PHP

php if

<?php
if ($a > $b) {
  echo "a is bigger than b";
  $b = $a;
}
?>

If statement PHP

<?php
  
  /*
  The Syntax for the if statement is:
  if (condition) {
  code to be executed if condition is true;
  }
  
  The condition must be in paranthesis
  
  If else:
  
  if (condition) {
  code to be executed if condition is true;
  } else {
  code to be executed if condition is false;
  }

  If... elsif... else:
  
  if (condition) {
  code to be executed if this condition is true;
  } elseif (condition) {
  code to be executed if first condition is false and this condition is true;
  } else {
  code to be executed if all conditions are false;
  }
  */
  
  $t = date("H");

  if ($t < "10") {
  echo "Have a good morning!";
  } elseif ($t < "20") {
  echo "Have a good day!";
  } else {
  echo "Have a good night!";
  }
?>

php ifelse

if ($a > $b) {
    echo "a is bigger than b";
} elseif ($a == $b) {
    echo "a is equal to b";
} else {
    echo "a is smaller than b";
}

php if condition

if(mysqli_num_rows($query_run) > 0)
  {
    //$rowCount=mysqli_num_rows($query_run);
      //$spreadsheet = new Spreadsheet();
      //$sheet = $spreadsheet->getActiveSheet();
      $count=27;

      while($row = mysqli_fetch_array($query_run)){

        

        // echo  $row['hall'] ;
        // echo  $row['regno'] ;
        // echo  $row['session'] ;
        $sheet->setCellValue('A'.$count, $row['hall']);
        $sheet->setCellValue('B'.$count, $row['regno']);
        $sheet->setCellValue('C'.$count, $row['session']);
        $sheet->setCellValue('D'.$count, $row['classroll']);
        $sheet->setCellValue('E'.$count, $row['examroll']);
        $sheet->setCellValue('F'.$count, $row['name']);

        $count++;
      }