在PHP中比较字符串值和数组中的字符串值时出错

Question

I'm trying to compare 2 values, one coming from post data and the other one coming from an array, the weird thing is, when I compare them, all of the records show that they are not equal but some of the values have equal values:

What I actually need to do is to unset those values that are not equal in the post data sent.

$a = $_POST['time']; (Value is 01:03)

$testarray = array("12:30","01:03","03:30");

for($x = 0; $x < count($testarray);$x++){
  if($a === $testarray[$x]){
    echo "ok";
  }
  else
  {
    echo "not";
  }
}

All of the my results are showing not, even though there is a similar value on one of the contents in the array.

What seems to be the problem here? I've check the values and the data types are both string.

Answer 1

use in_array

$a = $_POST['time']; //(Value is 01:03)

$testarray = array("12:30","01:03","03:30");


if( in_array($a, $testarray))
{
    echo "ok";
}
else
{
    echo "not";
}