I have this loop that prints 6 rows (multicell) for about 30 times. The issue is that when it reaches the bottom page it prints 2 or 3 rows from the multicell and on the nex
Use GetY to get the current position, subtract it from the height of your document. If that is less than 6x (you have 6 rows) your multicell height, then force a page break by using AddPage.
I know you fixed this, but for the benefit of anyone else, this should give a broad idea.
<?php
$p = new FPDF();
$p->AddPage();
$p->SetFont('Arial','B',16);
$p->SetAutoPageBreak(false);
$height_of_cell = 60; // mm
$page_height = 286.93; // mm (portrait letter)
$bottom_margin = 0; // mm
for($i=0;$i<=100;$i++) :
$block=floor($i/6);
$space_left=$page_height-($p->GetY()+$bottom_margin); // space left on page
if ($i/6==floor($i/6) && $height_of_cell > $space_left) {
$p->AddPage(); // page break
}
$p->Cell(100,10,'This is a text line - Group '.$block,'B',2);
endfor;
$p->Output();
?>