php if-else失败

Question

What is wrong with this if-else statement.

if((strlen($objectData['pss'] >= 8))AND(strlen($objectData['pss'] <= 20)))
{
  //do my bidding
}
else
{
  echo "String to short or to long";
}

Ultimately I am trying to find if the variable is greater than or equal to 8 chars while being under or equal to 20 chars. My test string is 11 char, and I am seeing string to short/to long. I've done similar to this in the past, so I dunno what I mucked up at the moment (maybe Im just to tired to realize it)

Answer 1

if (strlen($objectData['pss']) >= 8 && strlen($objectData['pss']) <= 20)

Answer 2

if ((strlen($objectData['pss']) >= 8) and (strlen($objectData['pss']) <= 20))
{ 
  //do my bidding 
} 
else 
{ 
  echo "String to short or to long"; 
} 

I have corrected you brackets

Answer 3

是的你确实“累了”..你基本上是在计算表达式的长度而不是字符串本身：

if((strlen($objectData['pss']) >= 8)AND(strlen($objectData['pss']) <= 20))