PHP's Counter program

Program | Counter 1) Text counter
<?php
$countfile = "/count.txt"; Set up files to save data
if (!file_exists ($countfile)) {//To determine if a file exists
EXEC ("Echo 0 > $countfile");
}
$fp = fopen ($countfile, "RW");
$length =filesize ($countfile);
$num = Fgets ($fp, $length);
$num + 1;
EXEC ("Rm-rf $countfile");
EXEC ("echo $num > $countfile");
Print "Total Access amount:." $num "."  People "; Show number of visits
?>
2) Graphics counter
?
$countfile = "/count-num.txt"; Set up files to save data
if (!file_exists ($countfile))//Determine if the file exists
{EXEC ("echo 0 > $countfile");}
$fp = fopen ($countfile, "RW");
$length =filesize ($countfile);
$num = Fgets ($fp, $length);
$num + 1;
EXEC ("Rm-rf $countfile");
EXEC ("echo $num > $countfile");
$len _str = strlen ($num);
for ($i =0; $i < $len _str; $i + +) {
$each _num = substr ($num, $i, 1);
$out _str = $out _str. "}
Print "Total Access amount:." $out _str "."  People "; Show number of visits
?>