: sdata in C:\xampp\htdocs\showdata.php on line 19
Notice: Undefined variable: sdata in C:\xampp\htdocs\showdata.php on line 23
Notice: Undefined variable: sdata in C:\xampp\htdocs\showdata.php on line 26-
Notice: Undefined variable: edata in C:\xampp\htdocs\showdata.php on line 26
Notice: Undefined variable: sdata in C:\xampp\htdocs\showdata.php on line 29
Notice: Undefined variable: edata in C:\xampp\htdocs\showdata.php on line 32
Notice: Undefined variable: lasttime in C:\xampp\htdocs\showdata.php on line 35
……
不懂啊,求大神帮忙啊,到底怎么改才对,谢谢啦~~~~
------解决思路----------------------
php都是这样的
------解决思路----------------------
看提示明显是变量没有定义。
function TrainHead($sdata,$edata){
调用这个方法时,没有传$sdata这个参数,可以检查调用这个方法的语句。

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

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