douhan1992 2012-11-04 15:23 采纳率: 100%
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检查两个字符串是否为空不起作用

I have a conditional if check on a webform on which ajax (and php) is doing the submit work.

if(empty($name) or empty($message))
{
do something
}

The above is working if one of the 2 strings is empty.I want to add to the above

  or (empty($name) and empty($message))

for checking if both strings are empty but in someway its not working!I want to make sure all 3 senarios are covered,Name empty or Message empty or both empty. Any ideas?

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  • douyin4561 2012-11-04 15:25
    关注

    This will check that both $name and $message is not blank, than true

    if($name != '' &&  $message != '') {
      //Do something
    }
    

    If you use this, this will check if any 1 field is empty than the condition is true

    if($name == '' || $message == '') {
      //Do something
    }
    

    If you use this, this will be true if both are empty

    if($name == '' && $message == '') {
      //Do something
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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