TImeouts - how to prevent them

[exussum12]

Question	Answer
Humbug ver.	1.0.0-rc.0
Adapter ver.	PHPUnit 5.7
Platform	Ubuntu (Bash)
PHP ver.	7.1.9

How do you prevent timeouts ? for example

-        while (($line = fgets($handle)) !== false) {
+        while (($line = fgets($handle)) !== true) {

Causes a timeout, though I have no idea how to prevent that happening ?
Do I just accept it as a result value ?

Other examples include

-        for ($i = $start; $i <= $end; $i++) {
+        for ($i = $start; $i <= $end; $i--) {

Thanks