check how many rows on a file

[osusano]

hello there i am currently doing something that read a file such as test.txt and the content is like this.

123456789
234567890
345678901
456789012
567890123
678901234

and i am reading the file test.txt like this

$n=20;
$fp = file($dir.$file); 
$i=0;
while($i < $n){ 
  prnit $fp[$i]
  $i++
}

this is already working but i dont wanna use $n to define how many times this while will loop

is theres a way that i can detect if the file is in end of file "EOF"?

[laserlight]

file() returns an array, so [man]count/man can be used:

$lines = file($dir . $file);
$lines_num = count($lines);
for ($i = 0; $i < $lines_num; $i++) {
	print $lines[$i];
}

however, in your example, using [man]foreach/man could be even simpler:

$lines = file($dir . $file);
foreach ($lines as $line) {
	echo $line;
}

I dont use $fp for the variable name as file() does not return a file pointer, so the name is misleading.

[osusano]

opppsss yes i forget about this function and i even use it in my other script 😛

thank you about this 🙂