Make use of fgets()
<?php
$handle = fopen('test.php','r+');
if ($handle) {
while (($buffer = fgets($handle, 4096)) !== false) {
echo htmlentities($buffer);
}
if (!feof($handle)) {
echo "Error: unexpected fgets() fail\n";
}
fclose($handle);
}
Assuming your test.php
contains a code of
<?php
echo "Hello World";
?>