php count为服务器上的空数组解决方案返回1

Question

I need to php count returns 0 for empty using server or mysql. Actually, in my case lot of places i have used count function, when i am upload my code to client server php count returns 1 for empty.So that it is create many issue. If any solution then please reply me. I am not want to change all the places where count used.

Answer 1

If i am not getting you wrong, you are passing a non-array element to count.
Look at following example code..

Code 1:

$var = false;
echo count($var); // print 1

Code 2:

$var = array();
echo count($var); // print 0

Code 3:

$var = array('');
echo count($var); // print 1

So better you should check whether the element is an array or not.

if(is_array($var))
{
   $var = array_filter($var);
   echo count($var);
}
else
{
   echo 0;
}

See Codepad.