Question

我曾试图这样做,但我却继续犯以下错误:

if (isset($_POST[ submit ])) {
    if ( isset($_POST[ agree ]) == false  || 
         isset($_POST[ name ] == false    || 
         isset($_POST[ email ] == false   ||  
         isset($_POST[ title ] == false   ||  
         isset($_POST[ program ] == false || 
         isset($_POST[ course ] == false  ||  
         isset($_POST[ file ] == false    ||) {
        echo   <font color="red"> Please complete all required fields </font><br><br>  ;
    }
}

是否有可能在公共卫生和社会福利部中这样做? 这将使我的法典更加可读。

Answer 1

是的,它完全可行,但你最后有一个挂图(> > > > > > > >,没有表达,你又失去了一个封闭式编码()

而且,你也可以这样做。



if (!isset($_POST[ agree ], $_POST[ name ], ...))


或

if (array_diff(array( agree ,  name , ...), array_keys($_POST)))


Please note though that all this is probably not testing what you want to test. If you have a f或m, all those fields will be set. Unless the user actively manipulates the f或m, all fields will be submitted with the value "" (an empty string), which makes isset return true. You re either looking f或 empty 或 f或 m或e customized tests.

Answer 2


乌姆,如果你纠正了母子并离开了最后的<编码>>>>>>> >。 有效 php代码:

if (isset($_POST[ submit ])) {
   if (!isset($_POST[ agree ]) || 
       !isset($_POST[ name ]) || 
       !isset($_POST[ email ]) ||  
       !isset($_POST[ title ]) ||  
       !isset($_POST[ program ]) || 
       !isset($_POST[ course ])  ||  
       !isset($_POST[ file ])
   ) {
       echo  <font color="red">Please complete all required fields</font><br> ;
   }
}

通过这一方式,<代码><font> 要素为,代之以CSS。

Answer 3

这样做是否简单?

foreach(array( submit , agree , name , email , title , program , course , file ) as $value) {
    if(!isset($_POST[$value])) {
        /* insert form incomplete routine here */
        }
    }

Answer 4

几乎所有的您的<代码> 发送<>/代码>都遗漏了结括号。最后,你还有外事。

注:错误信息非常清楚地表明:

 Parse error: syntax error, unexpected T_IS_EQUAL, expecting  ,  or  )  in ... on line 5

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